In this video, we look at a demo of the screen unlock meterpreter script. The script needs SYSTEM privileges and patches the msv1_0.dll loaded by lsass.exe so that every password will be accepted to unlock the screen. (the patch can also be undone to get back to normal behavior). Currently Windows XP SP2 and SP3 are supported. You can download it from here. The script author’s blog has more details. Thanks go out to PaulDotCom for uploading this to vimeo.