Get-WannaCryPatchState - Scans an AD domain to find all Windows Computers, try to connect to them, get the installed hotfixes and sees if one of 'KB4012212', 'KB4012213', 'KB4012214', 'KB4012215', 'KB4012216', 'KB4012217', 'KB4012598', 'KB4013429', 'KB4015217', 'KB4015438', 'KB4015549', 'KB4015550', 'KB4015551', 'KB4015552', 'KB4015553', 'KB4016635', 'KB4019215', 'KB4019216', 'KB4019264', 'KB4019472' are installed. The status of each machine is output to a log in the user's My Documents and a full summary is given at the end.

Via https://liens.strak.ch/?w584ZA