Windows Defender Definitions Updated within X days
Performs a dump of protectionManagement (VBS) and/or Get-MpComputerStatus (Powershell). If either returns the Windows Defender information the script will use another VBS to pull the virus signature age and compare it to the number you will be asked to input when the script is run. Defender information does not appear to be accessible on anything older than Windows 8. Can report using $Defender$, $OOD$, $UTD$.