function New-GPOZaurrWMI { [cmdletBinding(SupportsShouldProcess)] param( [parameter(Mandatory)][string] $Name, [string] $Description = ' ', [string] $Namespace = 'root\CIMv2', [parameter(Mandatory)][string] $Query, [switch] $SkipQueryCheck, [switch] $Force, [alias('ForestName')][string] $Forest, [string[]] $ExcludeDomains, [alias('Domain', 'Domains')][string[]] $IncludeDomains, [System.Collections.IDictionary] $ExtendedForestInformation ) if (-not $Forest -and -not $ExcludeDomains -and -not $IncludeDomains -and -not $ExtendedForestInformation) { $IncludeDomains = $Env:USERDNSDOMAIN } if (-not $SkipQueryCheck) { try { $null = Get-CimInstance -Query $Query -ErrorAction Stop -Verbose:$false } catch { Write-Warning "New-GPOZaurrWMI - Query error $($_.Exception.Message). Terminating." return } } $ForestInformation = Get-WinADForestDetails -Forest $Forest -IncludeDomains $IncludeDomains -ExcludeDomains $ExcludeDomains -ExtendedForestInformation $ExtendedForestInformation foreach ($Domain in $ForestInformation.Domains) { $QueryServer = $ForestInformation['QueryServers'][$Domain]['HostName'][0] $DomainInformation = Get-ADDomain -Server $QueryServer $defaultNamingContext = $DomainInformation.DistinguishedName #$defaultNamingContext = (Get-ADRootDSE).defaultnamingcontext [string] $Author = (([ADSI]"LDAP://").UserPrincipalName).ToString() [string] $GUID = "{" + ([System.Guid]::NewGuid()) + "}" [string] $DistinguishedName = -join ("CN=", $GUID, ",CN=SOM,CN=WMIPolicy,CN=System,", $defaultNamingContext) $CurrentTime = (Get-Date).ToUniversalTime() [string] $CurrentDate = -join ( ($CurrentTime.Year).ToString("0000"), ($CurrentTime.Month).ToString("00"), ($CurrentTime.Day).ToString("00"), ($CurrentTime.Hour).ToString("00"), ($CurrentTime.Minute).ToString("00"), ($CurrentTime.Second).ToString("00"), ".", ($CurrentTime.Millisecond * 1000).ToString("000000"), "-000" ) [Array] $ExistingWmiFilter = Get-GPOZaurrWMI -ExtendedForestInformation $ForestInformation -IncludeDomains $Domain -Name $Name if ($ExistingWmiFilter.Count -eq 0) { [string] $WMIParm2 = -join ("1;3;10;", $Query.Length.ToString(), ";WQL;$Namespace;", $Query , ";") $OtherAttributes = @{ "msWMI-Name" = $Name "msWMI-Parm1" = $Description "msWMI-Parm2" = $WMIParm2 "msWMI-Author" = $Author "msWMI-ID" = $GUID "instanceType" = 4 "showInAdvancedViewOnly" = "TRUE" "distinguishedname" = $DistinguishedName "msWMI-ChangeDate" = $CurrentDate "msWMI-CreationDate" = $CurrentDate } $WMIPath = -join ("CN=SOM,CN=WMIPolicy,CN=System,", $defaultNamingContext) try { Write-Verbose "New-GPOZaurrWMI - Creating WMI filter $Name in $Domain" New-ADObject -Name $GUID -Type "msWMI-Som" -Path $WMIPath -OtherAttributes $OtherAttributes -Server $QueryServer } catch { Write-Warning "New-GPOZaurrWMI - Creating GPO filter error $($_.Exception.Message). Terminating." return } } else { foreach ($_ in $ExistingWmiFilter) { Write-Warning "New-GPOZaurrWMI - Skipping creation of GPO because name: $($_.DisplayName) guid: $($_.ID) for $($_.DomainName) already exists." } } } }