stehardy Hi.
Yes Im afraid thats what you have A Worm/trojan.
go to one of the Free computer Help sites listed here, They really know what there doing. register and post in there
forum, They will instruct you to D/L & run software that can be trusted,
Not all sites are Genuine, These three are recommended by US & tekies.
http://forums.spywareinfo.com/index.php?showtopic=79038 http://www.castlecops.com/HijackThis.html http://www.bleepingcomputer.com/
If the site you choose gives you good help, Tell us it helps others.
Peace.