Get System WMI Filter in Active Directory. Used in Group Policy WMI Filtering.

Get-SystemWmiFilter.ps1

function Get-SystemWmiFilter {
  [CmdletBinding()]
  param (
    [Parameter(Mandatory, ValueFromPipeline)]
    [string]
    $Name,

    [Parameter(Mandatory)]
    [string]
    $DomainName
  )
  $DomainDistinguishedName = "DC=" + $DomainName.Replace('.', ',DC=')

  $Properties = @(
    'msWMI-Author'
    'msWMI-ID'
    'msWMI-Name'
    'msWMI-Parm1'
    'msWMI-Parm2'
    'Created'
    'Modified'
  )

  $WmiFilter = Get-ADObject `
    -Filter { ObjectClass -eq "msWMI-Som" -and msWMI-Name -eq $Name } `
    -SearchBase "CN=SOM,CN=WMIPolicy,CN=System,$DomainDistinguishedName" `
    -SearchScope OneLevel `
    -Properties $Properties

  $Response = [PSCustomObject]@{
    Id          = $WmiFilter.'msWMI-ID'.Trim('{}')
    Name        = $WmiFilter.'msWMI-Name'
    Description = $WmiFilter.'msWMI-Parm1'
    Query       = $WmiFilter.'msWMI-Parm2'
    Author      = $WmiFilter.'msWMI-Author'
    Created     = $WmiFilter.Created
    Modified    = $WmiFilter.Modified
  }

  return $Response
}

PS> Get-SystemWmiFilter -Name 'Windows Server 2019' -DomainName 'ad.yourcompany.com'

Id          : 41F6FC01-5F07-4A64-97E5-9C63B3A78BB2
Name        : Windows Server 2019
Description : Only apply to Windows Server 2019 computers
Query       : 1;3;10;67;WQL;root\CIMv2;Select * from Win32_OperatingSystem where Version like "10.0.17763";
Author      : Administrator@ad.yourcompany.com
Created     : 7/26/2022 4:54:21 PM
Modified    : 7/28/2022 10:59:15 AM