function Get-PermissionsAnalysis { [cmdletBinding()] param( [PSCustomObject] $GPOPermissions, [validateset('WellKnownAdministrative', 'Administrative', 'AuthenticatedUsers', 'Default')][string] $Type = 'Default', [Parameter(Mandatory)][alias('IncludePermissionType')][Microsoft.GroupPolicy.GPPermissionType] $PermissionType, [alias('ForestName')][string] $Forest, [string[]] $ExcludeDomains, [alias('Domain', 'Domains')][string[]] $IncludeDomains, [System.Collections.IDictionary] $ExtendedForestInformation, [System.Collections.IDictionary] $ADAdministrativeGroups ) if (-not $ADAdministrativeGroups) { $ADAdministrativeGroups = Get-ADADministrativeGroups -Type DomainAdmins, EnterpriseAdmins -Forest $Forest -IncludeDomains $IncludeDomains -ExcludeDomains $ExcludeDomains -ExtendedForestInformation $ExtendedForestInformation } $AdministrativeExists = [ordered] @{ DisplayName = $GPOPermissions[0].DisplayName DomainName = $GPOPermissions[0].DomainName GUID = $GPOPermissions[0].GUID Skip = $false DomainAdmins = $false EnterpriseAdmins = $false } #$GPOPermissions = $_ # Verification Phase # When it has GPOSecurityPermissionItem property it means it has permissions, if it doesn't it means we have clean object to process if ($GPOPermissions.GPOSecurityPermissionItem) { # Permission exists, but may be incomplete foreach ($GPOPermission in $GPOPermissions) { if ($Type -eq 'Default') { # We were looking for specific principal and we got it. nothing to do # this is for standard users such as przemyslaw.klys / adam.gonzales $AdministrativeExists['Skip'] = $true break } elseif ($Type -eq 'Administrative') { # We are looking for administrative but we need to make sure we got correct administrative if ($GPOPermission.Permission -eq $PermissionType) { $AdministrativeGroup = $ADAdministrativeGroups['BySID'][$GPOPermission.PrincipalSid] if ($AdministrativeGroup.SID -like '*-519') { $AdministrativeExists['EnterpriseAdmins'] = $true } elseif ($AdministrativeGroup.SID -like '*-512') { $AdministrativeExists['DomainAdmins'] = $true } } if ($AdministrativeExists['DomainAdmins'] -and $AdministrativeExists['EnterpriseAdmins']) { $AdministrativeExists['Skip'] = $true break } } elseif ($Type -eq 'WellKnownAdministrative') { # this is for SYSTEM account $AdministrativeExists['Skip'] = $true break } elseif ($Type -eq 'AuthenticatedUsers') { # this is for Authenticated Users $AdministrativeExists['Skip'] = $true break } } } [PSCustomObject] $AdministrativeExists }