Update

.github/FUNDING.yml

@@ -0,0 +1,7 @@
+# These are supported funding model platforms
+
+github: PrzemyslawKlys
+patreon: przemyslawklys
+ko_fi: przemyslawklys
+open_collective: evotec
+custom: https://paypal.me/PrzemyslawKlys

Docs/Set-GPOZaurrOwner.md

@@ -182,7 +182,7 @@ Accept wildcard characters: False
 Type: String[]
 Parameter Sets: Type
 Aliases:
-Accepted values: EmptyOrUnknown, NonAdministrative
+Accepted values: EmptyOrUnknown, NotAdministrative
 
 Required: True
 Position: Named

Examples/Example-03-RestoreGPO.ps1

@@ -1,6 +1,6 @@
 Import-Module "$PSScriptRoot\..\GPoZaurr.psd1" -Force
 
-$RestoreFrom = 'C:\Users\przemyslaw.klys\Desktop\GPO\2020-04-20_15_51_00'
+$RestoreFrom = 'C:\Users\przemyslaw.klys\Desktop\GPO\2020-04-26_10_29_34'
 
 $BackupInformation = Get-GPOZaurrBackupInformation -BackupFolder $RestoreFrom
 $BackupInformation | Format-Table -a

Examples/Example-08-ListingPermissionsAdministrative.ps1

@@ -0,0 +1,4 @@
+Import-Module "$PSScriptRoot\..\GPoZaurr.psd1" -Force
+
+$T = Get-GPOZaurrPermission -GPOName 'Default Domain Policy' -Type 'All'
+$T | Format-Table *

Examples/Example-08-ListingPermissionsPerGPO.ps1

@@ -1,4 +1,12 @@
 Import-Module "$PSScriptRoot\..\GPoZaurr.psd1" -Force
 
-$T = Get-GPOZaurrPermission -GPOName 'ALL | Enable RDP' #-ExcludePermissionType GpoApply,GpoRead -IncludeGPOObject
+$T = Get-GPOZaurrPermission -GPOName 'Default DOmain Policy' #-Principal 'marikegerard' -PrincipalType Name # #-ExcludePermissionType GpoApply,GpoRead -IncludeGPOObject
+$T | Format-Table -AutoSize *
+$T = Get-GPOZaurrPermission -GPOName 'Default DOmain Policy' -Principal 'marikegerard' -PrincipalType Name # #-ExcludePermissionType GpoApply,GpoRead -IncludeGPOObject
+$T | Format-Table -AutoSize *
+$T = Get-GPOZaurrPermission -GPOName 'Default DOmain Policy' -Principal 'EVOTEC\marikegerard' -PrincipalType Name # #-ExcludePermissionType GpoApply,GpoRead -IncludeGPOObject
+$T | Format-Table -AutoSize *
+$T = Get-GPOZaurrPermission -GPOName 'Default DOmain Policy' -Principal 'S-1-5-18' -PrincipalType Sid # #-ExcludePermissionType GpoApply,GpoRead -IncludeGPOObject
+$T | Format-Table -AutoSize *
+$T = Get-GPOZaurrPermission -GPOName 'Default DOmain Policy' -Principal 'CN=Enterprise Admins,CN=Users,DC=ad,DC=evotec,DC=xyz' -PrincipalType DistinguishedName # #-ExcludePermissionType GpoApply,GpoRead -IncludeGPOObject
 $T | Format-Table -AutoSize *

Examples/Example-08-ListingPermissionsUnknown.ps1

@@ -0,0 +1,4 @@
+Import-Module "$PSScriptRoot\..\GPoZaurr.psd1" -Force
+
+$T = Get-GPOZaurrPermission -Type Unknown -Verbose
+$T | Format-Table *

Examples/Example-09-RemovingGPOPermissionUnknown.ps1

@@ -1,3 +1,3 @@
 Import-Module "$PSScriptRoot\..\GPoZaurr.psd1" -Force
-
-Remove-GPOZaurrPermission -Verbose -Type Unknown -WhatIf
+#Clear-Host
+Remove-GPOZaurrPermission -Verbose -Type Unknown -LimitProcessing 1 #-WhatIf

Examples/Example-09-RemovingGPOpermissionNamed.ps1

@@ -1,13 +1,6 @@
 Import-Module "$PSScriptRoot\..\GPoZaurr.psd1" -Force
 
-$Named = @(
-    'S-1-5-21-853615985-2870445339-3163598659-1105'
-)
+$T = Get-GPOZaurrPermission -GPOName 'Default DOmain Policy'
+$T | Format-Table -AutoSize *
 
-# Using exclude permission types (it may not be good idea to delete GPORead/GPOApply)
-#Remove-GPOZaurrPermission -Verbose -Type Named -WhatIf -LimitProcessing 2 -NamedObjects $Named -ExcludePermissionType GpoRead,GpoApply
-
-# But
-#Remove-GPOZaurrPermission -Type Named -NamedObjects $Named -IncludePermissionType GpoEditDeleteModifySecurity -SkipWellKnown -SkipAdministrative -Verbose -WhatIf
-
-Remove-GPOZaurrPermission -Type Named -NamedObjects $Named -SkipWellKnown -SkipAdministrative -Verbose #-WhatIf
+Remove-GPOZaurrPermission -GPOName 'Default DOmain Policy' -Principal 'S-1-5-21-853615985-2870445339-3163598659-3755' -Verbose #-WhatIf #-IncludePermissionType GpoApply #-WhatIf

Examples/Example-10-ListingGPO.ps1

@@ -0,0 +1,6 @@
+Import-Module "$PSScriptRoot\..\GPoZaurr.psd1" -Force
+
+Get-GPOZaurrAD | Format-Table
+Get-GPOZaurrAD -Forest 'test.evotec.pl' | Format-Table
+
+Get-GPOZaurrAD -GPOName 'Default Domain Policy' -IncludeDomains 'ad.evotec.pl' | Format-Table

Examples/Example-10-ListingGPOLong.ps1

@@ -0,0 +1,4 @@
+Import-Module "$PSScriptRoot\..\GPoZaurr.psd1" -Force
+
+$GPOS = Get-GPOZaurr
+$GPOS | Format-Table -AutoSize

Examples/Example-11-ReplaceGPOOwnerAutomated.ps1

@@ -1,13 +1,17 @@
 Import-Module "$PSScriptRoot\..\GPoZaurr.psd1" -Force
 
 # This Example shows how to deal with GPOs that have owner that doesn't exists anymore (deleted userr or diff domain) - EmptyOrUnknown
-# And also can fix at the same time NonAdministrative - this basically looks for users/groups that are not Domain Admins or Enterprise Admins
+# And also can fix at the same time NotAdministrative - this basically looks for users/groups that are not Domain Admins or Enterprise Admins
 # regardless if current user is still Domain Admin or not
 
-$GPOs = Get-GPOZaurr #-GPOName 'New Group Policy Object'
-$GPOs | Format-Table DisplayName, Owner, OwnerSID, OwnerType
+$GPOs = Get-GPOZaurrOwner -IncludeSysvol #-GPOName
+$GPOs | Format-Table  DisplayName, Owner, OwnerSID, OwnerType, SysvolOwner, SysvolSID, SysvolType
 
-Set-GPOZaurrOwner -Type 'EmptyOrUnknown' -Verbose -LimitProcessing 1 -WhatIf
+#Set-GPOZaurrOwner -Type Unknown -Verbose  #-LimitProcessing 2 -WhatIf
+Set-GPOZaurrOwner -Type NotAdministrative  -Verbose -LimitProcessing 2 -WhatIf
+#Set-GPOZaurrOwner -Type NotMatching -Verbose -LimitProcessing 2 -WhatIf
 
-$GPOs = Get-GPOZaurr #-GPOName 'New Group Policy Object'
-$GPOs | Format-Table DisplayName, Owner, OwnerSID
+#Set-GPOZaurrOwner -GPOName 'COMPUTERS | Enable Sets' -Verbose -Principal 'przemyslaw.klys' -WhatIf #-SkipSysvol
+#Set-GPOZaurrOwner -GPOName 'New Group Policy Object' -Verbose #-WhatIf #-SkipSysvol
+#$GPOs = Get-GPOZaurrOwner -IncludeSysvol #-GPOName 'New Group Policy Object'
+#$GPOs | Format-Table DisplayName, Owner, OwnerSID

Examples/Example-13-ListingOwners02.ps1

@@ -0,0 +1,12 @@
+Import-Module "$PSScriptRoot\..\GPoZaurr.psd1" -Force
+
+$T = Get-GPOZaurrOwner -Verbose -IncludeSysvol -Forest 'test.evotec.pl'
+$T | Format-Table *
+#$T | Out-HtmlView -ScrollX
+
+return
+$T = Get-GPOZaurrOwner -Verbose -IncludeSysvol -GPOName 'Default Domain Policy'
+$T | Format-Table *
+
+$T = Get-GPOZaurrOwner -Verbose -IncludeSysvol -GPOGuid '4E1F9C70-1DDB-4AB6-BBA3-14A8E07F0B4B'
+$T | Format-Table *

Examples/Example-14-ListingGPOsPerOU1.ps1

@@ -1,3 +1,3 @@
 Import-Module "$PSScriptRoot\..\GPoZaurr.psd1" -Force
 
-Get-GPOZaurrLink | Format-Table -AutoSize
+Get-GPOZaurrLink | Format-Table -AutoSize *

Examples/Example-14-ListingGPOsSpecial.ps1

@@ -0,0 +1,11 @@
+Import-Module "$PSScriptRoot\..\GPoZaurr.psd1" -Force
+
+Clear-Host
+
+Get-GPOZaurrLink -Linked Root | Format-Table -AutoSize
+
+Get-GPOZaurrLink -Linked Site | Format-Table -AutoSize
+
+Get-GPOZaurrLink -Linked DomainControllers | Format-Table -AutoSize
+
+Get-GPOZaurrLink -Linked Other | Format-Table -AutoSize

Examples/Example-16-AddRemoveGPOPermission01.ps1

@@ -5,13 +5,13 @@ Clear-Host
 $T = Get-GPOZaurrPermission -GPOName 'ALL | Enable RDP' #-IncludeGPOObject #-ExcludePermissionType GpoApply,GpoRead -IncludeGPOObject
 $T | Format-Table -AutoSize *
 
-Add-GPOZaurrPermission -GPOName 'ALL | Enable RDP' -PermissionType GpoApply -Principal 'przemyslaw.klys' -Verbose
+Add-GPOZaurrPermission -GPOName 'ALL | Enable RDP' -PermissionType GpoEdit -Principal 'przemyslaw.klys' -Verbose
 
 $T = Get-GPOZaurrPermission -GPOName 'ALL | Enable RDP' #-ExcludePermissionType GpoApply,GpoRead -IncludeGPOObject
 $T | Format-Table -AutoSize *
 
 Add-GPOZaurrPermission -GPOName 'ALL | Enable RDP' -PermissionType GpoEditDeleteModifySecurity -Principal 'Domain Admins' -Verbose
-Remove-GPOZaurrPermission -GPOName 'ALL | Enable RDP' -PermissionType GpoApply -Principal 'przemyslaw.klys' -PrincipalType Name -Verbose
+Remove-GPOZaurrPermission -GPOName 'ALL | Enable RDP' -PermissionType GpoEdit -Principal 'przemyslaw.klys' -PrincipalType Name -Verbose
 
 $T = Get-GPOZaurrPermission -GPOName 'ALL | Enable RDP' #-ExcludePermissionType GpoApply,GpoRead -IncludeGPOObject
 $T | Format-Table -AutoSize *

Examples/Example-16-AddRemoveGPOPermission03.ps1

@@ -0,0 +1,20 @@
+#Clear-Host
+Import-Module "$PSScriptRoot\..\GPoZaurr.psd1" -Force
+
+$ApprovedGroups = @(
+    'GDS-TestGroup10'
+)
+$RootGroups = @(
+    #'przemyslaw.klys'
+)
+
+
+Invoke-GPOZaurrPermission -Linked Root -Verbose {
+    Set-GPOOwner -Type Administrative
+    #Set-GPOOwner -Principal 'EVOTEC\Enterprise Admins'
+    #Set-GPOOwner -Principal 'Domain Admins'
+    Remove-GPOPermission -Type Administrative -IncludePermissionType GPOCustom
+    Remove-GPOPermission -Type NotAdministrative, NotWellKnownAdministrative -IncludePermissionType GpoEdit, GpoEditDeleteModifySecurity
+    Add-GPOPermission -Type Administrative -IncludePermissionType GpoEditDeleteModifySecurity
+    #Add-GPOPermission -Type WellKnownAdministrative -IncludePermissionType GpoEditDeleteModifySecurity
+} #-WhatIf #| Format-Table *

Examples/Example-16-AddRemoveGPOPermission04.ps1

@@ -0,0 +1,11 @@
+Import-Module "$PSScriptRoot\..\GPoZaurr.psd1" -Force
+
+Invoke-GPOZaurrPermission -Verbose -SearchBase 'OU=Computers,OU=Production,DC=ad,DC=evotec,DC=xyz' {
+    Set-GPOOwner -Type Administrative
+    #Set-GPOOwner -Principal 'EVOTEC\Enterprise Admins'
+    #Set-GPOOwner -Principal 'Domain Admins'
+    #Remove-GPOPermission -Type Administrative -IncludePermissionType GPOCustom
+    Remove-GPOPermission -Type NotAdministrative, NotWellKnownAdministrative -IncludePermissionType GpoEdit, GpoEditDeleteModifySecurity
+    #Add-GPOPermission -Type Administrative -IncludePermissionType GpoEditDeleteModifySecurity
+    #Add-GPOPermission -Type WellKnownAdministrative -IncludePermissionType GpoEditDeleteModifySecurity
+} #-WhatIf #| Format-Table *

Examples/Example-17-ListInconsistentACL.ps1

@@ -0,0 +1,4 @@
+Import-Module "$PSScriptRoot\..\GPoZaurr.psd1" -Force
+
+#Get-GPOZaurrPermissionConsistency -Type All -Forest 'test.evotec.pl' | Format-Table
+Get-GPOZaurrPermissionConsistency -Type All | Format-Table

Examples/Example-17-RepairInconsistentACL.ps1

@@ -0,0 +1,5 @@
+Import-Module "$PSScriptRoot\..\GPoZaurr.psd1" -Force
+
+Get-GPOZaurrPermissionConsistency -GPOName 'Default Domain Controllers Policy' -IncludeDomains 'ad.evotec.xyz'
+
+Repair-GPOZaurrPermissionConsistency -GPOName 'Default Domain Controllers Policy' -IncludeDomains 'ad.evotec.xyz' #-WhatIf -Verbose

Examples/Example-18-ListInconsistenciesACLAdvanced.ps1

@@ -0,0 +1,9 @@
+Import-Module "$PSScriptRoot\..\GPoZaurr.psd1" -Force
+#Get-GPOZaurrPermissionConsistency -Type All -Forest 'test.evotec.pl' | Format-Table
+
+$Output = Get-GPOZaurrPermissionConsistency -GPOName 'Default Domain Controllers Policy' -IncludeDomains 'ad.evotec.xyz' -VerifyInside
+$Output | Format-Table DisplayName, DomainName, ACLConsistent, ACLConsistentInside
+$Output.ACLConsistentInsideDetails | Format-Table
+
+$Output = Get-GPOZaurrPermissionConsistency -VerifyInside -Type 'All'
+$Output | Format-Table

GPOZaurr.psd1

@@ -5,9 +5,9 @@
     CompatiblePSEditions = 'Desktop'
     Copyright            = '(c) 2011 - 2020 Przemyslaw Klys @ Evotec. All rights reserved.'
     Description          = 'Group Policy Eater'
-    FunctionsToExport    = 'Add-GPOZaurrPermission', 'Backup-GPOZaurr', 'Get-GPOZaurr', 'Get-GPOZaurrBackupInformation', 'Get-GPOZaurrLink', 'Get-GPOZaurrPassword', 'Get-GPOZaurrPermission', 'Get-GPOZaurrWMI', 'New-GPOZaurrWMI', 'Remove-GPOZaurr', 'Remove-GPOZaurrPermission', 'Remove-GPOZaurrWMI', 'Restore-GPOZaurr', 'Save-GPOZaurrFiles', 'Set-GPOZaurrOwner'
+    FunctionsToExport    = 'Add-GPOPermission', 'Add-GPOZaurrPermission', 'Backup-GPOZaurr', 'Get-GPOZaurr', 'Get-GPOZaurrAD', 'Get-GPOZaurrBackupInformation', 'Get-GPOZaurrLink', 'Get-GPOZaurrOwner', 'Get-GPOZaurrPassword', 'Get-GPOZaurrPermission', 'Get-GPOZaurrPermissionConsistency', 'Get-GPOZaurrWMI', 'Invoke-GPOZaurrPermission', 'New-GPOZaurrWMI', 'Remove-GPOPermission', 'Remove-GPOZaurr', 'Remove-GPOZaurrPermission', 'Remove-GPOZaurrWMI', 'Repair-GPOZaurrPermissionConsistency', 'Restore-GPOZaurr', 'Save-GPOZaurrFiles', 'Set-GPOOwner', 'Set-GPOZaurrOwner'
     GUID                 = 'f7d4c9e4-0298-4f51-ad77-e8e3febebbde'
-    ModuleVersion        = '0.0.19'
+    ModuleVersion        = '0.0.24'
     PowerShellVersion    = '5.1'
     PrivateData          = @{
         PSData = @{
@@ -17,11 +17,11 @@
         }
     }
     RequiredModules      = @{
-        ModuleVersion = '0.0.135'
+        ModuleVersion = '0.0.141'
         ModuleName    = 'PSSharedGoods'
         Guid          = 'ee272aa8-baaa-4edf-9f45-b6d6f7d844fe'
     }, @{
-        ModuleVersion = '0.0.48'
+        ModuleVersion = '0.0.55'
         ModuleName    = 'ADEssentials'
         Guid          = '9fc9fd61-7f11-4f4b-a527-084086f1905f'
     }, 'ActiveDirectory', 'GroupPolicy', 'CimCmdlets', 'Microsoft.PowerShell.Management', 'Microsoft.PowerShell.Utility'

