system
16
Also a hijackthis log could help (done when your not not in safe mode).
Also try these online scanners:
http://www.bitdefender.com/scan/index.html
http://housecall.trendmicro.com/housecall/start_corp.asp
http://www.ravantivirus.com/scan/indexie.php
Hopefully these will find this virus for you.
Also, try updating your OS, SP2 etc
–lee