Need help eradicating a Trojan Horse

Factual Questions
1

I managed to wind up with a Trojan Horse on my computer, despite all my antivirus, spyware, and firewall software set to kill. I have the Backdoor.Prorat.2xxx trojan, and despite what Symantec says about manually swatting the beast, I can’t get the job done.

SOMETHING is buried deep within my PC to bring the beastie back to life each time I try to kill it. The general, exec summary of Symantec’s procedure is:
[ol]
[li]Shut off system restore (done that)[/li][li]Use regedit to reverse registry changes (done that)[/li][li]Reboot in safe mode, and delete all the program files (done that)[/li][/ol]
Yet, when I restart, there it is in all it’s fecking glory.

For the moment, I have my firewall set to disallow any net traffic by the TH components, just so I don’t become a spambot.

Anyone out there have advice/experience with this one?

2

After you do this, remain in safe mode, and then run your anti-virus stuff.

This also heled me out with a few things…

http://www.download.com/Zero-Spyware/3000-8022_4-10329083.html

3

I ended up pulling out my XP install disk, and booted off that. It had a repair option, which gave me console access without starting Windows. I could then delete all the TH files manually, which got rid of the d*mned thing.

Safe Mode didn’t work in this case, because the TH burrows into the XP code to the point that even Safe Mode starts it up, and I couldn’t delete because the file were in use.

4

Try downloading hijackthis and posting a log.