Private/Get-ADAdministrativeGroups.ps1

@@ -1,74 +0,0 @@
-
-function Get-ADADministrativeGroups {
-    <#
-    .SYNOPSIS
-    Short description
-
-    .DESCRIPTION
-    Long description
-
-    .PARAMETER Type
-    Parameter description
-
-    .PARAMETER Forest
-    Parameter description
-
-    .PARAMETER ExcludeDomains
-    Parameter description
-
-    .PARAMETER IncludeDomains
-    Parameter description
-
-    .PARAMETER ExtendedForestInformation
-    Parameter description
-
-    .EXAMPLE
-    Get-ADADministrativeGroups -Type DomainAdmins, EnterpriseAdmins
-
-    Output (Where VALUE is Get-ADGroup output):
-    Name                           Value
-    ----                           -----
-    ByNetBIOS                      {EVOTEC\Domain Admins, EVOTEC\Enterprise Admins, EVOTECPL\Domain Admins}
-    ad.evotec.xyz                  {DomainAdmins, EnterpriseAdmins}
-    ad.evotec.pl                   {DomainAdmins}
-
-    .NOTES
-    General notes
-    #>
-    [cmdletBinding()]
-    param(
-        [parameter(Mandatory)][validateSet('DomainAdmins', 'EnterpriseAdmins')][string[]] $Type,
-        [alias('ForestName')][string] $Forest,
-        [string[]] $ExcludeDomains,
-        [alias('Domain', 'Domains')][string[]] $IncludeDomains,
-        [System.Collections.IDictionary] $ExtendedForestInformation
-    )
-    $ADDictionary = [ordered] @{ }
-    $ADDictionary['ByNetBIOS'] = [ordered] @{ }
-    $ADDictionary['BySID'] = [ordered] @{ }
-
-    $ForestInformation = Get-WinADForestDetails -Forest $Forest -IncludeDomains $IncludeDomains -ExcludeDomains $ExcludeDomains -ExtendedForestInformation $ExtendedForestInformation
-    foreach ($Domain in $ForestInformation.Domains) {
-        $ADDictionary[$Domain] = [ordered] @{ }
-        $QueryServer = $ForestInformation['QueryServers'][$Domain]['HostName'][0]
-        $DomainInformation = Get-ADDomain -Server $QueryServer
-
-        if ($Type -contains 'DomainAdmins') {
-            Get-ADGroup -Filter "SID -eq '$($DomainInformation.DomainSID)-512'" -Server $QueryServer -ErrorAction SilentlyContinue | ForEach-Object {
-                $ADDictionary['ByNetBIOS']["$($DomainInformation.NetBIOSName)\$($_.Name)"] = $_
-                $ADDictionary[$Domain]['DomainAdmins'] = "$($DomainInformation.NetBIOSName)\$($_.Name)"
-                $ADDictionary['BySID'][$_.SID.Value] = $_
-            }
-        }
-        if ($Type -contains 'EnterpriseAdmins') {
-            Get-ADGroup -Filter "SID -eq '$($DomainInformation.DomainSID)-519'" -Server $QueryServer -ErrorAction SilentlyContinue | ForEach-Object {
-                $ADDictionary['ByNetBIOS']["$($DomainInformation.NetBIOSName)\$($_.Name)"] = $_
-                $ADDictionary[$Domain]['EnterpriseAdmins'] = "$($DomainInformation.NetBIOSName)\$($_.Name)"
-                $ADDictionary['BySID'][$_.SID.Value] = $_ #"$($DomainInformation.NetBIOSName)\$($_.Name)"
-            }
-        }
-    }
-    return $ADDictionary
-}
-
-#Get-ADADministrativeGroups -Type DomainAdmins, EnterpriseAdmins

Private/Get-PrivGPOZaurrLInk.ps1

@@ -6,46 +6,50 @@
         [System.Collections.IDictionary] $GPOCache
     )
     if ($Object.GpLink -and $Object.GpLink.Trim() -ne '') {
-        $Object.GpLink -split { $_ -eq '[' -or $_ -eq ']' } -replace ';0' -replace 'LDAP://' | ForEach-Object {
+        $Object.GpLink -split { $_ -eq '[' -or $_ -eq ']' } -replace ';0' -replace 'LDAP://' | ForEach-Object -Process {
             if ($_) {
+                $DomainCN = ConvertFrom-DistinguishedName -DistinguishedName $_ -ToDomainCN
                 $Output = [ordered] @{
                     DistinguishedName = $Object.DistinguishedName
                     CanonicalName     = $Object.CanonicalName
                     Guid              = [Regex]::Match( $_, '(?={)(.*)(?<=})').Value -replace '{' -replace '}'
                 }
+                $Search = -join ($DomainCN, $Output['Guid'])
                 if ($GPOCache -and -not $Limited) {
-                    $Output['Name'] = $GPOCache[$Output['Guid']].DisplayName
-                    $Output['DomainName'] = $GPOCache[$Output['Guid']].DomainName
-                    $Output['Owner'] = $GPOCache[$Output['Guid']].Owner
-                    $Output['GpoStatus'] = $GPOCache[$Output['Guid']].GpoStatus
-                    $Output['Description'] = $GPOCache[$Output['Guid']].Description
-                    $Output['CreationTime'] = $GPOCache[$Output['Guid']].CreationTime
-                    $Output['ModificationTime'] = $GPOCache[$Output['Guid']].ModificationTime
+                    $Output['DisplayName'] = $GPOCache[$Search].DisplayName
+                    $Output['DomainName'] = $GPOCache[$Search].DomainName
+                    $Output['Owner'] = $GPOCache[$Search].Owner
+                    $Output['GpoStatus'] = $GPOCache[$Search].GpoStatus
+                    $Output['Description'] = $GPOCache[$Search].Description
+                    $Output['CreationTime'] = $GPOCache[$Search].CreationTime
+                    $Output['ModificationTime'] = $GPOCache[$Search].ModificationTime
                 }
                 $Output['GPODomainDistinguishedName'] = ConvertFrom-DistinguishedName -DistinguishedName $_ -ToDC
-                $Output['GPOLink'] = $_
+                $Output['GPODistinguishedName'] = $_
                 [PSCustomObject] $Output
             }
         }
     } elseif ($Object.LinkedGroupPolicyObjects -and $Object.LinkedGroupPolicyObjects.Trim() -ne '') {
-        $Object.LinkedGroupPolicyObjects -split { $_ -eq '[' -or $_ -eq ']' } -replace ';0' -replace 'LDAP://' | ForEach-Object {
+        $Object.LinkedGroupPolicyObjects -split { $_ -eq '[' -or $_ -eq ']' } -replace ';0' -replace 'LDAP://' | ForEach-Object -Process {
             if ($_) {
+                $DomainCN = ConvertFrom-DistinguishedName -DistinguishedName $_ -ToDomainCN
                 $Output = [ordered] @{
                     DistinguishedName = $Object.DistinguishedName
                     CanonicalName     = $Object.CanonicalName
                     Guid              = [Regex]::Match( $_, '(?={)(.*)(?<=})').Value -replace '{' -replace '}'
                 }
+                $Search = -join ($DomainCN, $Output['Guid'])
                 if ($GPOCache -and -not $Limited) {
-                    $Output['Name'] = $GPOCache[$Output['Guid']].DisplayName
-                    $Output['DomainName'] = $GPOCache[$Output['Guid']].DomainName
-                    $Output['Owner'] = $GPOCache[$Output['Guid']].Owner
-                    $Output['GpoStatus'] = $GPOCache[$Output['Guid']].GpoStatus
-                    $Output['Description'] = $GPOCache[$Output['Guid']].Description
-                    $Output['CreationTime'] = $GPOCache[$Output['Guid']].CreationTime
-                    $Output['ModificationTime'] = $GPOCache[$Output['Guid']].ModificationTime
+                    $Output['Name'] = $GPOCache[$Search].DisplayName
+                    $Output['DomainName'] = $GPOCache[$Search].DomainName
+                    $Output['Owner'] = $GPOCache[$Search].Owner
+                    $Output['GpoStatus'] = $GPOCache[$Search].GpoStatus
+                    $Output['Description'] = $GPOCache[$Search].Description
+                    $Output['CreationTime'] = $GPOCache[$Search].CreationTime
+                    $Output['ModificationTime'] = $GPOCache[$Search].ModificationTime
                 }
                 $Output['GPODomainDistinguishedName'] = ConvertFrom-DistinguishedName -DistinguishedName $_ -ToDC
-                $Output['GPOLink'] = $_
+                $Output['GPODistinguishedName'] = $_
                 [PSCustomObject] $Output
             }
         }

Private/Get-PrivPermission.ps1

@@ -2,6 +2,10 @@
     [cmdletBinding()]
     param(
         [Microsoft.GroupPolicy.Gpo] $GPO,
+
+        [string[]] $Principal,
+        [validateset('DistinguishedName', 'Name', 'Sid')][string] $PrincipalType = 'Sid',
+
         [switch] $SkipWellKnown,
         [switch] $SkipAdministrative,
         [switch] $IncludeOwner,
@@ -9,164 +13,194 @@
         [Microsoft.GroupPolicy.GPPermissionType[]] $ExcludePermissionType,
         [switch] $IncludeGPOObject,
         [System.Collections.IDictionary] $ADAdministrativeGroups,
-        [string[]] $Type,
+        [validateSet('Unknown', 'NotWellKnown', 'NotWellKnownAdministrative', 'NotAdministrative', 'Administrative', 'All', 'Default')][string[]] $Type,
         [System.Collections.IDictionary] $Accounts
     )
-    Write-Verbose "Get-GPOZaurrPermission - Processing $($GPO.DisplayName) from $($GPO.DomainName)"
-    $SecurityRights = $GPO.GetSecurityInfo()
-    $Index = 0
-    $SecurityRights | ForEach-Object -Process {
-        #Get-GPPermissions -Guid $GPO.ID -DomainName $GPO.DomainName -All -Server $QueryServer | ForEach-Object -Process {
-        $GPOPermission = $_
-        if ($ExcludePermissionType -contains $GPOPermission.Permission) {
-            $Index++
-            return
-        }
-        if ($IncludePermissionType) {
-            if ($IncludePermissionType -notcontains $GPOPermission.Permission) {
-                $Index++
-                return
-            }
-        }
-        if ($SkipWellKnown.IsPresent) {
-            if ($GPOPermission.Trustee.SidType -eq 'WellKnownGroup') {
-                $Index++
-                return
-            }
-        }
-        if ($SkipAdministrative.IsPresent) {
-            $IsAdministrative = $ADAdministrativeGroups['BySID'][$GPOPermission.Trustee.Sid.Value]
-            if ($IsAdministrative) {
-                $Index++
-                return
-            }
-        }
-        if ($Type -contains 'Unknown' -and $Type -notcontains 'All') {
-            # May need updates if there's more types
-            if ($GPOPermission.Trustee.SidType -ne 'Unknown') {
-                $Index++
-                return
-            }
-        }
-        $ReturnObject = [ordered] @{
-            DisplayName       = $GPO.DisplayName #      : ALL | Enable RDP
-            GUID              = $GPO.ID
-            DomainName        = $GPO.DomainName  #      : ad.evotec.xyz
-            Enabled           = $GPO.GpoStatus
-            Description       = $GPO.Description
-            CreationDate      = $GPO.CreationTime
-            ModificationTime  = $GPO.ModificationTime
-            Permission        = $GPOPermission.Permission  # : GpoEditDeleteModifySecurity
-            Inherited         = $GPOPermission.Inherited   # : False
-            Domain            = $GPOPermission.Trustee.Domain  #: EVOTEC
-            DistinguishedName = $GPOPermission.Trustee.DSPath  #: CN = Domain Admins, CN = Users, DC = ad, DC = evotec, DC = xyz
-            Name              = $GPOPermission.Trustee.Name    #: Domain Admins
-            Sid               = $GPOPermission.Trustee.Sid.Value     #: S - 1 - 5 - 21 - 853615985 - 2870445339 - 3163598659 - 512
-            SidType           = $GPOPermission.Trustee.SidType #: Group
-        }
-        if ($Accounts) {
-            $A = -join ($GPOPermission.Trustee.Domain, '\', $GPOPermission.Trustee.Name)
-            if ($A -and $Accounts[$A]) {
-                $ReturnObject['UserPrincipalName'] = $Accounts[$A].UserPrincipalName
-                $ReturnObject['AccountEnabled'] = $Accounts[$A].Enabled
-                $ReturnObject['DistinguishedName'] = $Accounts[$A].DistinguishedName
-                $ReturnObject['PasswordLastSet'] = if ($Accounts[$A].PasswordLastSet) { $Accounts[$A].PasswordLastSet } else { '' }
-                $ReturnObject['LastLogonDate'] = if ($Accounts[$A].LastLogonDate ) { $Accounts[$A].LastLogonDate } else { '' }
-                if (-not $ReturnObject['Sid']) {
-                    $ReturnObject['Sid'] = $Accounts[$A].Sid.Value
-                }
-                if ($Accounts[$A].ObjectClass -eq 'group') {
-                    $ReturnObject['SidType'] = 'Group'
-                } elseif ($Accounts[$A].ObjectClass -eq 'user') {
-                    $ReturnObject['SidType'] = 'User'
-                } elseif ($Accounts[$A].ObjectClass -eq 'computer') {
-                    $ReturnObject['SidType'] = 'Computer'
-                } else {
-                    $ReturnObject['SidType'] = 'EmptyOrUnknown'
-                }
-            } else {
-                $ReturnObject['UserPrincipalName'] = ''
-                $ReturnObject['AccountEnabled'] = ''
-                $ReturnObject['PasswordLastSet'] = ''
-                $ReturnObject['LastLogonDate'] = ''
-            }
-        }
-        if ($IncludeGPOObject) {
-            $ReturnObject['GPOObject'] = $GPO
-            $ReturnObject['GPOSecurity'] = $SecurityRights
-            $ReturnObject['GPOSecurityPermissionIndex'] = $Index
-        }
-        [PSCustomObject] $ReturnObject
-        $Index++
+    Begin {
+        Write-Verbose "Get-PrivPermission - Processing $($GPO.DisplayName) from $($GPO.DomainName)"
     }
-    if ($IncludeOwner.IsPresent) {
-        if ($GPO.Owner) {
-            $SplittedOwner = $GPO.Owner.Split('\')
-            $DomainOwner = $SplittedOwner[0]  #: EVOTEC
-            $DomainUserName = $SplittedOwner[1]   #: Domain Admins
-            $SID = $ADAdministrativeGroups['ByNetBIOS']["$($GPO.Owner)"].Sid.Value
-            if ($SID) {
-                $SIDType = 'Group'
-                $DistinguishedName = $ADAdministrativeGroups['ByNetBIOS']["$($GPO.Owner)"].DistinguishedName
+    Process {
+        $SecurityRights = $GPO.GetSecurityInfo()
+        $SecurityRights | ForEach-Object -Process {
+            #Get-GPPermissions -Guid $GPO.ID -DomainName $GPO.DomainName -All -Server $QueryServer | ForEach-Object -Process {
+            $GPOPermission = $_
+            if ($ExcludePermissionType -contains $GPOPermission.Permission) {
+                return
+            }
+            if ($IncludePermissionType) {
+                if ($IncludePermissionType -notcontains $GPOPermission.Permission) {
+                    return
+                }
+            }
+            if ($SkipWellKnown.IsPresent -or $Type -contains 'NotWellKnown') {
+                if ($GPOPermission.Trustee.SidType -eq 'WellKnownGroup') {
+                    return
+                }
+            }
+            if ($SkipAdministrative.IsPresent -or $Type -contains 'NotAdministrative') {
+                $IsAdministrative = $ADAdministrativeGroups['BySID'][$GPOPermission.Trustee.Sid.Value]
+                if ($IsAdministrative) {
+                    return
+                }
+            }
+            if ($Type -contains 'Administrative' -and $Type -notcontains 'All') {
+                $IsAdministrative = $ADAdministrativeGroups['BySID'][$GPOPermission.Trustee.Sid.Value]
+                if (-not $IsAdministrative) {
+                    return
+                }
+            }
+            if ($Type -contains 'NotWellKnownAdministrative' -and $Type -notcontains 'All') {
+                # We check for SYSTEM account
+                # Maybe we should make it a function and provide more
+                if ($GPOPermission.Trustee.Sid -eq 'S-1-5-18') {
+                    return
+                }
+            }
+            if ($Type -contains 'Unknown' -and $Type -notcontains 'All') {
+                # May need updates if there's more types
+                if ($GPOPermission.Trustee.SidType -ne 'Unknown') {
+                    return
+                }
+            }
+            if ($Principal) {
+                if ($PrincipalType -eq 'Sid') {
+                    if ($Principal -notcontains $GPOPermission.Trustee.Sid.Value) {
+                        return
+                    }
+                } elseif ($PrincipalType -eq 'DistinguishedName') {
+                    if ($Principal -notcontains $GPOPermission.Trustee.DSPath) {
+                        return
+                    }
+                } elseif ($PrincipalType -eq 'Name') {
+                    $UserMerge = -join ($GPOPermission.Trustee.Domain, '\', $GPOPermission.Trustee.Name)
+                    if ($Principal -notcontains $UserMerge -and $Principal -notcontains $GPOPermission.Trustee.Name) {
+                        return
+                    }
+                }
+            }
+            $ReturnObject = [ordered] @{
+                DisplayName       = $GPO.DisplayName #      : ALL | Enable RDP
+                GUID              = $GPO.ID
+                DomainName        = $GPO.DomainName  #      : ad.evotec.xyz
+                Enabled           = $GPO.GpoStatus
+                Description       = $GPO.Description
+                CreationDate      = $GPO.CreationTime
+                ModificationTime  = $GPO.ModificationTime
+                PermissionType    = if ($GPOPermission.Denied -eq $true) { 'Deny' } else { 'Allow' }
+                Permission        = $GPOPermission.Permission  # : GpoEditDeleteModifySecurity
+                Inherited         = $GPOPermission.Inherited   # : False
+                Domain            = $GPOPermission.Trustee.Domain  #: EVOTEC
+                DistinguishedName = $GPOPermission.Trustee.DSPath  #: CN = Domain Admins, CN = Users, DC = ad, DC = evotec, DC = xyz
+                Name              = $GPOPermission.Trustee.Name    #: Domain Admins
+                Sid               = $GPOPermission.Trustee.Sid.Value     #: S - 1 - 5 - 21 - 853615985 - 2870445339 - 3163598659 - 512
+                SidType           = $GPOPermission.Trustee.SidType #: Group
+            }
+            if ($Accounts) {
+                $A = -join ($GPOPermission.Trustee.Domain, '\', $GPOPermission.Trustee.Name)
+                if ($A -and $Accounts[$A]) {
+                    $ReturnObject['UserPrincipalName'] = $Accounts[$A].UserPrincipalName
+                    $ReturnObject['AccountEnabled'] = $Accounts[$A].Enabled
+                    $ReturnObject['DistinguishedName'] = $Accounts[$A].DistinguishedName
+                    $ReturnObject['PasswordLastSet'] = if ($Accounts[$A].PasswordLastSet) { $Accounts[$A].PasswordLastSet } else { '' }
+                    $ReturnObject['LastLogonDate'] = if ($Accounts[$A].LastLogonDate ) { $Accounts[$A].LastLogonDate } else { '' }
+                    if (-not $ReturnObject['Sid']) {
+                        $ReturnObject['Sid'] = $Accounts[$A].Sid.Value
+                    }
+                    if ($Accounts[$A].ObjectClass -eq 'group') {
+                        $ReturnObject['SidType'] = 'Group'
+                    } elseif ($Accounts[$A].ObjectClass -eq 'user') {
+                        $ReturnObject['SidType'] = 'User'
+                    } elseif ($Accounts[$A].ObjectClass -eq 'computer') {
+                        $ReturnObject['SidType'] = 'Computer'
+                    } else {
+                        $ReturnObject['SidType'] = 'EmptyOrUnknown'
+                    }
+                } else {
+                    $ReturnObject['UserPrincipalName'] = ''
+                    $ReturnObject['AccountEnabled'] = ''
+                    $ReturnObject['PasswordLastSet'] = ''
+                    $ReturnObject['LastLogonDate'] = ''
+                }
+            }
+            if ($IncludeGPOObject) {
+                $ReturnObject['GPOObject'] = $GPO
+                $ReturnObject['GPOSecurity'] = $SecurityRights
+                $ReturnObject['GPOSecurityPermissionItem'] = $GPOPermission
+            }
+            [PSCustomObject] $ReturnObject
+        }
+        if ($IncludeOwner.IsPresent) {
+            if ($GPO.Owner) {
+                $SplittedOwner = $GPO.Owner.Split('\')
+                $DomainOwner = $SplittedOwner[0]  #: EVOTEC
+                $DomainUserName = $SplittedOwner[1]   #: Domain Admins
+                $SID = $ADAdministrativeGroups['ByNetBIOS']["$($GPO.Owner)"].Sid.Value
+                if ($SID) {
+                    $SIDType = 'Group'
+                    $DistinguishedName = $ADAdministrativeGroups['ByNetBIOS']["$($GPO.Owner)"].DistinguishedName
+                } else {
+                    $SIDType = ''
+                    $DistinguishedName = ''
+                }
             } else {
-                $SIDType = ''
+                $DomainOwner = $GPO.Owner
+                $DomainUserName = ''
+                $SID = ''
+                $SIDType = 'EmptyOrUnknown'
                 $DistinguishedName = ''
             }
-        } else {
-            $DomainOwner = $GPO.Owner
-            $DomainUserName = ''
-            $SID = ''
-            $SIDType = 'EmptyOrUnknown'
-            $DistinguishedName = ''
-        }
-        $ReturnObject = [ordered] @{
-            DisplayName       = $GPO.DisplayName #      : ALL | Enable RDP
-            GUID              = $GPO.Id
-            DomainName        = $GPO.DomainName  #      : ad.evotec.xyz
-            Enabled           = $GPO.GpoStatus
-            Description       = $GPO.Description
-            CreationDate      = $GPO.CreationTime
-            ModificationTime  = $GPO.ModificationTime
-            Permission        = 'GpoOwner'  # : GpoEditDeleteModifySecurity
-            Inherited         = $false  # : False
-            Domain            = $DomainOwner
-            DistinguishedName = $DistinguishedName  #: CN = Domain Admins, CN = Users, DC = ad, DC = evotec, DC = xyz
-            Name              = $DomainUserName
-            Sid               = $SID     #: S - 1 - 5 - 21 - 853615985 - 2870445339 - 3163598659 - 512
-            SidType           = $SIDType #  #: Group
-        }
-        if ($Accounts) {
-            $A = $GPO.Owner
-            if ($A -and $Accounts[$A]) {
-                $ReturnObject['UserPrincipalName'] = $Accounts[$A].UserPrincipalName
-                $ReturnObject['AccountEnabled'] = $Accounts[$A].Enabled
-                $ReturnObject['DistinguishedName'] = $Accounts[$A].DistinguishedName
-                $ReturnObject['PasswordLastSet'] = if ($Accounts[$A].PasswordLastSet) { $Accounts[$A].PasswordLastSet } else { '' }
-                $ReturnObject['LastLogonDate'] = if ($Accounts[$A].LastLogonDate ) { $Accounts[$A].LastLogonDate } else { '' }
-                if (-not $ReturnObject['Sid']) {
-                    $ReturnObject['Sid'] = $Accounts[$A].Sid.Value
-                }
-                if ($Accounts[$A].ObjectClass -eq 'group') {
-                    $ReturnObject['SidType'] = 'Group'
-                } elseif ($Accounts[$A].ObjectClass -eq 'user') {
-                    $ReturnObject['SidType'] = 'User'
-                } elseif ($Accounts[$A].ObjectClass -eq 'computer') {
-                    $ReturnObject['SidType'] = 'Computer'
-                } else {
-                    $ReturnObject['SidType'] = 'EmptyOrUnknown'
-                }
-            } else {
-                $ReturnObject['UserPrincipalName'] = ''
-                $ReturnObject['AccountEnabled'] = ''
-                $ReturnObject['PasswordLastSet'] = ''
-                $ReturnObject['LastLogonDate'] = ''
+            $ReturnObject = [ordered] @{
+                DisplayName       = $GPO.DisplayName #      : ALL | Enable RDP
+                GUID              = $GPO.Id
+                DomainName        = $GPO.DomainName  #      : ad.evotec.xyz
+                Enabled           = $GPO.GpoStatus
+                Description       = $GPO.Description
+                CreationDate      = $GPO.CreationTime
+                ModificationTime  = $GPO.ModificationTime
+                Permission        = 'GpoOwner'  # : GpoEditDeleteModifySecurity
+                Inherited         = $false  # : False
+                Domain            = $DomainOwner
+                DistinguishedName = $DistinguishedName  #: CN = Domain Admins, CN = Users, DC = ad, DC = evotec, DC = xyz
+                Name              = $DomainUserName
+                Sid               = $SID     #: S - 1 - 5 - 21 - 853615985 - 2870445339 - 3163598659 - 512
+                SidType           = $SIDType #  #: Group
             }
+            if ($Accounts) {
+                $A = $GPO.Owner
+                if ($A -and $Accounts[$A]) {
+                    $ReturnObject['UserPrincipalName'] = $Accounts[$A].UserPrincipalName
+                    $ReturnObject['AccountEnabled'] = $Accounts[$A].Enabled
+                    $ReturnObject['DistinguishedName'] = $Accounts[$A].DistinguishedName
+                    $ReturnObject['PasswordLastSet'] = if ($Accounts[$A].PasswordLastSet) { $Accounts[$A].PasswordLastSet } else { '' }
+                    $ReturnObject['LastLogonDate'] = if ($Accounts[$A].LastLogonDate ) { $Accounts[$A].LastLogonDate } else { '' }
+                    if (-not $ReturnObject['Sid']) {
+                        $ReturnObject['Sid'] = $Accounts[$A].Sid.Value
+                    }
+                    if ($Accounts[$A].ObjectClass -eq 'group') {
+                        $ReturnObject['SidType'] = 'Group'
+                    } elseif ($Accounts[$A].ObjectClass -eq 'user') {
+                        $ReturnObject['SidType'] = 'User'
+                    } elseif ($Accounts[$A].ObjectClass -eq 'computer') {
+                        $ReturnObject['SidType'] = 'Computer'
+                    } else {
+                        $ReturnObject['SidType'] = 'EmptyOrUnknown'
+                    }
+                } else {
+                    $ReturnObject['UserPrincipalName'] = ''
+                    $ReturnObject['AccountEnabled'] = ''
+                    $ReturnObject['PasswordLastSet'] = ''
+                    $ReturnObject['LastLogonDate'] = ''
+                }
+            }
+            if ($IncludeGPOObject) {
+                $ReturnObject['GPOObject'] = $GPO
+                $ReturnObject['GPOSecurity'] = $SecurityRights
+                $ReturnObject['GPOSecurityPermissionItem'] = $null
+            }
+            [PSCustomObject] $ReturnObject
         }
-        if ($IncludeGPOObject) {
-            $ReturnObject['GPOObject'] = $GPO
-            $ReturnObject['GPOSecurity'] = $SecurityRights
-            $ReturnObject['GPOSecurityPermissionIndex'] = $null
-        }
-        [PSCustomObject] $ReturnObject
+    }
+    End {
+
     }
 }

