A LOT of the search results I found are marked as not safe by WOT.. (web of trust)
I would only get programs from well known anti virus sites in this case..

Have you tried Hijack this?
http://sourceforge.net/projects/hjt/
how to use it-
http://www.wikihow.com/Use-HiJackThis
http://www.bleepingcomputer.com/tuto...se-hijackthis/

other free tools-
http://free.antivirus.com/us/#cleanup-and-prevention
http://usa.kaspersky.com/downloads/TDSSKiller