Yes, disable sytem restore:
http://download.nai.com/products/mcafee-avert/SystemHelpDocs/DisableSysRestore.htm
Run these, in order in Safe Mode with your updated Av:
Trojan Hunter trial version:
http://www.misec.net/
Trojan Scan:
http://www.windowsecurity.com/trojanscan/
SWATIT:
http://swatit.org/download.html
Diagnostics once you are clean:
Jason’s Browser Security Test:
http://www.jasons-toolbox.com/BrowserSecurity/
Gibson tests:
http://www.grc.com/default.htm
I use LeakTest, DCOMbobulator, ShieldsUp, and UnplugNpray
if you are geting trojans wither you need a friewall, or you need to reconsider the settings on the one you have, or get rid of it. This oneis free, simple and effective:
http://smb.sygate.com/products/spf_standard.htm
Thresher