Private/Get-XMLGPO.ps1

@@ -45,7 +45,7 @@
             } elseif ($WellKnown.Name) {
                 $OwnerType = 'WellKnown'
             } else {
-                $OwnerType = 'NonAdministrative'
+                $OwnerType = 'NotAdministrative'
             }
         } else {
             $OwnerType = 'EmptyOrUnknown'
@@ -53,48 +53,51 @@
     }
     if ($PermissionsOnly) {
         [PsCustomObject] @{
-            'DisplayName'    = $XMLContent.GPO.Name
-            'DomainName'     = $XMLContent.GPO.Identifier.Domain.'#text'
-            'GUID'           = $XMLContent.GPO.Identifier.Identifier.InnerText
-            'Enabled'        = $Enabled
-            'Name'           = $XMLContent.GPO.SecurityDescriptor.Owner.Name.'#text'
-            'Sid'            = $XMLContent.GPO.SecurityDescriptor.Owner.SID.'#text'
+            'DisplayName'          = $XMLContent.GPO.Name
+            'DomainName'           = $XMLContent.GPO.Identifier.Domain.'#text'
+            'GUID'                 = $XMLContent.GPO.Identifier.Identifier.InnerText -replace '{' -replace '}'
+            'Enabled'              = $Enabled
+            'Name'                 = $XMLContent.GPO.SecurityDescriptor.Owner.Name.'#text'
+            'Sid'                  = $XMLContent.GPO.SecurityDescriptor.Owner.SID.'#text'
             #'SidType'        = if (($XMLContent.GPO.SecurityDescriptor.Owner.SID.'#text').Length -le 10) { 'WellKnown' } else { 'Other' }
-            'PermissionType' = 'Allow'
-            'Inherited'      = $false
-            'Permissions'    = 'Owner'
+            'PermissionType'       = 'Allow'
+            'Inherited'            = $false
+            'Permissions'          = 'Owner'
+            'GPODistinguishedName' = $GPO.Path
         }
         $XMLContent.GPO.SecurityDescriptor.Permissions.TrusteePermissions | ForEach-Object -Process {
             if ($_) {
                 [PsCustomObject] @{
-                    'DisplayName'    = $XMLContent.GPO.Name
-                    'DomainName'     = $XMLContent.GPO.Identifier.Domain.'#text'
-                    'GUID'           = $XMLContent.GPO.Identifier.Identifier.InnerText
-                    'Enabled'        = $Enabled
-                    'Name'           = $_.trustee.name.'#Text'
-                    'Sid'            = $_.trustee.SID.'#Text'
+                    'DisplayName'          = $XMLContent.GPO.Name
+                    'DomainName'           = $XMLContent.GPO.Identifier.Domain.'#text'
+                    'GUID'                 = $XMLContent.GPO.Identifier.Identifier.InnerText -replace '{' -replace '}'
+                    'Enabled'              = $Enabled
+                    'Name'                 = $_.trustee.name.'#Text'
+                    'Sid'                  = $_.trustee.SID.'#Text'
                     #'SidType'        = if (($XMLContent.GPO.SecurityDescriptor.Owner.SID.'#text').Length -le 10) { 'WellKnown' } else { 'Other' }
-                    'PermissionType' = $_.type.PermissionType
-                    'Inherited'      = if ($_.Inherited -eq 'false') { $false } else { $true }
-                    'Permissions'    = $_.Standard.GPOGroupedAccessEnum
+                    'PermissionType'       = $_.type.PermissionType
+                    'Inherited'            = if ($_.Inherited -eq 'false') { $false } else { $true }
+                    'Permissions'          = $_.Standard.GPOGroupedAccessEnum
+                    'GPODistinguishedName' = $GPO.Path
                 }
             }
         }
     } elseif ($OwnerOnly) {
         [PsCustomObject] @{
-            'DisplayName' = $XMLContent.GPO.Name
-            'DomainName'  = $XMLContent.GPO.Identifier.Domain.'#text'
-            'GUID'        = $XMLContent.GPO.Identifier.Identifier.InnerText
-            'Enabled'     = $Enabled
-            'Owner'       = $XMLContent.GPO.SecurityDescriptor.Owner.Name.'#text'
-            'OwnerSID'    = $XMLContent.GPO.SecurityDescriptor.Owner.SID.'#text'
-            'OwnerType'   = $OwnerType
+            'DisplayName'          = $XMLContent.GPO.Name
+            'DomainName'           = $XMLContent.GPO.Identifier.Domain.'#text'
+            'GUID'                 = $XMLContent.GPO.Identifier.Identifier.InnerText -replace '{' -replace '}'
+            'Enabled'              = $Enabled
+            'Owner'                = $XMLContent.GPO.SecurityDescriptor.Owner.Name.'#text'
+            'OwnerSID'             = $XMLContent.GPO.SecurityDescriptor.Owner.SID.'#text'
+            'OwnerType'            = $OwnerType
+            'GPODistinguishedName' = $GPO.Path
         }
     } else {
         [PsCustomObject] @{
             'DisplayName'                       = $XMLContent.GPO.Name
             'DomainName'                        = $XMLContent.GPO.Identifier.Domain.'#text'
-            'GUID'                              = $XMLContent.GPO.Identifier.Identifier.InnerText
+            'GUID'                              = $XMLContent.GPO.Identifier.Identifier.InnerText -replace '{' -replace '}'
             'Linked'                            = $Linked
             'LinksCount'                        = $LinksCount
             'Enabled'                           = $Enabled
@@ -115,7 +118,7 @@
 
             'WMIFilter'                         = $GPO.WmiFilter.name
             'WMIFilterDescription'              = $GPO.WmiFilter.Description
-            'DistinguishedName'                 = $GPO.Path
+            'GPODistinguishedName'              = $GPO.Path
             'SDDL'                              = if ($Splitter -ne '') { $XMLContent.GPO.SecurityDescriptor.SDDL.'#text' -join $Splitter } else { $XMLContent.GPO.SecurityDescriptor.SDDL.'#text' }
             'Owner'                             = $XMLContent.GPO.SecurityDescriptor.Owner.Name.'#text'
             'OwnerSID'                          = $XMLContent.GPO.SecurityDescriptor.Owner.SID.'#text'

Private/Remove-PrivPermission.ps1

@@ -0,0 +1,66 @@
+function Remove-PrivPermission {
+    [cmdletBinding(SupportsShouldProcess)]
+    param(
+        [string] $Principal,
+        [validateset('DistinguishedName', 'Name', 'Sid')][string] $PrincipalType = 'DistinguishedName',
+        [PSCustomObject] $GPOPermission,
+        [alias('PermissionType')][Microsoft.GroupPolicy.GPPermissionType[]] $IncludePermissionType
+    )
+    if ($GPOPermission.Name) {
+        $Text = "Removing SID: $($GPOPermission.Sid), Name: $($GPOPermission.Name), SidType: $($GPOPermission.SidType) from domain $($GPOPermission.DomainName)"
+    } else {
+        $Text = "Removing SID: $($GPOPermission.Sid), Name: EMPTY, SidType: $($GPOPermission.SidType) from domain $($GPOPermission.DomainName)"
+    }
+    if ($PrincipalType -eq 'DistinguishedName') {
+        if ($GPOPermission.DistinguishedName -eq $Principal -and $GPOPermission.Permission -eq $IncludePermissionType) {
+            if ($PSCmdlet.ShouldProcess($GPOPermission.DisplayName, $Text)) {
+                try {
+                    Write-Verbose "Remove-GPOZaurrPermission - Removing permission $IncludePermissionType for $($Principal) / $($GPOPermission.Name) / Type: $($GPOPermission.PermissionType)"
+                    $GPOPermission.GPOSecurity.Remove($GPOPermission.GPOSecurityPermissionItem)
+                    $GPOPermission.GPOObject.SetSecurityInfo($GPOPermission.GPOSecurity)
+                } catch {
+                    Write-Warning "Remove-GPOZaurrPermission - Removing permission $IncludePermissionType failed for $($Principal) with error: $($_.Exception.Message)"
+                }
+            }
+        }
+    } elseif ($PrincipalType -eq 'Sid') {
+        if ($GPOPermission.Sid -eq $Principal -and $GPOPermission.Permission -eq $IncludePermissionType) {
+            if ($PSCmdlet.ShouldProcess($GPOPermission.DisplayName, $Text)) {
+                try {
+                    Write-Verbose "Remove-GPOZaurrPermission - Removing permission $IncludePermissionType for $($Principal) / $($GPOPermission.Name) / Type: $($GPOPermission.PermissionType)"
+                    $GPOPermission.GPOSecurity.Remove($GPOPermission.GPOSecurityPermissionItem)
+                    $GPOPermission.GPOObject.SetSecurityInfo($GPOPermission.GPOSecurity)
+                } catch {
+                    if ($_.Exception.Message -like '*The request is not supported. (Exception from HRESULT: 0x80070032)*') {
+                        Write-Warning "Remove-GPOZaurrPermission - Bummer! The request is not supported, but lets fix it differently."
+                        # This is basically atomic approach. We will totally remove any permissions for that user on ACL level to get rid of this situation.
+                        # This situation should only happen if DENY is on FULL Control
+                        $ACL = Get-ADACL -ADObject $GPOPermission.GPOObject.Path -Bundle #-Verbose:$VerbosePreference
+                        if ($ACL) {
+                            Remove-ADACL -ACL $ACL -Principal $Principal -AccessControlType Deny -Verbose:$VerbosePreference
+                        }
+                        # I've noticed that in situation where Edit settings, delete, modify security is set and then set to Deny we need to fix it once more
+                        $ACL = Get-ADACL -ADObject $GPOPermission.GPOObject.Path -Bundle
+                        if ($ACL) {
+                            Remove-ADACL -ACL $ACL -Principal $Principal -AccessControlType Allow -Verbose:$VerbosePreference
+                        }
+                    } else {
+                        Write-Warning "Remove-GPOZaurrPermission - Removing permission $IncludePermissionType failed for $($Principal) with error: $($_.Exception.Message)"
+                    }
+                }
+            }
+        }
+    } elseif ($PrincipalType -eq 'Name') {
+        if ($GPOPermission.Name -eq $Principal -and $GPOPermission.Permission -eq $IncludePermissionType) {
+            if ($PSCmdlet.ShouldProcess($GPOPermission.DisplayName, $Text)) {
+                try {
+                    Write-Verbose "Remove-GPOZaurrPermission - Removing permission $IncludePermissionType for $($Principal) / $($GPOPermission.Name) / Type: $($GPOPermission.PermissionType)"
+                    $GPOPermission.GPOSecurity.Remove($GPOPermission.GPOSecurityPermissionItem)
+                    $GPOPermission.GPOObject.SetSecurityInfo($GPOPermission.GPOSecurity)
+                } catch {
+                    Write-Warning "Remove-GPOZaurrPermission - Removing permission $IncludePermissionType failed for $($Principal) with error: $($_.Exception.Message)"
+                }
+            }
+        }
+    }
+}

Public/Add-GPOPermission.ps1

@@ -0,0 +1,30 @@
+function Add-GPOPermission {
+    [cmdletBinding()]
+    param(
+        [validateset('WellKnownAdministrative', 'Administrative', 'AuthenticatedUsers', 'Default')][string] $Type = 'Default',
+        [Microsoft.GroupPolicy.GPPermissionType] $IncludePermissionType,
+        [alias('Principal')][Array] $Trustee,
+        [alias('PrincipalType')][validateset('DistinguishedName', 'Name', 'Sid')][string] $TrusteeType = 'DistinguishedName'
+    )
+    if ($Type -eq 'Default') {
+        @{
+            Action                = 'Add'
+            Type                  = 'Standard'
+            Trustee               = $Trustee
+            IncludePermissionType = $IncludePermissionType
+            TrusteeType           = $TrusteeType
+        }
+    } elseif ($Type -eq 'AuthenticatedUsers') {
+        @{
+            Action                = 'Add'
+            Type                  = 'AuthenticatedUsers'
+            IncludePermissionType = $IncludePermissionType
+        }
+    } elseif ($Type -eq 'Administrative') {
+        @{
+            Action                = 'Add'
+            Type                  = 'Administrative'
+            IncludePermissionType = $IncludePermissionType
+        }
+    }
+}

