Avast 6.0 cannot detect malware specimen.

Avast Free Antivirus / Premium Security
1

Hi since time ago Ive seen avast virus engine cannot detect a malware named Win32.Virut or Vitro, I dont know why because avast could detect this threat before. I have conserve a malware sample and scanned at Virus total service, this is the URL where you can see my point: http://www.virustotal.com/file-scan/report.html?id=ab0935e28ce4f44f54d57d8d860f9e629545eb7c5ec20124d4c221f330ce347c-1309028986

I dont know what happenend because this malware threat is a very old.

2

All AV programs are different each other, some detect some forms of infected or potentially infected and some do not …
There is something very serious, but avast! will be updated and probably will have data on file “infected”