“I inadvertently downloaded the “Windows Detected Koobface Virus” pop-up – could you please tell me how to delete this from my system?” Well, if you are randomly encountering a “Windows Detected Koobface Virus” pop-up that requires you to call a support number, then your computer is infected with a Rogue Tech Support Scam. We also call it Adware here. The Windows Detected Koobface Virus alert may display and present that the user’s computer has crashed or that a virus has been detected on the computer. Through its scary alert, the victim may follow its advice to call one of the listed numbers in order to receive support. Actually, this adware just tries to sell the user unneeded support contracts and services.