Hopefully I'm mistaken, but I got my first ever serious trojan/worm/virus infection in 10 years of using a pc yesterday, & the only new software installed on that day was winxp service pack 3 & some stalker mods downloaded from filefront & a couple of other places that I can't remember. It could possibly have been from a few days before & laid dormant, but can't think how - reformatted early this week & didn't visit any dodgy sites.
Mods installed were ENB series SSAO plugin, Priboi Story 1.1 + patch, & a texture pack that I forget the name of. It's likely not any of these because none require an .exe or similar to be run.
The virus in question is Fujacks, & started with a trojan called spoclsv.exe asking for access through Zone Alarm (I mistakenly allowed it access to my computer, but not the internet).
Any of you encountered this?