Do antivirus scan the "system restore" area ?

[mike12]

I had my computer on and just sitting here for about an hour. Then I noticed that AVG was flashing a message that it detected a worm / virus. I also noticed that it was in a system restore file / area. I then did a full scan, and nothing showed up. I then turned off system restore, to get rid of the virus, and then turned it back on. Then I did another scan with AVG, one at Panda, and one at Housecall. Nothing showed up. So my question is--why did AVG detect a virus in the restore area when the computer was just at idle, and not when I did a full manual scan ? I am running XP Pro with all the updates including SP2, and update AVG every other day.

[Jaggannath]

Because the last restore point may have had an infected file that has since been cleaned up perhaps

[mike12]

Hi Jagg, thanks for the reply, but I did a scan BEFORE I deleted the system restore, and nothing showed up.