Antivirus Best is a fake security software (rogue). It displays fake alerts to justify an infection to incite users into buying a license.
It belongs to the same Total Virus Protection, Anti-Virus Number-1, Antivirus Sentry, Antivirus 2010, Micro Antivirus 2009, MS Antivirus, Smart Antivirus 2009, System Antivirus 2008, Antivirus 2009, Internet-antivirus