I am not familiar with hitmanpro, but if it found something that tdsskiller did not, I would be wary.
Quarantine it and see what happens.
You can always go with my last option which is combofix.exe but let me know before you choose to do this step.
I also forgot to mention that you MUST run and save the tdsskiller.exe on your desktop. Or it won't work properly. Here is the basic use for it:
http://www.bleepingcomputer.com/forums/topic377240.html