Using Windows Screensaver as a Backdoor with PowerShell

I came across this interesting post about bypassing Windows Lock Screen via Flash Screensaver. While bypassing the lock screen is useful, the method mentioned there needs physical access to the target. This feature of Windows could be used for much more fun. The fact that Screensaver would run our payload whenever the target would be idle makes it much useful as a backdoor.
Lets see here.........http://www.labofapenetrationtester.com/2015/02/using-windows-screensaver-as-backdoor.html