If you're on windows and don't have a virus scanner, GET ONE, and fix your shit before I slap the crap out of you. I don't feel like tracking this down, but I'm very tempted to start digging. And go visit http://windowsupdate.microsoft.com/ , a patch was released a while ago that helps protect against it, if you don't update your machine regularly, DO IT. NOW.
NOW I SAID.