Public/Add-GPOZaurrPermission.ps1

@@ -10,22 +10,28 @@
         [Parameter(ParameterSetName = 'ADObject', Mandatory)]
         [alias('OrganizationalUnit', 'DistinguishedName')][Microsoft.ActiveDirectory.Management.ADObject[]] $ADObject,
 
+        [validateset('WellKnownAdministrative', 'Administrative', 'AuthenticatedUsers', 'Default')][string] $Type = 'Default',
+
         [string] $Principal,
-        [Microsoft.GroupPolicy.GPPermissionType[]] $PermissionType,
+        [alias('IncludePermissionType')][Microsoft.GroupPolicy.GPPermissionType[]] $PermissionType,
         [switch] $Inheritable,
 
         [alias('ForestName')][string] $Forest,
         [string[]] $ExcludeDomains,
         [alias('Domain', 'Domains')][string[]] $IncludeDomains,
         [System.Collections.IDictionary] $ExtendedForestInformation,
-
+        [System.Collections.IDictionary] $ADAdministrativeGroups,
         [int] $LimitProcessing
     )
     Begin {
-        $Count = 0
+        #$Count = 0
+        $ForestInformation = Get-WinADForestDetails -Forest $Forest -IncludeDomains $IncludeDomains -ExcludeDomains $ExcludeDomains -ExtendedForestInformation $ExtendedForestInformation
+        if (-not $ADAdministrativeGroups) {
+            $ADAdministrativeGroups = Get-ADADministrativeGroups -Type DomainAdmins, EnterpriseAdmins -Forest $Forest -IncludeDomains $IncludeDomains -ExcludeDomains $ExcludeDomains -ExtendedForestInformation $ExtendedForestInformation
+        }
+        $ForestInformation = Get-ADForest
     }
     Process {
-
         if ($GPOName) {
             $Splat = @{
                 GPOName = $GPOName
@@ -42,9 +48,9 @@
 
         $Splat['IncludeGPOObject'] = $true
         $Splat['Forest'] = $Forest
-        $Splat['IncludeDomains'] = $IncludeDomains
-        $Splat['ExcludeDomains'] = $ExcludeDomains
-        $Splat['ExtendedForestInformation'] = $ExtendedForestInformation
+        $Splat['IncludeDomains'] = $Domain
+        #$Splat['ExcludeDomains'] = $ExcludeDomains
+        #$Splat['ExtendedForestInformation'] = $ExtendedForestInformation
         #$Splat['ExcludePermissionType'] = $ExcludePermissionType
         #$Splat['IncludePermissionType'] = $PermissionType-
         $Splat['SkipWellKnown'] = $SkipWellKnown.IsPresent
@@ -54,15 +60,47 @@
 
         #Set-GPPermission -PermissionLevel $PermissionType -TargetName $Principal -TargetType Group -Verbose -DomainName 'ad.evotec.xyz' -Name $GPOName -Replace #-WhatIf
 
+        $AdministrativeExists = @{
+            DomainAdmins     = $false
+            EnterpriseAdmins = $false
+        }
+
         #continue
         [Array] $GPOPermissions = Get-GPOZaurrPermission @Splat
         [Array] $LimitedPermissions = foreach ($GPOPermission in $GPOPermissions) {
             #$GPOPermission = $_
             # continue
-            if ($GPOPermission.Name -eq $Principal -and $GPOPermission.Permission -eq $PermissionType) {
-                Write-Verbose "Add-GPOZaurrPermission - Permission $PermissionType already set for $($GPOPermission.Name) / $($GPOPermission.DomainName)"
-                $GPOPermission
-                #break
+            if ($Type -eq 'Default') {
+                if ($GPOPermission.Name -eq $Principal -and $GPOPermission.Permission -eq $PermissionType) {
+                    #Write-Verbose "Add-GPOZaurrPermission - Permission $PermissionType already set for $($GPOPermission.Name) / $($GPOPermission.DomainName)"
+                    $GPOPermission
+                    break
+                }
+            } elseif ($Type -eq 'Administrative') {
+                if ($GPOPermission.Permission -eq $PermissionType) {
+                    $AdministrativeGroup = $ADAdministrativeGroups['BySID'][$GPOPermission.SID]
+                    if ($AdministrativeGroup) {
+                        if ($GPOPermission.SID -like '*-512') {
+                            #Write-Verbose "Add-GPOZaurrPermission - Permission $PermissionType already set for $($GPOPermission.Name) / $($GPOPermission.DomainName)"
+                            $AdministrativeExists['DomainAdmins'] = $true
+                        } elseif ($GPOPermission.SID -like '*-519') {
+                            #Write-Verbose "Add-GPOZaurrPermission - Permission $PermissionType already set for $($GPOPermission.Name) / $($GPOPermission.DomainName)"
+                            $AdministrativeExists['EnterpriseAdmins'] = $true
+                        }
+                    }
+                }
+            } elseif ($Type -eq 'WellKnownAdministrative') {
+                if ($GPOPermission.Name -eq $Principal -and $GPOPermission.Permission -eq $PermissionType) {
+                    #Write-Verbose "Add-GPOZaurrPermission - Permission $PermissionType already set for $($GPOPermission.Name) / $($GPOPermission.DomainName)"
+                    $GPOPermission
+                    break
+                }
+            } elseif ($Type -eq 'AuthenticatedUsers') {
+                if ($GPOPermission.Name -eq $Principal -and $GPOPermission.Permission -eq $PermissionType) {
+                    #Write-Verbose "Add-GPOZaurrPermission - Permission $PermissionType already set for $($GPOPermission.Name) / $($GPOPermission.DomainName)"
+                    $GPOPermission
+                    break
+                }
             }
             # Write-Verbose "Test"
             # $GPOPermission
@@ -78,20 +116,37 @@
 
             # $GPOPermission.GPOObject.SetSecurityInfo($GPOPermission.GPOSecurity)
         }
+        if ($GPOPermissions.Count -gt 0) {
+            if ($LimitedPermissions.Count -gt 0) {
+                #$LimitedPermissions
+            } else {
+                if ($Type -eq 'Administrative') {
+                    if ($AdministrativeExists['DomainAdmins'] -eq $false) {
+                        $Principal = $ADAdministrativeGroups[$GPOPermission.DomainName]['DomainAdmins']
+                        Write-Verbose "Add-GPOZaurrPermission - Adding permission $PermissionType for $($Principal)"
+                        $AddPermission = [Microsoft.GroupPolicy.GPPermission]::new($Principal, $PermissionType, $Inheritable.IsPresent)
+                        $GPOPermissions[0].GPOSecurity.Add($AddPermission)
+                        $GPOPermissions[0].GPOObject.SetSecurityInfo( $GPOPermissions[0].GPOSecurity)
+                    }
+                    if ($AdministrativeExists['EnterpriseAdmins'] -eq $false) {
+                        $Principal = $ADAdministrativeGroups[$ForestInformation.RootDomain]['EnterpriseAdmins']
+                        Write-Verbose "Add-GPOZaurrPermission - Adding permission $PermissionType for $($Principal)"
+                        $AddPermission = [Microsoft.GroupPolicy.GPPermission]::new($Principal, $PermissionType, $Inheritable.IsPresent)
+                        $GPOPermissions[0].GPOSecurity.Add($AddPermission)
+                        $GPOPermissions[0].GPOObject.SetSecurityInfo( $GPOPermissions[0].GPOSecurity)
+                    }
+                } elseif ($Type -eq 'Default') {
+                    try {
+                        Write-Verbose "Add-GPOZaurrPermission - Adding permission $PermissionType for $($Principal)"
+                        $AddPermission = [Microsoft.GroupPolicy.GPPermission]::new($Principal, $PermissionType, $Inheritable.IsPresent)
+                        $GPOPermissions[0].GPOSecurity.Add($AddPermission)
+                        $GPOPermissions[0].GPOObject.SetSecurityInfo($GPOPermission.GPOSecurity)
+                    } catch {
+                        Write-Warning "Add-GPOZaurrPermission - Adding permission $PermissionType failed for $($Principal) with error: $($_.Exception.Message)"
+                    }
+                }
 
-        if ($LimitedPermissions.Count -gt 0) {
-            #$LimitedPermissions
-        } else {
-            try {
-                Write-Verbose "Add-GPOZaurrPermission - Adding permission $PermissionType for $($Principal)"
-                $AddPermission = [Microsoft.GroupPolicy.GPPermission]::new($Principal, $PermissionType, $Inheritable.IsPresent)
-                $GPOPermissions[0].GPOSecurity.Add($AddPermission)
-                $GPOPermissions[0].GPOObject.SetSecurityInfo($GPOPermission.GPOSecurity)
-            } catch {
-                Write-Warning "Add-GPOZaurrPermission - Adding permission $PermissionType failed for $($Principal) with error: $($_.Exception.Message)"
-            }
-
-            <#
+                <#
             [Microsoft.GroupPolicy.GPPermission]::new
 
             OverloadDefinitions
@@ -100,8 +155,12 @@
             Microsoft.GroupPolicy.GPPermission new(System.Security.Principal.IdentityReference identity, Microsoft.GroupPolicy.GPPermissionType rights, bool inheritable)
 
             #>
+            }
+        } else {
+            Write-Warning "Add-GPOZaurrPermission - GPO $($GPOPermissions[0].GPOName) has no permissions. Weird."
         }
     }
+
     End {
 
     }

Public/Get-GPOZaurr.ps1

@@ -12,10 +12,15 @@
 
         [switch] $PermissionsOnly,
         [switch] $OwnerOnly,
-        [switch] $Limited
+        [switch] $Limited,
+
+        [System.Collections.IDictionary] $ADAdministrativeGroups
     )
     Begin {
-        $ADAdministrativeGroups = Get-ADADministrativeGroups -Type DomainAdmins, EnterpriseAdmins -Forest $Forest -IncludeDomains $IncludeDomains -ExcludeDomains $ExcludeDomains -ExtendedForestInformation $ExtendedForestInformation
+        if (-not $ADAdministrativeGroups) {
+            Write-Verbose "Get-GPOZaurr - Getting ADAdministrativeGroups"
+            $ADAdministrativeGroups = Get-ADADministrativeGroups -Type DomainAdmins, EnterpriseAdmins -Forest $Forest -IncludeDomains $IncludeDomains -ExcludeDomains $ExcludeDomains -ExtendedForestInformation $ExtendedForestInformation
+        }
         if (-not $GPOPath) {
             $ForestInformation = Get-WinADForestDetails -Forest $Forest -IncludeDomains $IncludeDomains -ExcludeDomains $ExcludeDomains -ExtendedForestInformation $ExtendedForestInformation
         }
@@ -31,7 +36,7 @@
                             try {
                                 $XMLContent = Get-GPOReport -ID $_.ID -ReportType XML -Server $ForestInformation.QueryServers[$Domain].HostName[0] -Domain $Domain -ErrorAction Stop
                             } catch {
-                                Write-Warning "Get-GPOZaurr - Failed to ger GPOReport: $($_.Exception.Message). Skipping."
+                                Write-Warning "Get-GPOZaurr - Failed to get GPOReport: $($_.Exception.Message). Skipping."
                                 continue
                             }
                             Get-XMLGPO -OwnerOnly:$OwnerOnly.IsPresent -XMLContent $XMLContent -GPO $_ -PermissionsOnly:$PermissionsOnly.IsPresent -ADAdministrativeGroups $ADAdministrativeGroups
@@ -46,7 +51,7 @@
                             try {
                                 $XMLContent = Get-GPOReport -ID $_.ID -ReportType XML -Server $ForestInformation.QueryServers[$Domain].HostName[0] -Domain $Domain -ErrorAction Stop
                             } catch {
-                                Write-Warning "Get-GPOZaurr - Failed to ger GPOReport: $($_.Exception.Message). Skipping."
+                                Write-Warning "Get-GPOZaurr - Failed to get GPOReport: $($_.Exception.Message). Skipping."
                                 continue
                             }
                             Get-XMLGPO -OwnerOnly:$OwnerOnly.IsPresent -XMLContent $XMLContent -GPO $_ -PermissionsOnly:$PermissionsOnly.IsPresent -ADAdministrativeGroups $ADAdministrativeGroups
@@ -61,7 +66,7 @@
                             try {
                                 $XMLContent = Get-GPOReport -ID $_.ID -ReportType XML -Server $ForestInformation.QueryServers[$Domain].HostName[0] -Domain $Domain -ErrorAction Stop
                             } catch {
-                                Write-Warning "Get-GPOZaurr - Failed to ger GPOReport: $($_.Exception.Message). Skipping."
+                                Write-Warning "Get-GPOZaurr - Failed to get GPOReport: $($_.Exception.Message). Skipping."
                                 continue
                             }
                             Get-XMLGPO -OwnerOnly:$OwnerOnly.IsPresent -XMLContent $XMLContent -GPO $_ -PermissionsOnly:$PermissionsOnly.IsPresent -ADAdministrativeGroups $ADAdministrativeGroups

Public/Get-GPOZaurrAD.ps1

@@ -0,0 +1,101 @@
+function Get-GPOZaurrAD {
+    [cmdletbinding(DefaultParameterSetName = 'Default')]
+    param(
+        [Parameter(ParameterSetName = 'GPOName')]
+        [string] $GPOName,
+
+        [Parameter(ParameterSetName = 'GPOGUID')]
+        [alias('GUID', 'GPOID')][string] $GPOGuid,
+
+        [alias('ForestName')][string] $Forest,
+        [string[]] $ExcludeDomains,
+        [alias('Domain', 'Domains')][string[]] $IncludeDomains,
+        [System.Collections.IDictionary] $ExtendedForestInformation
+    )
+    Begin {
+        $ForestInformation = Get-WinADForestDetails -Extended -Forest $Forest -IncludeDomains $IncludeDomains -ExcludeDomains $ExcludeDomains -ExtendedForestInformation $ExtendedForestInformation
+    }
+    Process {
+        foreach ($Domain in $ForestInformation.Domains) {
+            if ($PSCmdlet.ParameterSetName -eq 'GPOGUID') {
+                if ($GPOGuid) {
+                    if ($GPOGUID -notlike '*{*') {
+                        $GUID = -join ("{", $GPOGUID, '}')
+                    } else {
+                        $GUID = $GPOGUID
+                    }
+                    $Splat = @{
+                        Filter = "(objectClass -eq 'groupPolicyContainer') -and (Name -eq '$GUID')"
+                        Server = $ForestInformation['QueryServers'][$Domain]['HostName'][0]
+                    }
+                } else {
+                    Write-Warning "Get-GPOZaurrAD - GPOGUID parameter is empty. Provide name and try again."
+                    continue
+                }
+            } elseif ($PSCmdlet.ParameterSetName -eq 'GPOName') {
+                if ($GPOName) {
+                    $Splat = @{
+                        Filter = "(objectClass -eq 'groupPolicyContainer') -and (DisplayName -eq '$GPOName')"
+                        Server = $ForestInformation['QueryServers'][$Domain]['HostName'][0]
+                    }
+                } else {
+                    Write-Warning "Get-GPOZaurrAD - GPOName parameter is empty. Provide name and try again."
+                    continue
+                }
+            } else {
+                $Splat = @{
+                    Filter = "(objectClass -eq 'groupPolicyContainer')"
+                    Server = $ForestInformation['QueryServers'][$Domain]['HostName'][0]
+                }
+            }
+            Get-ADObject @Splat -Properties DisplayName, Name, Created, Modified, gPCFileSysPath, gPCFunctionalityVersion, gPCWQLFilter, gPCMachineExtensionNames, Description, CanonicalName, DistinguishedName | ForEach-Object -Process { #, Deleted -IncludeDeletedObjects
+                #if ($_) {
+                $DomainCN = ConvertFrom-DistinguishedName -DistinguishedName $_.DistinguishedName -ToDomainCN
+                $Output = [ordered]@{ }
+                <#
+                $Search = -join ($DomainCN, $Output['Guid'])
+                if ($GPOCache -and -not $Limited) {
+                    $Output['DisplayName'] = $GPOCache[$Search].DisplayName
+                    $Output['DomainName'] = $GPOCache[$Search].DomainName
+                    $Output['Owner'] = $GPOCache[$Search].Owner
+                    $Output['GpoStatus'] = $GPOCache[$Search].GpoStatus
+                    $Output['Description'] = $GPOCache[$Search].Description
+                    $Output['CreationTime'] = $GPOCache[$Search].CreationTime
+                    $Output['ModificationTime'] = $GPOCache[$Search].ModificationTime
+                }
+                #>
+                $Output['DisplayName'] = $_.DisplayName
+                $Output['DomainName'] = $DomainCN
+                $Output['Description'] = $_.Description
+                $Output['GUID'] = $_.Name -replace '{' -replace '}'
+                $Output['Path'] = $_.gPCFileSysPath
+                $Output['FunctionalityVersion'] = $_.gPCFunctionalityVersion
+                $Output['Created'] = $_.Created
+                $Output['Modified'] = $_.Modified
+                $Output['GPOCanonicalName'] = $_.CanonicalName
+                $Output['GPODomainDistinguishedName'] = ConvertFrom-DistinguishedName -DistinguishedName $_.DistinguishedName -ToDC
+                $Output['GPODistinguishedName'] = $_.DistinguishedName
+                [PSCustomObject] $Output
+
+                <#
+                    CanonicalName            : ad.evotec.xyz/System/Policies/{31B2F340-016D-11D2-945F-00C04FB984F9}
+                    Created                  : 20.05.2018 09:55:29
+                    Description              :
+                    DisplayName              : Default Domain Policy
+                    DistinguishedName        : CN={31B2F340-016D-11D2-945F-00C04FB984F9},CN=Policies,CN=System,DC=ad,DC=evotec,DC=xyz
+                    gPCFileSysPath           : \\ad.evotec.xyz\sysvol\ad.evotec.xyz\Policies\{31B2F340-016D-11D2-945F-00C04FB984F9}
+                    gPCFunctionalityVersion  : 2
+                    gPCMachineExtensionNames : [{35378EAC-683F-11D2-A89A-00C04FBBCFA2}{53D6AB1B-2488-11D1-A28C-00C04FB94F17}][{827D319E-6EAC-11D2-A4EA-00C04F79F83A}{803E14A0-B4FB-11D0-A0D0-00A0C90F574B}][{B1BE8D72-6EAC-11D2-A4EA-00C04F79F83A}{53D6AB1B-2488-11D1-A28C-00C04FB94F17}]
+                    Modified                 : 26.04.2020 18:53:56
+                    Name                     : {31B2F340-016D-11D2-945F-00C04FB984F9}
+                    ObjectClass              : groupPolicyContainer
+                    ObjectGUID               : 679a6dd9-30fb-438c-a35f-e5fe8167703e
+                    #>
+                #}
+            }
+        }
+    }
+    End {
+
+    }
+}

