I have dyfuca on one of the works computers I keep deleting it and it keeps coming back
the computer is going mad with pop-ups and icons apearing on the desktop, something is also creating dialup connections, I will let you know what I did if I can get shut of it.
You can try Spybot
http://www.safer-networking.org/en/index.html and also the free version of Adaware
http://www.lavasoftusa.com/software/adaware/