SpySheriff is an adware and rogue antivirus that pretends to be antivirus software when it is actually a piece of severe malware itself. It provides exaggerated and false details about malware on the computer. As a way of so called "protection" it locks Internet Explorer to prevent "severe malware" from infecting the computer and also locks System Restore to prevent the compromised computer from using normal procedures to protect itself. It also corrupts the system so that when supposedly removed from the computer, the computer crashes. Even if it is removed, it manages to restore itself. It has been commonly implemented in pirated versions of Norton AntiVirus. " It also spots out fake viruses. It's basically a scam but it infects it also.