Posted 20 November 2008 - 01:58 PM
Most people will tell you that there is NO way to be 100% sure when things can hide themselves from the operating system completely. Show hidden files? Check. Oh, there are SUPER hidden files? Thanks M$! That's awesome!
Your video driver could be hooked, your system could have any number of new rootkits, maybe there's a rootkit that made it to the bios or a hidden track on the hard drive - the service track for instance or maybe I'm just talking through my hat.
Unplug it and bury it in a concrete vault and there's an FBI agent out there who says he still can't guarantee that it is secure. Nice world we live in eh?