WinAntivirus is a rogue anti-spyware program, which works in much the same way as most rogues do. This parasite typically enters the system by using downloader trojans or drive-by downloads off malicious websites. WinAntivirus relies on misleading advertising to trick users into purchasing it’s “licensed version”, which is just as fake as the trial. Once inside, [...]

Source: http://www.2-viruses.com/remove-winantivirus