Public/Get-GPOZaurrBackupInformation.ps1

@@ -11,15 +11,15 @@
             if ($Folder) {
                 if ((Test-Path -LiteralPath "$Folder\manifest.xml")) {
                     [xml] $Xml = Get-Content -LiteralPath "$Folder\manifest.xml"
-                    $Xml.Backups.BackupInst | ForEach-Object {
+                    $Xml.Backups.BackupInst | ForEach-Object -Process {
                         [PSCustomObject] @{
                             DisplayName      = $_.GPODisplayName.'#cdata-section'
                             DomainName       = $_.GPODomain.'#cdata-section'
-                            Guid             = $_.GPOGUid.'#cdata-section'
-                            DomainGuid       = $_.GPODomainGuid.'#cdata-section'
+                            Guid             = $_.GPOGUid.'#cdata-section' -replace '{' -replace '}'
+                            DomainGuid       = $_.GPODomainGuid.'#cdata-section' -replace '{' -replace '}'
                             DomainController = $_.GPODomainController.'#cdata-section'
-                            BackupTime       = $_.BackupTime.'#cdata-section'
-                            ID               = $_.ID.'#cdata-section'
+                            BackupTime       = [DateTime]::Parse($_.BackupTime.'#cdata-section')
+                            ID               = $_.ID.'#cdata-section' -replace '{' -replace '}'
                             Comment          = $_.Comment.'#cdata-section'
                         }
                     }

Public/Get-GPOZaurrLink.ps1

@@ -1,18 +1,42 @@
 function Get-GPOZaurrLink {
     [cmdletbinding()]
     param(
-        [parameter(ValueFromPipeline, ValueFromPipelineByPropertyName)][Microsoft.ActiveDirectory.Management.ADObject[]] $ADObject,
+        [parameter(ParameterSetName = 'ADObject', ValueFromPipeline, ValueFromPipelineByPropertyName, Mandatory)][Microsoft.ActiveDirectory.Management.ADObject[]] $ADObject,
+        # weirdly enough site doesn't really work this way unless you give it 'CN=Configuration,DC=ad,DC=evotec,DC=xyz' as SearchBase
+        [parameter(ParameterSetName = 'Filter')][string] $Filter = "(objectClass -eq 'organizationalUnit' -or objectClass -eq 'domainDNS' -or objectClass -eq 'site')",
+        [parameter(ParameterSetName = 'Filter')][string] $SearchBase,
+        [parameter(ParameterSetName = 'Filter')][Microsoft.ActiveDirectory.Management.ADSearchScope] $SearchScope,
+
+        [parameter(ParameterSetName = 'Linked',Mandatory)][validateset('Root', 'DomainControllers', 'Site', 'Other')][string] $Linked,
+
+        [parameter(ParameterSetName = 'Filter')]
+        [parameter(ParameterSetName = 'ADObject')]
+        [parameter(ParameterSetName = 'Linked')]
         [switch] $Limited,
+
+        [parameter(ParameterSetName = 'Filter')]
+        [parameter(ParameterSetName = 'ADObject')]
+        [parameter(ParameterSetName = 'Linked')]
         [System.Collections.IDictionary] $GPOCache,
 
-        [string] $Filter = '*',
-        [string] $SearchBase,
-        [Microsoft.ActiveDirectory.Management.ADSearchScope] $SearchScope,
-
-
+        [parameter(ParameterSetName = 'Filter')]
+        [parameter(ParameterSetName = 'ADObject')]
+        [parameter(ParameterSetName = 'Linked')]
         [alias('ForestName')][string] $Forest,
+
+        [parameter(ParameterSetName = 'Filter')]
+        [parameter(ParameterSetName = 'ADObject')]
+        [parameter(ParameterSetName = 'Linked')]
         [string[]] $ExcludeDomains,
+
+        [parameter(ParameterSetName = 'Filter')]
+        [parameter(ParameterSetName = 'ADObject')]
+        [parameter(ParameterSetName = 'Linked')]
         [alias('Domain', 'Domains')][string[]] $IncludeDomains,
+
+        [parameter(ParameterSetName = 'Filter')]
+        [parameter(ParameterSetName = 'ADObject')]
+        [parameter(ParameterSetName = 'Linked')]
         [System.Collections.IDictionary] $ExtendedForestInformation
     )
     Begin {
@@ -22,34 +46,102 @@
             foreach ($Domain in $ForestInformation.Domains) {
                 $QueryServer = $ForestInformation['QueryServers'][$Domain]['HostName'][0]
                 Get-GPO -All -DomainName $Domain -Server $QueryServer | ForEach-Object {
-                    $GPOCache[$_.ID.Guid] = $_
+                    $GPOCache["$Domain$($_.ID.Guid)"] = $_
                 }
             }
         }
     }
     Process {
         if (-not $ADObject) {
-            foreach ($Domain in $ForestInformation.Domains) {
-                $Splat = @{
-                    Filter     = $Filter
-                    Properties = 'distinguishedName', 'gplink', 'CanonicalName'
-                    Server     = $ForestInformation['QueryServers'][$Domain]['HostName'][0]
-                }
-                if ($PSBoundParameters.ContainsKey('SearchBase')) {
-                    $DomainDistinguishedName = $ForestInformation['DomainsExtended'][$Domain]['DistinguishedName']
-                    if ($SearchBase -notlike "*$DomainDistinguishedName") {
-                        # we check if SearchBase is part of domain distinugishname. If it isn't we skip
-                        continue
+            if ($Linked) {
+                foreach ($Domain in $ForestInformation.Domains) {
+                    $Splat = @{
+                        #Filter     = $Filter
+                        Properties = 'distinguishedName', 'gplink', 'CanonicalName'
+                       # Filter     = "(objectClass -eq 'organizationalUnit' -or objectClass -eq 'domainDNS' -or objectClass -eq 'site')"
+                        Server     = $ForestInformation['QueryServers'][$Domain]['HostName'][0]
+                    }
+                    if ($Linked -contains 'DomainControllers') {
+                        $SearchBase = $ForestInformation['DomainsExtended'][$Domain]['DomainControllersContainer']
+                        #if ($SearchBase -notlike "*$DomainDistinguishedName") {
+                        # we check if SearchBase is part of domain distinugishname. If it isn't we skip
+                        #    continue
+                        #}
+                        $Splat['Filter'] = "(objectClass -eq 'organizationalUnit')"
+                        $Splat['SearchBase'] = $SearchBase
+                        Get-ADObject @Splat | ForEach-Object -Process {
+                            Get-PrivGPOZaurrLink -Object $_ -Limited:$Limited.IsPresent -GPOCache $GPOCache
+                        }
+                    }
+                    if ($Linked -contains 'Root') {
+                        $SearchBase = $ForestInformation['DomainsExtended'][$Domain]['DistinguishedName']
+                        #if ($SearchBase -notlike "*$DomainDistinguishedName") {
+                        # we check if SearchBase is part of domain distinugishname. If it isn't we skip
+                        #    continue
+                        # }
+                        $Splat['Filter'] = "objectClass -eq 'domainDNS'"
+                        $Splat['SearchBase'] = $SearchBase
+                        Get-ADObject @Splat | ForEach-Object -Process {
+                            Get-PrivGPOZaurrLink -Object $_ -Limited:$Limited.IsPresent -GPOCache $GPOCache
+                        }
+                    }
+                    if ($Linked -contains 'Site') {
+                        # Sites are defined only in primary domain
+                        if ($ForestInformation['DomainsExtended'][$Domain]['DNSRoot'] -eq $ForestInformation['DomainsExtended'][$Domain]['Forest']) {
+                            $SearchBase = -join ("CN=Configuration,", $ForestInformation['DomainsExtended'][$Domain]['DistinguishedName'])
+                            # if ($SearchBase -notlike "*$DomainDistinguishedName") {
+                            # we check if SearchBase is part of domain distinugishname. If it isn't we skip
+                            #continue
+                            #}
+                            $Splat['Filter'] = "(objectClass -eq 'site')"
+                            $Splat['SearchBase'] = $SearchBase
+                            Get-ADObject @Splat | ForEach-Object -Process {
+                                Get-PrivGPOZaurrLink -Object $_ -Limited:$Limited.IsPresent -GPOCache $GPOCache
+                            }
+                        }
+                    }
+                    if ($Linked -contains 'Other') {
+                        $SearchBase = $ForestInformation['DomainsExtended'][$Domain]['DistinguishedName']
+                        #if ($SearchBase -notlike "*$DomainDistinguishedName") {
+                            # we check if SearchBase is part of domain distinugishname. If it isn't we skip
+                        #    continue
+                        #}
+                        $Splat['Filter'] = "(objectClass -eq 'organizationalUnit')"
+                        $Splat['SearchBase'] = $SearchBase
+                        Get-ADObject @Splat | ForEach-Object -Process {
+                            if ($_.DistinguishedName -eq $ForestInformation['DomainsExtended'][$Domain]['DistinguishedName']) {
+                                # other skips Domain Root
+                            } elseif ($_.DistinguishedName -eq $ForestInformation['DomainsExtended'][$Domain]['DomainControllersContainer']) {
+                                # other skips Domain Controllers
+                            } else {
+                                Get-PrivGPOZaurrLink -Object $_ -Limited:$Limited.IsPresent -GPOCache $GPOCache
+                            }
+                        }
                     }
-                    $Splat['SearchBase'] = $SearchBase
-
-                }
-                if ($PSBoundParameters.ContainsKey('SearchScope')) {
-                    $Splat['SearchScope'] = $SearchScope
                 }
+            } else {
+                foreach ($Domain in $ForestInformation.Domains) {
+                    $Splat = @{
+                        Filter     = $Filter
+                        Properties = 'distinguishedName', 'gplink', 'CanonicalName'
+                        Server     = $ForestInformation['QueryServers'][$Domain]['HostName'][0]
+                    }
+                    if ($PSBoundParameters.ContainsKey('SearchBase')) {
+                        $DomainDistinguishedName = $ForestInformation['DomainsExtended'][$Domain]['DistinguishedName']
+                        if ($SearchBase -notlike "*$DomainDistinguishedName") {
+                            # we check if SearchBase is part of domain distinugishname. If it isn't we skip
+                            continue
+                        }
+                        $Splat['SearchBase'] = $SearchBase
 
-                Get-ADObject @Splat | ForEach-Object {
-                    Get-PrivGPOZaurrLink -Object $_ -Limited:$Limited.IsPresent -GPOCache $GPOCache
+                    }
+                    if ($PSBoundParameters.ContainsKey('SearchScope')) {
+                        $Splat['SearchScope'] = $SearchScope
+                    }
+
+                    Get-ADObject @Splat | ForEach-Object {
+                        Get-PrivGPOZaurrLink -Object $_ -Limited:$Limited.IsPresent -GPOCache $GPOCache
+                    }
                 }
             }
         } else {

Public/Get-GPOZaurrOwner.ps1

@@ -0,0 +1,58 @@
+function Get-GPOZaurrOwner {
+    [cmdletbinding(DefaultParameterSetName = 'Default')]
+    param(
+        [Parameter(ParameterSetName = 'GPOName')][string] $GPOName,
+        [Parameter(ParameterSetName = 'GPOGUID')][alias('GUID', 'GPOID')][string] $GPOGuid,
+
+        [switch] $IncludeSysvol,
+
+        [alias('ForestName')][string] $Forest,
+        [string[]] $ExcludeDomains,
+        [alias('Domain', 'Domains')][string[]] $IncludeDomains,
+        [System.Collections.IDictionary] $ExtendedForestInformation,
+        [System.Collections.IDictionary] $ADAdministrativeGroups
+    )
+    Begin {
+        $ForestInformation = Get-WinADForestDetails -Extended -Forest $Forest -IncludeDomains $IncludeDomains -ExcludeDomains $ExcludeDomains -ExtendedForestInformation $ExtendedForestInformation
+        if (-not $ADAdministrativeGroups) {
+            $ADAdministrativeGroups = Get-ADADministrativeGroups -Type DomainAdmins, EnterpriseAdmins -Forest $Forest -IncludeDomains $IncludeDomains -ExcludeDomains $ExcludeDomains -ExtendedForestInformation $ExtendedForestInformation
+        }
+    }
+    Process {
+        $getGPOZaurrADSplat = @{
+            Forest                    = $Forest
+            IncludeDomains            = $IncludeDomains
+            ExcludeDomains            = $ExcludeDomains
+            ExtendedForestInformation = $ForestInformation
+        }
+        if ($GPOName) {
+            $getGPOZaurrADSplat['GPOName'] = $GPOName
+        } elseif ($GPOGuid) {
+            $getGPOZaurrADSplat['GPOGUID'] = $GPOGuid
+        }
+        Get-GPOZaurrAD @getGPOZaurrADSplat | ForEach-Object -Process {
+            Write-Verbose "Get-GPOZaurrOwner - Processing GPO: $($_.DisplayName) from domain: $($_.DomainName)"
+            $ACL = Get-ADACLOwner -ADObject $_.GPODistinguishedName -Resolve -ADAdministrativeGroups $ADAdministrativeGroups
+            $Object = [ordered] @{
+                DisplayName       = $_.DisplayName
+                DomainName        = $_.DomainName
+                GUID              = $_.GUID
+                DistinguishedName = $_.GPODistinguishedName
+                Owner             = $ACL.OwnerName
+                OwnerSid          = $ACL.OwnerSid
+                OwnerType         = $ACL.OwnerType
+            }
+            if ($IncludeSysvol) {
+                $FileOwner = Get-FileOwner -JustPath -Path $_.Path -Resolve
+                $Object['SysvolOwner'] = $FileOwner.OwnerName
+                $Object['SysvolSid'] = $FileOwner.OwnerSid
+                $Object['SysvolType'] = $FileOwner.OwnerType
+                $Object['SysvolPath'] = $_.Path
+            }
+            [PSCUstomObject] $Object
+        }
+    }
+    End {
+
+    }
+}

Public/Get-GPOZaurrPermission.ps1

@@ -7,7 +7,10 @@
         [Parameter(ParameterSetName = 'GPOGUID')]
         [alias('GUID', 'GPOID')][string] $GPOGuid,
 
-        [validateSet('Unknown', 'All')][string[]] $Type = 'All',
+        [string[]] $Principal,
+        [validateset('DistinguishedName', 'Name', 'Sid')][string] $PrincipalType = 'Sid',
+
+        [validateSet('Unknown', 'NotWellKnown', 'NotWellKnownAdministrative', 'NotAdministrative', 'Administrative', 'All')][string[]] $Type = 'All',
 
         [switch] $SkipWellKnown,
         [switch] $SkipAdministrative,
@@ -48,24 +51,49 @@
                 }
             }
         }
-
     }
     Process {
         foreach ($Domain in $ForestInformation.Domains) {
             $QueryServer = $ForestInformation['QueryServers'][$Domain]['HostName'][0]
             if ($GPOName) {
-                Get-GPO -Name $GPOName -Domain $Domain -Server $QueryServer -ErrorAction SilentlyContinue | ForEach-Object -Process {
-                    Get-PrivPermission -Accounts $Accounts -Type $Type -GPO $_ -SkipWellKnown:$SkipWellKnown.IsPresent -SkipAdministrative:$SkipAdministrative.IsPresent -IncludeOwner:$IncludeOwner.IsPresent -IncludeGPOObject:$IncludeGPOObject.IsPresent -IncludePermissionType $IncludePermissionType -ExcludePermissionType $ExcludePermissionType -ADAdministrativeGroups $ADAdministrativeGroups
+                $getGPOSplat = @{
+                    Name        = $GPOName
+                    Domain      = $Domain
+                    Server      = $QueryServer
+                    ErrorAction = 'SilentlyContinue'
                 }
             } elseif ($GPOGuid) {
-                Get-GPO -Guid $GPOGuid -Domain $Domain -Server $QueryServer -ErrorAction SilentlyContinue | ForEach-Object -Process {
-                    Get-PrivPermission -Accounts $Accounts -Type $Type -GPO $_ -SkipWellKnown:$SkipWellKnown.IsPresent -SkipAdministrative:$SkipAdministrative.IsPresent -IncludeOwner:$IncludeOwner.IsPresent -IncludeGPOObject:$IncludeGPOObject.IsPresent -IncludePermissionType $IncludePermissionType -ExcludePermissionType $ExcludePermissionType -ADAdministrativeGroups $ADAdministrativeGroups
+                $getGPOSplat = @{
+                    Guid        = $GPOGuid
+                    Domain      = $Domain
+                    Server      = $QueryServer
+                    ErrorAction = 'SilentlyContinue'
                 }
             } else {
-                Get-GPO -All -Domain $Domain -Server $QueryServer | ForEach-Object -Process {
-                    Get-PrivPermission -Accounts $Accounts -Type $Type -GPO $_ -SkipWellKnown:$SkipWellKnown.IsPresent -SkipAdministrative:$SkipAdministrative.IsPresent -IncludeOwner:$IncludeOwner.IsPresent -IncludeGPOObject:$IncludeGPOObject.IsPresent -IncludePermissionType $IncludePermissionType -ExcludePermissionType $ExcludePermissionType -ADAdministrativeGroups $ADAdministrativeGroups
+                $getGPOSplat = @{
+                    All         = $true
+                    Domain      = $Domain
+                    Server      = $QueryServer
+                    ErrorAction = 'SilentlyContinue'
                 }
             }
+            Get-GPO @getGPOSplat | ForEach-Object -Process {
+                $getPrivPermissionSplat = @{
+                    Principal              = $Principal
+                    PrincipalType          = $PrincipalType
+                    Accounts               = $Accounts
+                    Type                   = $Type
+                    GPO                    = $_
+                    SkipWellKnown          = $SkipWellKnown.IsPresent
+                    SkipAdministrative     = $SkipAdministrative.IsPresent
+                    IncludeOwner           = $IncludeOwner.IsPresent
+                    IncludeGPOObject       = $IncludeGPOObject.IsPresent
+                    IncludePermissionType  = $IncludePermissionType
+                    ExcludePermissionType  = $ExcludePermissionType
+                    ADAdministrativeGroups = $ADAdministrativeGroups
+                }
+                Get-PrivPermission @getPrivPermissionSplat
+            }
         }
     }
     End {

