Vista Antivirus 2008 (VistaAntivirus 2008) is a fake spyware remover, a copy of mean XP Antivirus and Windows Antivirus 2008. Vista Antivirus 2008 sneaks into your computer system with the help of Trojan Zlob (you may have downloaded a fake video codec with Trojan Zlob bundled), via a weak security hole. Vista Antivirus 2008 will try to scare you with fake messages, as well as, bogus scans and scan results stating that you have been infected with malicious programs and viruses. (via)