Workstation infected by a virus or trojan horse?

Use these 3 programs to check your pc (and yes, all three, not one!).

install them and update them, then reboot to safe mode and start the scanning.

TrojanHunter – http://www.trojanhunter.com
Antivir – http://www.free-av.com/
The Cleaner – http://www.moosoft.com/