WMI Watcher for Windows Defender RealtimeMonitoring

defenderwatch.ps1

$WMI = @{
    Query = "SELECT * FROM __InstanceModificationEvent WITHIN 5 WHERE TargetInstance ISA 'MSFT_MpPreference' AND TargetInstance.DisableRealtimeMonitoring=True"
    Action = {
	      #$Global:Data = $Event
        Write-Host "Defender Configuration change - DisableRealtimeMonitoring:"$Event.SourceEventArgs.NewEvent.TargetInstance.DisableRealtimeMonitoring"(Old Value:"$Event.SourceEventArgs.NewEvent.PreviousInstance.DisableRealtimeMonitoring")"
    }
	Namespace = 'root\microsoft\windows\defender'
    SourceIdentifier = "Defender.DisableRealtimeMonitoring"
}
$Null = Register-WMIEvent @WMI

#Uninstall: Unregister-Event Defender.DisableRealtimeMonitoring