Public/Get-GPOZaurrPermissionConsistency.ps1

@@ -0,0 +1,214 @@
+function Get-GPOZaurrPermissionConsistency {
+    [cmdletBinding()]
+    param(
+        [Parameter(ParameterSetName = 'GPOName')][string] $GPOName,
+        [Parameter(ParameterSetName = 'GPOGUID')][alias('GUID', 'GPOID')][string] $GPOGuid,
+        [Parameter(ParameterSetName = 'Type')][validateSet('Consistent', 'Inconsistent', 'All')][string[]] $Type = 'All',
+        [alias('ForestName')][string] $Forest,
+        [string[]] $ExcludeDomains,
+        [alias('Domain', 'Domains')][string[]] $IncludeDomains,
+        [System.Collections.IDictionary] $ExtendedForestInformation,
+        [switch] $IncludeGPOObject,
+        [switch] $VerifyInside
+    )
+    Begin {
+        $ForestInformation = Get-WinADForestDetails -Forest $Forest -IncludeDomains $IncludeDomains -ExcludeDomains $ExcludeDomains -ExtendedForestInformation $ExtendedForestInformation
+    }
+    Process {
+        foreach ($Domain in $ForestInformation.Domains) {
+            $QueryServer = $ForestInformation['QueryServers'][$Domain]['HostName'][0]
+            if ($GPOName) {
+                $getGPOSplat = @{
+                    Name        = $GPOName
+                    Domain      = $Domain
+                    Server      = $QueryServer
+                    ErrorAction = 'SilentlyContinue'
+                }
+            } elseif ($GPOGuid) {
+                $getGPOSplat = @{
+                    Guid        = $GPOGuid
+                    Domain      = $Domain
+                    Server      = $QueryServer
+                    ErrorAction = 'SilentlyContinue'
+                }
+            } else {
+                $getGPOSplat = @{
+                    All         = $true
+                    Domain      = $Domain
+                    Server      = $QueryServer
+                    ErrorAction = 'SilentlyContinue'
+                }
+            }
+            Get-GPO @getGPOSplat | ForEach-Object -Process {
+                try {
+                    $IsConsistent = $_.IsAclConsistent()
+                    $ErrorMessage = ''
+                } catch {
+                    $ErrorMessage = $_.Exception.Message
+                    Write-Warning "Get-GPOZaurrPermissionConsistency - Failed to get consistency: $($_.Exception.Message)."
+                    $IsConsistent = 'Not available.'
+                }
+                $SysVolpath = -join ('\\', $Domain, '\sysvol\', $Domain, '\Policies\{', $_.ID.GUID, '}')
+                if ($VerifyInside) {
+                    $FolderPermissions = Get-WinADSharePermission -Path $SysVolpath
+                    [Array] $NotInheritedPermissions = foreach ($File in $FolderPermissions) {
+                        if ($File.Path -ne $SysVolpath -and $File.IsInherited -eq $false) {
+                            $File
+                        }
+                    }
+                    if ($NotInheritedPermissions.Count -eq 0) {
+                        $ACLConsistentInside = $true
+                    } else {
+                        $ACLConsistentInside = $false
+                    }
+                } else {
+                    $ACLConsistentInside = $null
+                }
+                $Object = [ordered] @{
+                    DisplayName         = $_.DisplayName     # : New Group Policy Object
+                    DomainName          = $_.DomainName      # : ad.evotec.xyz
+                    ACLConsistent       = $IsConsistent
+                    ACLConsistentInside = $ACLConsistentInside
+                    Owner               = $_.Owner           # : EVOTEC\Enterprise Admins
+                    Path                = $_.Path
+                    SysVolPath          = $SysvolPath
+                    Id                  = $_.Id              # : 8a7bc515-d7fd-4d1f-90b8-e47c15f89295
+                    GpoStatus           = $_.GpoStatus       # : AllSettingsEnabled
+                    Description         = $_.Description     # :
+                    CreationTime        = $_.CreationTime    # : 04.03.2020 17:19:42
+                    ModificationTime    = $_.ModificationTime# : 06.05.2020 10:30:36
+                    UserVersion         = $_.UserVersion     # : AD Version: 0, SysVol Version: 0
+                    ComputerVersion     = $_.ComputerVersion # : AD Version: 1, SysVol Version: 1
+                    WmiFilter           = $_.WmiFilter       # :
+                    Error               = $ErrorMessage
+                }
+                if ($IncludeGPOObject) {
+                    $Object['IncludeGPOObject'] = $_
+                }
+                if ($VerifyInside) {
+                    $Object['ACLConsistentInsideDetails'] = $NotInheritedPermissions
+                }
+                [PSCustomObject] $Object
+            }
+            <#
+            } elseif ($GPOGuid) {
+                Get-GPO -Guid $GPOGuid -Domain $Domain -Server $QueryServer -ErrorAction SilentlyContinue | ForEach-Object -Process {
+                    try {
+                        $IsConsistent = $_.IsAclConsistent()
+                        $ErrorMessage = ''
+                    } catch {
+                        $ErrorMessage = $_.Exception.Message
+                        Write-Warning "Get-GPOZaurrPermissionConsistency - Failed to get consistency: $($_.Exception.Message)."
+                        $IsConsistent = 'Not available.'
+                    }
+                    $SysVolpath = -join ('\\', $Domain, '\sysvol\', $Domain, '\Policies\{', $_.ID.GUID, '}')
+                    if ($Advanced) {
+                        $FolderPermissions = Get-WinADSharePermission -Path $SysVolpath
+                        [Array] $NotInheritedPermissions = foreach ($File in $FolderPermissions) {
+                            if ($File.Path -ne $SysVolpath -and $File.IsInherited -eq $false) {
+                                $File
+                            }
+                        }
+                        if ($NotInheritedPermissions.Count -eq 0) {
+                            $ACLConsistentInside = $true
+                        } else {
+                            $ACLConsistentInside = $false
+                        }
+                    } else {
+                        $ACLConsistentInside = $null
+                    }
+                    $Object = [ordered] @{
+                        DisplayName         = $_.DisplayName     # : New Group Policy Object
+                        DomainName          = $_.DomainName      # : ad.evotec.xyz
+                        ACLConsistent       = $IsConsistent
+                        ACLConsistentInside = $ACLConsistentInside
+                        Owner               = $_.Owner           # : EVOTEC\Enterprise Admins
+                        Path                = $_.Path
+                        SysVolPath          = $SysvolPath
+                        Id                  = $_.Id              # : 8a7bc515-d7fd-4d1f-90b8-e47c15f89295
+                        GpoStatus           = $_.GpoStatus       # : AllSettingsEnabled
+                        Description         = $_.Description     # :
+                        CreationTime        = $_.CreationTime    # : 04.03.2020 17:19:42
+                        ModificationTime    = $_.ModificationTime# : 06.05.2020 10:30:36
+                        UserVersion         = $_.UserVersion     # : AD Version: 0, SysVol Version: 0
+                        ComputerVersion     = $_.ComputerVersion # : AD Version: 1, SysVol Version: 1
+                        WmiFilter           = $_.WmiFilter       # :
+                        Error               = $ErrorMessage
+                    }
+                    if ($Advanced) {
+                        $Object['ACLConsistentInsideDetails'] = $NotInheritedPermissions
+                    }
+                    if ($IncludeGPOObject) {
+                        $Object['IncludeGPOObject'] = $_
+                    }
+                    [PSCustomObject] $Object
+                }
+            } else {
+                Get-GPO -All -Domain $Domain -Server $QueryServer | ForEach-Object -Process {
+                    try {
+                        $IsConsistent = $_.IsAclConsistent()
+                        $ErrorMessage = ''
+                    } catch {
+                        $ErrorMessage = $_.Exception.Message
+                        Write-Warning "Get-GPOZaurrPermissionConsistency - Failed to get consistency: $($_.Exception.Message)."
+                        $IsConsistent = 'Not available.'
+                    }
+                    if ($Type -eq 'Consistent') {
+                        if (-not $IsConsistent) {
+                            return
+                        }
+                    } elseif ($Type -eq 'Inconsistent') {
+                        if ($IsConsistent -eq $true) {
+                            return
+                        }
+                    }
+                    $SysVolpath = -join ('\\', $Domain, '\sysvol\', $Domain, '\Policies\{', $_.ID.GUID, '}')
+                    if ($Advanced) {
+                        $FolderPermissions = Get-WinADSharePermission -Path $SysVolpath
+                        [Array] $NotInheritedPermissions = foreach ($File in $FolderPermissions) {
+                            if ($File.Path -ne $SysVolpath -and $File.IsInherited -eq $false) {
+                                $File
+                            }
+                        }
+                        if ($NotInheritedPermissions.Count -eq 0) {
+                            $ACLConsistentInside = $true
+                        } else {
+                            $ACLConsistentInside = $false
+                        }
+                    } else {
+                        $ACLConsistentInside = $null
+                    }
+                    $Object = [ordered] @{
+                        DisplayName         = $_.DisplayName     # : New Group Policy Object
+                        DomainName          = $_.DomainName      # : ad.evotec.xyz
+                        ACLConsistent       = $IsConsistent
+                        ACLConsistentInside = $ACLConsistentInside
+                        Owner               = $_.Owner           # : EVOTEC\Enterprise Admins
+                        Path                = $_.Path
+                        SysVolPath          = $SysvolPath
+                        Id                  = $_.Id              # : 8a7bc515-d7fd-4d1f-90b8-e47c15f89295
+                        GpoStatus           = $_.GpoStatus       # : AllSettingsEnabled
+                        Description         = $_.Description     # :
+                        CreationTime        = $_.CreationTime    # : 04.03.2020 17:19:42
+                        ModificationTime    = $_.ModificationTime# : 06.05.2020 10:30:36
+                        UserVersion         = $_.UserVersion     # : AD Version: 0, SysVol Version: 0
+                        ComputerVersion     = $_.ComputerVersion # : AD Version: 1, SysVol Version: 1
+                        WmiFilter           = $_.WmiFilter       # :
+                        Error               = $ErrorMessage
+                    }
+                    if ($Advanced) {
+                        $Object['ACLConsistentInsideDetails'] = $NotInheritedPermissions
+                    }
+                    if ($IncludeGPOObject) {
+                        $Object['IncludeGPOObject'] = $_
+                    }
+                    [PSCustomObject] $Object
+                }
+            }
+            #>
+        }
+    }
+    End {
+
+    }
+}

Public/Invoke-GPOZaurrPermission.ps1

@@ -0,0 +1,229 @@
+function Invoke-GPOZaurrPermission {
+    [cmdletBinding(SupportsShouldProcess)]
+    param(
+        [Parameter(ParameterSetName = 'GPOGUID')]
+        [Parameter(ParameterSetName = 'GPOName')]
+        [parameter(ParameterSetName = 'Filter')]
+        [parameter(ParameterSetName = 'ADObject')]
+        [parameter(ParameterSetName = 'Linked')]
+        [parameter(Position = 0)]
+        [scriptblock] $PermissionRules,
+
+        [Parameter(ParameterSetName = 'GPOName')][string] $GPOName,
+
+        [Parameter(ParameterSetName = 'GPOGUID')][alias('GUID', 'GPOID')][string] $GPOGuid,
+
+
+        [parameter(ParameterSetName = 'Linked', Mandatory)][validateset('Root', 'DomainControllers', 'Site', 'Other')][string] $Linked,
+
+        [parameter(ParameterSetName = 'ADObject', ValueFromPipeline, ValueFromPipelineByPropertyName, Mandatory)][Microsoft.ActiveDirectory.Management.ADObject[]] $ADObject,
+
+        [parameter(ParameterSetName = 'Filter')][string] $Filter = "(objectClass -eq 'organizationalUnit' -or objectClass -eq 'domainDNS' -or objectClass -eq 'site')",
+        [parameter(ParameterSetName = 'Filter')][string] $SearchBase,
+        [parameter(ParameterSetName = 'Filter')][Microsoft.ActiveDirectory.Management.ADSearchScope] $SearchScope,
+
+        [Parameter(ParameterSetName = 'GPOGUID')]
+        [Parameter(ParameterSetName = 'GPOName')]
+        [parameter(ParameterSetName = 'Filter')]
+        [parameter(ParameterSetName = 'ADObject')]
+        [parameter(ParameterSetName = 'Linked')]
+        [validateSet('Unknown', 'NotWellKnown', 'NotWellKnownAdministrative', 'NotAdministrative', 'All')][string[]] $Type,
+
+        [Parameter(ParameterSetName = 'GPOGUID')]
+        [Parameter(ParameterSetName = 'GPOName')]
+        [parameter(ParameterSetName = 'Filter')]
+        [parameter(ParameterSetName = 'ADObject')]
+        [parameter(ParameterSetName = 'Linked')]
+        [Array] $ApprovedGroups,
+
+        [Parameter(ParameterSetName = 'GPOGUID')]
+        [Parameter(ParameterSetName = 'GPOName')]
+        [parameter(ParameterSetName = 'Filter')]
+        [parameter(ParameterSetName = 'ADObject')]
+        [parameter(ParameterSetName = 'Linked')]
+        [alias('Principal')][Array] $Trustee,
+
+        [Parameter(ParameterSetName = 'GPOGUID')]
+        [Parameter(ParameterSetName = 'GPOName')]
+        [parameter(ParameterSetName = 'Filter')]
+        [parameter(ParameterSetName = 'ADObject')]
+        [parameter(ParameterSetName = 'Linked')]
+        [Microsoft.GroupPolicy.GPPermissionType] $TrusteePermissionType,
+
+        [Parameter(ParameterSetName = 'GPOGUID')]
+        [Parameter(ParameterSetName = 'GPOName')]
+        [parameter(ParameterSetName = 'Filter')]
+        [parameter(ParameterSetName = 'ADObject')]
+        [parameter(ParameterSetName = 'Linked')]
+        [alias('PrincipalType')][validateset('DistinguishedName', 'Name', 'Sid')][string] $TrusteeType = 'DistinguishedName',
+
+        [Parameter(ParameterSetName = 'GPOGUID')]
+        [Parameter(ParameterSetName = 'GPOName')]
+        [parameter(ParameterSetName = 'Filter')]
+        [parameter(ParameterSetName = 'ADObject')]
+        [parameter(ParameterSetName = 'Linked')]
+        [System.Collections.IDictionary] $GPOCache,
+
+        [Parameter(ParameterSetName = 'GPOGUID')]
+        [Parameter(ParameterSetName = 'GPOName')]
+        [parameter(ParameterSetName = 'Filter')]
+        [parameter(ParameterSetName = 'ADObject')]
+        [parameter(ParameterSetName = 'Linked')]
+        [alias('ForestName')][string] $Forest,
+
+        [Parameter(ParameterSetName = 'GPOGUID')]
+        [Parameter(ParameterSetName = 'GPOName')]
+        [parameter(ParameterSetName = 'Filter')]
+        [parameter(ParameterSetName = 'ADObject')]
+        [parameter(ParameterSetName = 'Linked')]
+        [string[]] $ExcludeDomains,
+
+        [Parameter(ParameterSetName = 'GPOGUID')]
+        [Parameter(ParameterSetName = 'GPOName')]
+        [parameter(ParameterSetName = 'Filter')]
+        [parameter(ParameterSetName = 'ADObject')]
+        [parameter(ParameterSetName = 'Linked')]
+        [alias('Domain', 'Domains')][string[]] $IncludeDomains,
+
+        [Parameter(ParameterSetName = 'GPOGUID')]
+        [Parameter(ParameterSetName = 'GPOName')]
+        [parameter(ParameterSetName = 'Filter')]
+        [parameter(ParameterSetName = 'ADObject')]
+        [parameter(ParameterSetName = 'Linked')]
+        [System.Collections.IDictionary] $ExtendedForestInformation
+    )
+    Begin {
+        $ADAdministrativeGroups = Get-ADADministrativeGroups -Type DomainAdmins, EnterpriseAdmins -Forest $Forest -IncludeDomains $IncludeDomains -ExcludeDomains $ExcludeDomains -ExtendedForestInformation $ExtendedForestInformation
+        <#
+        $Script:Actions = @{
+            GpoApply                    = @{
+                Remove = @{
+                    NotAdministrative          = $false
+                    NotWellKnownAdministrative = $false
+                }
+                Add    = @{
+                    Administrative          = $false
+                    WellKnownAdministrative = $false
+                }
+            }
+            GpoRead                     = @{
+                Remove = @{
+                    NotAdministrative          = $false
+                    NotWellKnownAdministrative = $false
+                }
+                Add    = @{
+                    Administrative          = $false
+                    WellKnownAdministrative = $false
+                }
+            }
+            GpoCustom                   = @{
+                Remove = @{
+                    NotAdministrative          = $false
+                    NotWellKnownAdministrative = $false
+                }
+                Add    = @{
+                    Administrative          = $false
+                    WellKnownAdministrative = $false
+                }
+            }
+            GpoEditDeleteModifySecurity = @{
+                Remove = @{
+                    NotAdministrative          = $false
+                    NotWellKnownAdministrative = $false
+                }
+                Add    = @{
+                    Administrative          = $false
+                    WellKnownAdministrative = $false
+                }
+            }
+            GpoEdit                     = @{
+                Remove = @{
+                    NotAdministrative          = $false
+                    NotWellKnownAdministrative = $false
+                }
+                Add    = @{
+                    Administrative          = $false
+                    WellKnownAdministrative = $false
+                }
+            }
+        }
+        #>
+    }
+    Process {
+
+        if ($PermissionRules) {
+            $Rules = & $PermissionRules
+            <#
+            foreach ($Rule in $Rules) {
+
+                #$Actions["$Rule."]
+
+                if ($Rule.Action -eq 'Remove' -and $Rule.Type -contains 'NotWellKnownAdministrative') {
+                    #$Actions.NotWellKnownAdministrative = $true
+                }
+                if ($Rule.Action -eq 'Remove' -and $Rule.Type -contains 'NotAdministrative') {
+                    #$Actions.Remove.NotAdministrative = $true
+                }
+            }
+            #>
+        }
+
+        if ($GPOName -or $GPOGuid) {
+
+        } else {
+
+            $Splat = @{ }
+            if ($ADObject) {
+                $Splat['ADObject'] = $ADObject
+            } elseif ($Linked) {
+                $Splat['Linked'] = $Linked
+            } else {
+                if ($Filter) {
+                    $Splat['Filter'] = $Filter
+                }
+                if ($SearchBase) {
+                    $Splat['SearchBase'] = $SearchBase
+                }
+                if ($SearchScope) {
+                    $Splat['SearchScope'] = $SearchScope
+                }
+            }
+
+            Get-GPOZaurrLink @Splat | ForEach-Object -Process {
+                $GPO = $_
+                foreach ($Rule in $Rules) {
+                    if ($Rule.Action -eq 'Owner') {
+                        if ($Rule.Type -eq 'Administrative') {
+                            $AdministrativeGroup = $ADAdministrativeGroups['ByNetBIOS']["$($GPO.Owner)"]
+                            if (-not $AdministrativeGroup) {
+                                $DefaultPrincipal = $ADAdministrativeGroups["$($GPO.DomainName)"]['DomainAdmins']
+                                Write-Verbose "Set-GPOZaurrOwner - Changing GPO: $($GPO.DisplayName) from domain: $($GPO.DomainName) from owner $($GPO.Owner) to $DefaultPrincipal"
+                                Set-ADACLOwner -ADObject $GPO.GPODistinguishedName -Principal $DefaultPrincipal -Verbose:$false -WhatIf:$WhatIfPreference
+                            }
+                        } elseif ($Rule.Type -eq 'Default') {
+                            Write-Verbose "Set-GPOZaurrOwner - Changing GPO: $($GPO.DisplayName) from domain: $($GPO.DomainName) from owner $($GPO.Owner) to $($Rule.Principal)"
+                            Set-ADACLOwner -ADObject $GPO.GPODistinguishedName -Principal $Rule.Principal -Verbose:$false -WhatIf:$WhatIfPreference
+                        }
+                        continue
+                    }
+                    if ($Rule.Action -eq 'Remove') {
+                        $GPOPermissions = Get-GPOZaurrPermission -GPOGuid $_.GUID -IncludePermissionType $Rule.IncludePermissionType -ExcludePermissionType $Rule.ExcludePermissionType -Type $Rule.Type -IncludeGPOObject
+                        foreach ($Permission in $GPOPermissions) {
+                            Remove-PrivPermission -Principal $Permission.Sid -PrincipalType Sid -GPOPermission $Permission -IncludePermissionType $Permission.Permission #-IncludeDomains $GPO.DomainName
+                        }
+                        continue
+                    }
+                    if ($Rule.Action -eq 'Add') {
+                        #$GPOPermissions = Get-GPOZaurrPermission -GPOGuid $_.GUID -IncludePermissionType $Rule.IncludePermissionType -ExcludePermissionType $Rule.ExcludePermissionType -Type 'All' -IncludeGPOObject
+                        # foreach ($Permission in $GPOPermissions) {
+                        Add-GPOZaurrPermission -GPOGuid $_.GUID -IncludeDomains $GPO.DomainName -Type $Rule.Type -PermissionType $Rule.IncludePermissionType -ADAdministrativeGroups $ADAdministrativeGroups
+                        # }
+                    }
+                }
+            }
+        }
+    }
+    End {
+
+    }
+}

