ok so ur answer is yes then this is a rootkit here are some tools:

Download http://public.avast.com/~gmerek/aswMBR.exe][aswMBR.exe[511KB ) to your desktop.

Double click the aswMBR.exe to run it

Click the “Scan” button to start scan

http://public.avast.com/~gmerek/aswMBR1.png

On completion of the scan click save log, save it to your desktop and post in your next reply

http://public.avast.com/~gmerek/aswMBR2.png

do tell me whether did this thing work or not if not then i have some more simple tools in the backup.