ExtraAntivir , otherwise known as Extra Antivir, Extra Antivir 2.8, is a renegade anti-spyware program usually installed by the Trojan Vundo. Once a system has been infected by ExtraAntivir , the user will receive numerous fictitious security alerts and system scan results, stating that the computer is infected with spyware. In order to remove the supposed spyware infections, ExtraAntivir will then urge the user to purchase ExtraAntivir 's full program from its website, ExtraAntivir .com, for $79.95 or $49.95. ExtraAntivir 's website may seem to be a legitimate website; however, ExtraAntivir .com is in actuality the home of a major scam. ExtraAntivir website offers no contact details or information about the company, all it has as proof of its legitimacy is an article containing a list of the company's fake achievements. One may also find many grammatical errors in some sections of ExtraAntivir website, further testament to the fakeness of the entire site.