Friend of mine has a wierd virus, it came through aim when an im window popped up saying "click here for pictures", but just before it popped up he was going to click on the area where the link was(unbelievable luck, i witnessed it :P) and has a virus that, whenever he's using his browser(mozilla firefox), a window named "Aurora" pops up with an ad.  He's gone through a bunch of different virus/spyware scanners and cant seem to remove it, anyone got help?