PowerShell script to test if ASP.NET padding security patch is applied

gistfile1.txt

Set-StrictMode -Version Latest

[Reflection.Assembly]::Load('System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a') | Out-Null

[System.Web.Configuration.MachineKeySection].GetMethods('NonPublic, Public, Static') |
    Where-Object { 
        $LastParameter = $_.GetParameters() | Select-Object -Last 1 
        $_.Name -eq 'EncryptOrDecryptData' -and
        $LastParameter -ne $null -and
        $LastParameter.ParameterType -eq [bool] -and
        $LastParameter.Name -eq 'signData'
    }