I made screenshots of two more virus alert instances. one occurred yesterday while I updated java, the other one just now.
so far, most of the alerts stated C:Windows/System32/svchost.exe as the process responsible. however, sometimes it says something else.
since I already mentioned it before (one time it even said avast was the source), this might not be helpful, but since I was able to catch in on a screenshot, I thought I'd post it anyway, just to give you as much information as possible.
thanx again.