Google Groups susceptible to viruses?

I received the following email notification from the Google Video Blog group. Somehow, a few recent posts made to the group were infected with the mass-mailing worm, W32/Kapser.A@mm. It's strange that this would affect an announcement-only group, moreover, one of Google's official groups.



Google has recommended that users download Norton AntiVirus via Google Pack, which comes with a free 6-month subscription to virus definition file updates. However, it's interesting to take note of the characteristics of this particular virus, as documented by FRISK/F-Prot:

W32/Kapser.A@mm is a mass mailing worm. It kills antivirus processes and deletes files and registry keys belonging to antivirus and P2P programs. On the 3rd day of every month if destroys some files on the infected system.

...and disables antivirus products from some vendors, for example:

SYMANTEC
KASPERSKY
MCAFEE
TREND MICRO

However F-PROT Antivirus products are not effected.

Well, one can only wonder whether Norton AntiVirus will work effectively. Being an *old* virus (Jan 2006), I would assume it is easy to fix. The F-Prot threat description sure holds some credibility as it's the top search result on Google!