Public/Remove-GPOPermission.ps1

@@ -0,0 +1,45 @@
+function Remove-GPOPermission {
+    [cmdletBinding()]
+    param(
+        [validateSet('Unknown', 'NotWellKnown', 'NotWellKnownAdministrative', 'Administrative', 'NotAdministrative', 'All')][string[]] $Type,
+        [Microsoft.GroupPolicy.GPPermissionType[]] $IncludePermissionType,
+        [Microsoft.GroupPolicy.GPPermissionType[]] $ExcludePermissionType
+    )
+
+    if ($Type) {
+        @{
+            Action                = 'Remove'
+            Type                  = $Type
+            IncludePermissionType = $IncludePermissionType
+            ExcludePermissionType = $ExcludePermissionType
+        }
+    }
+    <#
+    foreach ($T in $Type) {
+        foreach ($Permission in $IncludePermissionType) {
+            if ($T -eq 'NotWellKnownAdministrative') {
+                $Script:Actions[$Permission][$T] = $true
+            } elseif ($T -eq 'NotAdministrative') {
+                $Script:Actions[$Permission][$T] = $true
+            }
+        }
+    }
+    #>
+}
+<#
+function Find-GPOPermission {
+    param(
+        $GPOPermissions,
+        [Microsoft.GroupPolicy.GPPermissionType[]] $IncludePermissionType,
+        [bool] $NotAdministrative,
+        [bool] $NotWellKnownAdministrative
+    )
+    foreach ($Permission in $GPOPermissions) {
+        if ($Permission.Permission -in $IncludePermissionType) {
+            if ($NotAdministrative -and $NotWellKnownAdministrative) {
+                $Permission
+            }
+        }
+    }
+}
+#>

Public/Remove-GPOZaurrPermission.ps1

@@ -7,18 +7,16 @@
         [Parameter(ParameterSetName = 'GPOGUID', Mandatory)]
         [alias('GUID', 'GPOID')][string] $GPOGuid,
 
-        [string] $Principal,
-        [validateset('DistinguishedName', 'Name', 'Sid')][string] $PrincipalType = 'DistinguishedName',
+        [string[]] $Principal,
+        [validateset('DistinguishedName', 'Name', 'Sid')][string] $PrincipalType = 'Sid',
 
-        [validateset('Unknown', 'Named', 'NonAdministrative', 'Default')][string[]] $Type = 'Default',
+        [validateset('Unknown', 'NotAdministrative', 'Default')][string[]] $Type = 'Default',
 
         [alias('PermissionType')][Microsoft.GroupPolicy.GPPermissionType[]] $IncludePermissionType,
         [Microsoft.GroupPolicy.GPPermissionType[]] $ExcludePermissionType,
         [switch] $SkipWellKnown,
         [switch] $SkipAdministrative,
 
-        [string[]]$NamedObjects,
-
         [alias('ForestName')][string] $Forest,
         [string[]] $ExcludeDomains,
         [alias('Domain', 'Domains')][string[]] $IncludeDomains,
@@ -28,37 +26,19 @@
     )
     Begin {
         $Count = 0
+        $ForestInformation = Get-WinADForestDetails -Forest $Forest -IncludeDomains $IncludeDomains -ExcludeDomains $ExcludeDomains -ExtendedForestInformation $ExtendedForestInformation
+        $ADAdministrativeGroups = Get-ADADministrativeGroups -Type DomainAdmins, EnterpriseAdmins -Forest $Forest -IncludeDomains $IncludeDomains -ExcludeDomains $ExcludeDomains -ExtendedForestInformation $ExtendedForestInformation
+        if ($Type -eq 'Unknown') {
+            if ($SkipAdministrative -or $SkipWellKnown) {
+                Write-Warning "Remove-GPOZaurrPermission - Using SkipAdministrative or SkipWellKnown while looking for Unknown doesn't make sense as only Unknown will be displayed."
+            }
+        }
     }
     Process {
-        if ($Type -contains 'Named' -and $NamedObjects.Count -eq 0) {
+        if ($Type -contains 'Named' -and $Principal.Count -eq 0) {
             Write-Warning "Remove-GPOZaurrPermission - When using type Named you need to provide names to remove. Terminating."
             return
         }
-        if ($GPOName) {
-            $Splat = @{
-                GPOName = $GPOName
-            }
-        } elseif ($GPOGUID) {
-            $Splat = @{
-                GPOGUID = $GPOGUID
-            }
-        } else {
-            $Splat = @{
-
-            }
-        }
-
-        $Splat['IncludeGPOObject'] = $true
-        $Splat['Forest'] = $Forest
-        $Splat['IncludeDomains'] = $IncludeDomains
-        $Splat['ExcludeDomains'] = $ExcludeDomains
-        $Splat['ExtendedForestInformation'] = $ExtendedForestInformation
-        $Splat['ExcludePermissionType'] = $ExcludePermissionType
-        $Splat['IncludePermissionType'] = $IncludePermissionType
-        $Splat['SkipWellKnown'] = $SkipWellKnown.IsPresent
-        $Splat['SkipAdministrative'] = $SkipAdministrative.IsPresent
-
-
         # $GPOPermission.GPOSecurity.RemoveTrustee($GPOPermission.Sid)
         #void RemoveTrustee(string trustee)
         #void RemoveTrustee(System.Security.Principal.IdentityReference identity)
@@ -67,6 +47,59 @@
         #void IList[GPPermission].RemoveAt(int index)
         #void IList.RemoveAt(int index)
 
+        foreach ($Domain in $ForestInformation.Domains) {
+            $QueryServer = $ForestInformation['QueryServers'][$Domain]['HostName'][0]
+            if ($GPOName) {
+                $getGPOSplat = @{
+                    Name        = $GPOName
+                    Domain      = $Domain
+                    Server      = $QueryServer
+                    ErrorAction = 'SilentlyContinue'
+                }
+            } elseif ($GPOGuid) {
+                $getGPOSplat = @{
+                    Guid        = $GPOGuid
+                    Domain      = $Domain
+                    Server      = $QueryServer
+                    ErrorAction = 'SilentlyContinue'
+                }
+            } else {
+                $getGPOSplat = @{
+                    All         = $true
+                    Domain      = $Domain
+                    Server      = $QueryServer
+                    ErrorAction = 'SilentlyContinue'
+                }
+            }
+            Get-GPO @getGPOSplat | ForEach-Object -Process {
+                $getPrivPermissionSplat = @{
+                    Principal              = $Principal
+                    PrincipalType          = $PrincipalType
+                    Accounts               = $Accounts
+                    Type                   = $Type
+                    GPO                    = $_
+                    SkipWellKnown          = $SkipWellKnown.IsPresent
+                    SkipAdministrative     = $SkipAdministrative.IsPresent
+                    IncludeOwner           = $false
+                    IncludeGPOObject       = $true
+                    IncludePermissionType  = $IncludePermissionType
+                    ExcludePermissionType  = $ExcludePermissionType
+                    ADAdministrativeGroups = $ADAdministrativeGroups
+                }
+                [Array] $GPOPermissions = Get-PrivPermission @getPrivPermissionSplat
+                if ($GPOPermissions.Count -gt 0) {
+                    foreach ($Permission in $GPOPermissions) {
+                        Remove-PrivPermission -Principal $Permission.Sid -PrincipalType Sid -GPOPermission $Permission -IncludePermissionType $Permission.Permission #-IncludeDomains $GPO.DomainName
+                    }
+                    $Count++
+                    if ($Count -eq $LimitProcessing) {
+                        # skipping skips per removed permission not per gpo.
+                        break
+                    }
+                }
+            }
+        }
+        <#
         Get-GPOZaurrPermission @Splat | ForEach-Object -Process {
             $GPOPermission = $_
             if ($Type -contains 'Unknown') {
@@ -77,7 +110,7 @@
                             Write-Verbose "Remove-GPOZaurrPermission - Removing permission $($GPOPermission.Permission) for $($GPOPermission.Sid)"
                             $GPOPermission.GPOSecurity.RemoveTrustee($GPOPermission.Sid)
                             $GPOPermission.GPOObject.SetSecurityInfo($GPOPermission.GPOSecurity)
-                            #$GPOPermission.GPOSecurity.RemoveAt($GPOPermission.GPOSecurityPermissionIndex)
+                            #$GPOPermission.GPOSecurity.RemoveAt($GPOPermission.GPOSecurityPermissionItem)
                             #$GPOPermission.GPOObject.SetSecurityInfo($GPOPermission.GPOSecurity)
                         } catch {
                             Write-Warning "Remove-GPOZaurrPermission - Removing permission $($GPOPermission.Permission) for $($GPOPermission.Sid) with error: $($_.Exception.Message)"
@@ -92,76 +125,19 @@
                 }
             }
             if ($Type -contains 'Named') {
-                <#
-                if ($PrincipalType -eq 'DistinguishedName') {
 
-                } elseif ($PrincipalType -eq 'Sid') {
-                    if ($GPOPermission.Sid -eq $Principal -and $GPOPermission.Permission -eq $IncludePermissionType) {
-
-                    }
-                } elseif ($PrincipalType -eq 'Name') {
-                    if ($GPOPermission.Name -eq $Principal -and $GPOPermission.Permission -eq $IncludePermissionType) {
-
-                    }
-                }
-                if ($NamedObjects -contains $GPOPermission.Sid) {
-                    #Write-Verbose "Remove-GPOZaurrPermission - Removing $($GPOPermission.Sid) from $($GPOPermission.DisplayName) at $($GPOPermission.DomainName)"
-                    if ($PSCmdlet.ShouldProcess($GPOPermission.DisplayName, "Removing $($GPOPermission.Sid) from $($GPOPermission.DisplayName) at $($GPOPermission.DomainName)")) {
-                        $GPOPermission.GPOSecurity.RemoveTrustee($GPOPermission.Sid)
-                        $GPOPermission.GPOObject.SetSecurityInfo($GPOPermission.GPOSecurity)
-                        # Set-GPPPermission doesn't work on Unknown Accounts
-                    }
-                    $Count++
-                    if ($Count -eq $LimitProcessing) {
-                        # skipping skips per removed permission not per gpo.
-                        break
-                    }
-                }
-                #>
             }
-            if ($Type -contains 'NonAdministrative') {
+            if ($Type -contains 'NotAdministrative') {
 
             }
             if ($Type -contains 'Default') {
-                if ($PrincipalType -eq 'DistinguishedName') {
-                    if ($GPOPermission.DistinguishedName -eq $Principal -and $GPOPermission.Permission -eq $IncludePermissionType) {
-                        try {
-                            Write-Verbose "Remove-GPOZaurrPermission - Removing permission $IncludePermissionType for $($Principal)"
-                            $GPOPermission.GPOSecurity.RemoveAt($GPOPermission.GPOSecurityPermissionIndex)
-                            $GPOPermission.GPOObject.SetSecurityInfo($GPOPermission.GPOSecurity)
-                        } catch {
-                            Write-Warning "Remove-GPOZaurrPermission - Adding permission $IncludePermissionType failed for $($Principal) with error: $($_.Exception.Message)"
-                        }
-                    }
-                } elseif ($PrincipalType -eq 'Sid') {
-                    if ($GPOPermission.Sid -eq $Principal -and $GPOPermission.Permission -eq $IncludePermissionType) {
-                        try {
-                            Write-Verbose "Remove-GPOZaurrPermission - Removing permission $IncludePermissionType for $($Principal)"
-                            $GPOPermission.GPOSecurity.RemoveAt($GPOPermission.GPOSecurityPermissionIndex)
-                            $GPOPermission.GPOObject.SetSecurityInfo($GPOPermission.GPOSecurity)
-                        } catch {
-                            Write-Warning "Remove-GPOZaurrPermission - Adding permission $IncludePermissionType failed for $($Principal) with error: $($_.Exception.Message)"
-                        }
-                    }
-                } elseif ($PrincipalType -eq 'Name') {
-                    if ($GPOPermission.Name -eq $Principal -and $GPOPermission.Permission -eq $IncludePermissionType) {
-                        try {
-                            Write-Verbose "Remove-GPOZaurrPermission - Removing permission $IncludePermissionType for $($Principal)"
-                            $GPOPermission.GPOSecurity.RemoveAt($GPOPermission.GPOSecurityPermissionIndex)
-                            $GPOPermission.GPOObject.SetSecurityInfo($GPOPermission.GPOSecurity)
-                        } catch {
-                            Write-Warning "Remove-GPOZaurrPermission - Adding permission $IncludePermissionType failed for $($Principal) with error: $($_.Exception.Message)"
-                        }
-                    }
-                }
-
+                Remove-PrivPermission -Principal $Principal -PrincipalType $PrincipalType -GPOPermission $GPOPermission -IncludePermissionType $IncludePermissionType
             }
             #Set-GPPermission -PermissionLevel None -TargetName $GPOPermission.Sid -Verbose -DomainName $GPOPermission.DomainName -Guid $GPOPermission.GUID #-WhatIf
             #Set-GPPermission -PermissionLevel GpoRead -TargetName 'Authenticated Users' -TargetType Group -Verbose -DomainName $Domain -Guid $_.GUID -WhatIf
 
         }
+        #>
     }
-    End {
-
-    }
+    End {}
 }

Public/Repair-GPOZaurrPermissionConsistency.ps1

@@ -0,0 +1,44 @@
+function Repair-GPOZaurrPermissionConsistency {
+    [cmdletBinding(SupportsShouldProcess, DefaultParameterSetName = 'Default')]
+    param(
+        [Parameter(ParameterSetName = 'GPOName')][string] $GPOName,
+        [Parameter(ParameterSetName = 'GPOGUID')][alias('GUID', 'GPOID')][string] $GPOGuid,
+
+        [alias('ForestName')][string] $Forest,
+        [string[]] $ExcludeDomains,
+        [alias('Domain', 'Domains')][string[]] $IncludeDomains,
+        [System.Collections.IDictionary] $ExtendedForestInformation,
+
+        [int] $LimitProcessing = [int32]::MaxValue
+    )
+    $ConsistencySplat = @{
+        Forest                    = $Forest
+        IncludeDomains            = $IncludeDomains
+        ExcludeDomains            = $ExcludeDomains
+        ExtendedForestInformation = $ExtendedForestInformation
+        Verbose                   = $VerbosePreference
+    }
+    if ($GPOName) {
+        $ConsistencySplat['GPOName'] = $GPOName
+    } elseif ($GPOGuid) {
+        $ConsistencySplat['GPOGuid'] = $GPOGUiD
+    } else {
+        $ConsistencySplat['Type'] = 'Inconsistent'
+    }
+
+    Get-GPOZaurrPermissionConsistency @ConsistencySplat -IncludeGPOObject | Where-Object {
+        if ($_.ACLConsistent -eq $false) {
+            $_
+        }
+    } | Select-Object -First $LimitProcessing | ForEach-Object {
+        #Write-Verbose "Repair-GPOZaurrPermissionConsistency - Repairing GPO consistency $($_.DisplayName) from domain: $($_.DomainName)"
+        if ($PSCmdlet.ShouldProcess($_.DisplayName, "Reparing GPO permissions consistency in domain $($_.DomainName)")) {
+            try {
+                $_.IncludeGPOObject.MakeAclConsistent()
+            } catch {
+                $ErrorMessage = $_.Exception.Message
+                Write-Warning "Repair-GPOZaurrPermissionConsistency - Failed to set consistency: $($ErrorMessage)."
+            }
+        }
+    }
+}

Public/Set-GPOOwner.ps1

@@ -0,0 +1,22 @@
+function Set-GPOOwner {
+    [cmdletBinding()]
+    param(
+        [validateset('Administrative', 'Default')][string] $Type = 'Default',
+        [string] $Principal
+    )
+    if ($Type -eq 'Default') {
+        if ($Principal) {
+            @{
+                Action    = 'Owner'
+                Type      = 'Default'
+                Principal = $Principal
+            }
+        }
+    } elseif ($Type -eq 'Administrative') {
+        @{
+            Action    = 'Owner'
+            Type      = 'Administrative'
+            Principal = ''
+        }
+    }
+}

Public/Set-GPOZaurrOwner.ps1

@@ -1,8 +1,53 @@
 function Set-GPOZaurrOwner {
+    <#
+    .SYNOPSIS
+    Short description
+
+    .DESCRIPTION
+    Long description
+
+    .PARAMETER Type
+    Unknown - finds unknown Owners and sets them to Administrative (Domain Admins) or chosen principal
+    NotMatching - find administrative groups only and if sysvol and gpo doesn't match - replace with chosen principal or Domain Admins if not specified
+    NotAdministrative - combination of Unknown/NotMatching and NotAdministrative - replace with chosen principal or Domain Admins if not specified
+    All - if Owner is known it checks if it's Administrative, if it sn't it fixes that. If owner is unknown it fixes it
+    .PARAMETER GPOName
+    Parameter description
+
+    .PARAMETER GPOGuid
+    Parameter description
+
+    .PARAMETER Forest
+    Parameter description
+
+    .PARAMETER ExcludeDomains
+    Parameter description
+
+    .PARAMETER IncludeDomains
+    Parameter description
+
+    .PARAMETER ExtendedForestInformation
+    Parameter description
+
+    .PARAMETER Principal
+    Parameter description
+
+    .PARAMETER SkipSysvol
+    Parameter description
+
+    .PARAMETER LimitProcessing
+    Parameter description
+
+    .EXAMPLE
+    An example
+
+    .NOTES
+    General notes
+    #>
     [cmdletBinding(SupportsShouldProcess, DefaultParameterSetName = 'Type')]
     param(
         [Parameter(ParameterSetName = 'Type', Mandatory)]
-        [validateset('EmptyOrUnknown', 'NonAdministrative', 'All')][string[]] $Type,
+        [validateset('Unknown', 'NotAdministrative', 'NotMatching', 'All')][string] $Type,
 
