If you frequent certain portions of the internet, you’ve almost certainly seen pop-ups warning you that your PC is infested with all manner of creepy-crawly viruses. The ad is fake, and so is the software that it asks you to pay for, according to a new Federal Trade Commission lawsuit against a pair of phony antivirus sellers. FTC investigators allege that Restoro and Reimage, two companies run out of the same office in the Republic of Cyprus, have been scamming customers with fake antivirus software for years. The two companies have settled with American investigators for $26 million USD, whi…