Try Hitman Pro Trial Version:
http://www.surfright.nl/en/hitmanpro
This program may be run from a flash drive if needed.

superantispyware be sure and update before scanning- if it starts without updating stop and update

http://www.sophos.com/en-us/products/free-tools/sophos-anti-rootkit.aspx

post the logs

should lower the noise

do not run combofix or others without without a helper