         [Parameter(ParameterSetName = 'Named')][string] $GPOName,
         [Parameter(ParameterSetName = 'Named')][alias('GUID', 'GPOID')][string] $GPOGuid,
@@ -27,79 +72,215 @@
         [Parameter(ParameterSetName = 'Named')]
         [string] $Principal,
 
+        [switch] $SkipSysvol,
+
         [Parameter(ParameterSetName = 'Type')]
         [Parameter(ParameterSetName = 'Named')]
-        [int] $LimitProcessing
+        [int] $LimitProcessing = [int32]::MaxValue
     )
     Begin {
+        #Write-Verbose "Set-GPOZaurrOwner - Getting ADAdministrativeGroups"
         $ADAdministrativeGroups = Get-ADADministrativeGroups -Type DomainAdmins, EnterpriseAdmins -Forest $Forest -IncludeDomains $IncludeDomains -ExcludeDomains $ExcludeDomains -ExtendedForestInformation $ExtendedForestInformation
-        $Count = 0
+        #Write-Verbose "Set-GPOZaurrOwner - Processing GPO for Type $Type"
     }
     Process {
-        if ($Type) {
-            Get-GPOZaurr -Forest $Forest -IncludeDomains $IncludeDomains -ExcludeDomains $ExcludeDomains -ExtendedForestInformation $ExtendedForestInformation -Verbose:$false | ForEach-Object -Process {
-                $GPO = $_
-                if ($Type -contains 'All') {
-                    # Regardless who is the owner it is overwritten
-                    if ($Principal) {
-                        Write-Verbose "Set-GPOZaurrOwner - Changing GPO: $($GPO.DisplayName) from domain: $($GPO.DomainName) from owner $($GPO.Owner)/$($GPO.OwnerSID) to $Principal"
-                        Set-ADACLOwner -ADObject $GPO.DistinguishedName -Principal $DefaultPrincipal -Verbose:$false -WhatIf:$WhatIfPreference
-                    } else {
-                        $DefaultPrincipal = $ADAdministrativeGroups["$($GPO.DomainName)"]['DomainAdmins']
-                        Write-Verbose "Set-GPOZaurrOwner - Changing GPO: $($GPO.DisplayName) from domain: $($GPO.DomainName) from owner $($GPO.Owner)/$($GPO.OwnerSID) to $DefaultPrincipal"
-                        Set-ADACLOwner -ADObject $GPO.DistinguishedName -Principal $DefaultPrincipal -Verbose:$false -WhatIf:$WhatIfPreference
-                        $Count++
-                        if ($Count -eq $LimitProcessing) {
-                            break
-                        }
-                    }
-                }
-                if ($Type -contains 'NonAdministrative' -and $Type -notcontains 'All') {
-                    if ($GPO.Owner) {
-                        $AdministrativeGroup = $ADAdministrativeGroups['ByNetBIOS']["$($GPO.Owner)"]
-                        if (-not $AdministrativeGroup) {
-                            if ($Principal) {
-                                Write-Verbose "Set-GPOZaurrOwner - Changing GPO: $($GPO.DisplayName) from domain: $($GPO.DomainName) from owner $($GPO.Owner)/$($GPO.OwnerSID) to $Principal"
-                                Set-ADACLOwner -ADObject $GPO.DistinguishedName -Principal $DefaultPrincipal -Verbose:$false -WhatIf:$WhatIfPreference
-                            } else {
-                                $DefaultPrincipal = $ADAdministrativeGroups["$($GPO.DomainName)"]['DomainAdmins']
-                                Write-Verbose "Set-GPOZaurrOwner - Changing GPO: $($GPO.DisplayName) from domain: $($GPO.DomainName) from owner $($GPO.Owner)/$($GPO.OwnerSID) to $DefaultPrincipal"
-                                Set-ADACLOwner -ADObject $GPO.DistinguishedName -Principal $DefaultPrincipal -Verbose:$false -WhatIf:$WhatIfPreference
-                                $Count++
-                                if ($Count -eq $LimitProcessing) {
-                                    break
-                                }
-                            }
-                        }
-                    }
-                }
-                if ($Type -contains 'EmptyOrUnknown' -and $Type -notcontains 'All') {
-                    if ($null -eq $GPO.Owner) {
-                        if ($Principal) {
-                            Write-Verbose "Set-GPOZaurrOwner - Changing GPO: $($GPO.DisplayName) from domain: $($GPO.DomainName) from owner NULL/$($GPO.OwnerSID) to $Principal"
-                            Set-ADACLOwner -ADObject $GPO.DistinguishedName -Principal $DefaultPrincipal -Verbose:$false -WhatIf:$WhatIfPreference
-                        } else {
-                            $DefaultPrincipal = $ADAdministrativeGroups["$($GPO.DomainName)"]['DomainAdmins']
-                            Write-Verbose "Set-GPOZaurrOwner - Changing GPO: $($GPO.DisplayName) from domain: $($GPO.DomainName) from owner NULL/$($GPO.OwnerSID) to $DefaultPrincipal"
-                            Set-ADACLOwner -ADObject $GPO.DistinguishedName -Principal $DefaultPrincipal -Verbose:$false -WhatIf:$WhatIfPreference
-                        }
-                        $Count++
-                        if ($Count -eq $LimitProcessing) {
-                            break
-                        }
-                    }
+        $getGPOZaurrOwnerSplat = @{
+            IncludeSysvol             = -not $SkipSysvol.IsPresent
+            Forest                    = $Forest
+            IncludeDomains            = $IncludeDomains
+            ExcludeDomains            = $ExcludeDomains
+            ExtendedForestInformation = $ExtendedForestInformation
+            ADAdministrativeGroups    = $ADAdministrativeGroups
+            Verbose                   = $VerbosePreference
+        }
+        if ($GPOName) {
+            $getGPOZaurrOwnerSplat['GPOName'] = $GPOName
+        } elseif ($GPOGuid) {
+            $getGPOZaurrOwnerSplat['GPOGuid'] = $GPOGUiD
+        }
+        Get-GPOZaurrOwner @getGPOZaurrOwnerSplat | Where-Object {
+            if ($_.Owner) {
+                $AdministrativeGroup = $ADAdministrativeGroups['ByNetBIOS']["$($_.Owner)"]
+            } else {
+                $AdministrativeGroup = $null
+            }
+            if (-not $SkipSysvol) {
+                if ($_.SysvolOwner) {
+                    $AdministrativeGroupSysvol = $ADAdministrativeGroups['ByNetBIOS']["$($_.SysvolOwner)"]
+                } else {
+                    $AdministrativeGroupSysvol = $null
                 }
             }
-        } else {
-            Get-GPOZaurr -GPOName $GPOName -GPOGuid $GPOGUiD -Forest $Forest -IncludeDomains $IncludeDomains -ExcludeDomains $ExcludeDomains -ExtendedForestInformation $ExtendedForestInformation -Verbose:$false | ForEach-Object -Process {
-                $GPO = $_
+            if ($Type -eq 'NotAdministrative') {
+                if (-not $AdministrativeGroup -or (-not $AdministrativeGroupSysvol -and -not $SkipSysvol)) {
+                    $_
+                } else {
+                    if ($AdministrativeGroup -ne $AdministrativeGroupSysvol) {
+                        Write-Verbose "Set-GPOZaurrOwner - Detected mismatch GPO: $($_.DisplayName) from domain: $($_.DomainName) - owner $($_.Owner) / sysvol owner $($_.SysvolOwner). Fixing required."
+                        $_
+                    }
+                }
+
+                <#
+                if (-not $AdministrativeGroup -and (-not $AdministrativeGroupSysvol -and -not $SkipSysvol)) {
+                    $Action = 'Both'
+                    $_
+                } elseif (-not $AdministrativeGroup) {
+                    $Action = 'OnlyGPO'
+                    $_
+                } elseif (-not $AdministrativeGroupSysvol -and -not $SkipSysvol) {
+                    $Action = 'OnlyFileSystem'
+                    $_
+                } else {
+                    if ($_.Owner -ne $_.SysvolOwner) {
+                        $Action = 'OnlyFileSystem'
+                        $_
+                    }
+                }
+                #>
+            } elseif ($Type -eq 'Unknown') {
+                if (-not $_.Owner -or (-not $_.SysvolOwner -and -not $SkipSysvol)) {
+                    $_
+                }
+            } elseif ($Type -eq 'NotMatching') {
+                if ($SkipSysvol) {
+                    Write-Verbose "Set-GPOZaurrOwner - Detected mismatch GPO: $($_.DisplayName) from domain: $($_.DomainName) - owner $($_.Owner) / sysvol owner $($_.SysvolOwner). SysVol scanning is disabled. Skipping."
+                } else {
+                    if ($AdministrativeGroup -ne $AdministrativeGroupSysvol) {
+                        #Write-Verbose "Set-GPOZaurrOwner - Detected mismatch GPO: $($_.DisplayName) from domain: $($_.DomainName) - owner $($_.Owner) / sysvol owner $($_.SysvolOwner). Fixing required."
+                        $_
+                    }
+                }
+            } else {
+                # we run with no type, that means we need to either set it to principal or to Administrative
+                if ($_.Owner) {
+                    # we check if Principal is not set
+                    $AdministrativeGroup = $ADAdministrativeGroups['ByNetBIOS']["$($_.Owner)"]
+                    if (-not $SkipSysvol -and $_.SysvolOwner) {
+                        $AdministrativeGroupSysvol = $ADAdministrativeGroups['ByNetBIOS']["$($_.SysvolOwner)"]
+                        if (-not $AdministrativeGroup -or -not $AdministrativeGroupSysvol) {
+                            $_
+                        }
+                    } else {
+                        if (-not $AdministrativeGroup) {
+                            $_
+                        }
+                    }
+                } else {
+                    $_
+                }
+            }
+        } | Select-Object -First $LimitProcessing | ForEach-Object -Process {
+            $GPO = $_
+            #if (-not $Principal) {
+            #   $Principal = $ADAdministrativeGroups["$($GPO.DomainName)"]['DomainAdmins']
+            #}
+            if (-not $Principal) {
+                $DefaultPrincipal = $ADAdministrativeGroups["$($_.DomainName)"]['DomainAdmins']
+            } else {
+                $DefaultPrincipal = $Principal
+            }
+            if ($Action -eq 'OnlyGPO') {
+                Write-Verbose "Set-GPOZaurrOwner - Changing GPO: $($GPO.DisplayName) from domain: $($GPO.DomainName) from owner $($GPO.Owner) (SID: $($GPO.OwnerSID)) to $DefaultPrincipal"
+                Set-ADACLOwner -ADObject $GPO.DistinguishedName -Principal $DefaultPrincipal  -Verbose:$false -WhatIf:$WhatIfPreference
+            } elseif ($Action -eq 'OnlyFileSystem') {
+                if (-not $SkipSysvol) {
+                    Write-Verbose "Set-GPOZaurrOwner - Changing Sysvol Owner GPO: $($GPO.DisplayName) from domain: $($GPO.DomainName) from owner $($GPO.SysvolOwner) (SID: $($GPO.SysvolSid)) to $DefaultPrincipal"
+                    Set-FileOwner -JustPath -Path $GPO.SysvolPath -Owner $DefaultPrincipal  -Verbose:$true -WhatIf:$WhatIfPreference
+                }
+            } else {
+                Write-Verbose "Set-GPOZaurrOwner - Changing GPO: $($GPO.DisplayName) from domain: $($GPO.DomainName) from owner $($GPO.Owner) (SID: $($GPO.OwnerSID)) to $DefaultPrincipal"
+                Set-ADACLOwner -ADObject $GPO.DistinguishedName -Principal $DefaultPrincipal  -Verbose:$false -WhatIf:$WhatIfPreference
+                if (-not $SkipSysvol) {
+                    Write-Verbose "Set-GPOZaurrOwner - Changing Sysvol Owner GPO: $($GPO.DisplayName) from domain: $($GPO.DomainName) from owner $($GPO.SysvolOwner) (SID: $($GPO.SysvolSid)) to $DefaultPrincipal"
+                    Set-FileOwner -JustPath -Path $GPO.SysvolPath -Owner $DefaultPrincipal -Verbose:$true -WhatIf:$WhatIfPreference
+                }
+            }
+        }
+        <#
+            if ($Type -contains 'All') {
+                # Regardless who is the owner it is overwritten
                 if ($Principal) {
                     Write-Verbose "Set-GPOZaurrOwner - Changing GPO: $($GPO.DisplayName) from domain: $($GPO.DomainName) from owner $($GPO.Owner)/$($GPO.OwnerSID) to $Principal"
-                    Set-ADACLOwner -ADObject $GPO.DistinguishedName -Principal $Principal -Verbose:$false -WhatIf:$WhatIfPreference
+                    Set-ADACLOwner -ADObject $GPO.GPODistinguishedName -Principal $Principal -Verbose:$false -WhatIf:$WhatIfPreference
                 } else {
                     $DefaultPrincipal = $ADAdministrativeGroups["$($GPO.DomainName)"]['DomainAdmins']
                     Write-Verbose "Set-GPOZaurrOwner - Changing GPO: $($GPO.DisplayName) from domain: $($GPO.DomainName) from owner $($GPO.Owner)/$($GPO.OwnerSID) to $DefaultPrincipal"
-                    Set-ADACLOwner -ADObject $GPO.DistinguishedName -Principal $DefaultPrincipal -Verbose:$false -WhatIf:$WhatIfPreference
+                    Set-ADACLOwner -ADObject $GPO.GPODistinguishedName -Principal $DefaultPrincipal -Verbose:$false -WhatIf:$WhatIfPreference
+                }
+                $Count++
+                if ($Count -eq $LimitProcessing) {
+                    break
+                }
+            } elseif ($Type -contains 'NotAdministrative' -and $Type -notcontains 'All') {
+                if ($GPO.Owner) {
+                    $AdministrativeGroup = $ADAdministrativeGroups['ByNetBIOS']["$($GPO.Owner)"]
+                    if (-not $AdministrativeGroup) {
+                        if ($Principal) {
+                            Write-Verbose "Set-GPOZaurrOwner - Changing GPO: $($GPO.DisplayName) from domain: $($GPO.DomainName) from owner $($GPO.Owner)/$($GPO.OwnerSID) to $Principal"
+                            Set-ADACLOwner -ADObject $GPO.GPODistinguishedName -Principal $DefaultPrincipal -Verbose:$false -WhatIf:$WhatIfPreference
+                        } else {
+                            $DefaultPrincipal = $ADAdministrativeGroups["$($GPO.DomainName)"]['DomainAdmins']
+                            Write-Verbose "Set-GPOZaurrOwner - Changing GPO: $($GPO.DisplayName) from domain: $($GPO.DomainName) from owner $($GPO.Owner)/$($GPO.OwnerSID) to $DefaultPrincipal"
+                            Set-ADACLOwner -ADObject $GPO.GPODistinguishedName -Principal $DefaultPrincipal -Verbose:$false -WhatIf:$WhatIfPreference
+                        }
+                        $Count++
+                        if ($Count -eq $LimitProcessing) {
+                            return
+                        }
+                    }
+                }
+            } else ($Type -contains 'Unknown' -and $Type -notcontains 'All') {
+                if ($null -eq $GPO.Owner) {
+                    if ($Principal) {
+                        Write-Verbose "Set-GPOZaurrOwner - Changing GPO: $($GPO.DisplayName) from domain: $($GPO.DomainName) from owner NULL/$($GPO.OwnerSID) to $Principal"
+                        Set-ADACLOwner -ADObject $GPO.GPODistinguishedName -Principal $Principal -Verbose:$false -WhatIf:$WhatIfPreference
+                    } else {
+                        $DefaultPrincipal = $ADAdministrativeGroups["$($GPO.DomainName)"]['DomainAdmins']
+                        Write-Verbose "Set-GPOZaurrOwner - Changing GPO: $($GPO.DisplayName) from domain: $($GPO.DomainName) from owner NULL/$($GPO.OwnerSID) to $DefaultPrincipal"
+                        Set-ADACLOwner -ADObject $GPO.GPODistinguishedName -Principal $DefaultPrincipal -Verbose:$false -WhatIf:$WhatIfPreference
+                    }
+                    $Count++
+                    if ($Count -eq $LimitProcessing) {
+                        break
+                    }
+                }
+            } else {
+                $GPO = $_
+                if ($Principal) {
+                    Write-Verbose "Set-GPOZaurrOwner - Changing GPO: $($GPO.DisplayName) from domain: $($GPO.DomainName) from owner $($GPO.Owner)/$($GPO.OwnerSID) to $Principal"
+                    Set-ADACLOwner -ADObject $GPO.GPODistinguishedName -Principal $Principal -Verbose:$false -WhatIf:$WhatIfPreference
+                } else {
+                    $DefaultPrincipal = $ADAdministrativeGroups["$($GPO.DomainName)"]['DomainAdmins']
+                    Write-Verbose "Set-GPOZaurrOwner - Changing GPO: $($GPO.DisplayName) from domain: $($GPO.DomainName) from owner $($GPO.Owner)/$($GPO.OwnerSID) to $DefaultPrincipal"
+                    Set-ADACLOwner -ADObject $GPO.GPODistinguishedName -Principal $DefaultPrincipal -Verbose:$false -WhatIf:$WhatIfPreference
+                }
+            }
+            #>
+        #}
+        #>
+        #}
+        <#
+        else {
+            $getGPOZaurrOwnerSplat = @{
+                IncludeSysvol             = $IncludeSysVol
+                Forest                    = $Forest
+                IncludeDomains            = $IncludeDomains
+                ExcludeDomains            = $ExcludeDomains
+                ExtendedForestInformation = $ExtendedForestInformation
+                ADAdministrativeGroups    = $ADAdministrativeGroups
+                GPOName                   = $GPOName
+                GPOGuid                   = $GPOGUiD
+            }
+            Get-GPOZaurrOwner @getGPOZaurrOwnerSplat $IncludeSysVol | ForEach-Object -Process {
+                $GPO = $_
+                if ($Principal) {
+                    Write-Verbose "Set-GPOZaurrOwner - Changing GPO: $($GPO.DisplayName) from domain: $($GPO.DomainName) from owner $($GPO.Owner)/$($GPO.OwnerSID) to $Principal"
+                    Set-ADACLOwner -ADObject $GPO.GPODistinguishedName -Principal $Principal -Verbose:$false -WhatIf:$WhatIfPreference
+                } else {
+                    $DefaultPrincipal = $ADAdministrativeGroups["$($GPO.DomainName)"]['DomainAdmins']
+                    Write-Verbose "Set-GPOZaurrOwner - Changing GPO: $($GPO.DisplayName) from domain: $($GPO.DomainName) from owner $($GPO.Owner)/$($GPO.OwnerSID) to $DefaultPrincipal"
+                    Set-ADACLOwner -ADObject $GPO.GPODistinguishedName -Principal $DefaultPrincipal -Verbose:$false -WhatIf:$WhatIfPreference
                 }
                 $Count++
                 if ($Count -eq $LimitProcessing) {
@@ -107,6 +288,7 @@
                 }
             }
         }
+        #>
     }
     End {