Geeze, what a nightmare!
I recently had a trojan that several well known anti-virus and anti-malware programs could not kill but one product wiped it out without a problem; it was the free version of SUPERAntiSpyware. I was so happy that I paid for their Professional Version.
In case you want to give it a try, here is their website:
http://www.superantispyware.com/index.html
Good luck,
Dan