One of my computers became infected with the AVG 8 virus. It was very difficult to get rid of. Avast has done a good job in the past of removing/isolating viruses. How did it miss this one?
Fact of life, no security program have 100% detection…
Fake antivirus overwhelming scanners
http://www.networkworld.com/news/2009/100209-fake-antivirus-overwhelming.html
Remove Antivirus8 or Antivirus 8 (Uninstall Guide)
http://www.bleepingcomputer.com/virus-removal/remove-antivirus8