Hello, andy, you have something with the appearance of a vundo infection. For your next hijackthis scan please delete your copy of hijackthis.exe and download this: http://www.majorgeeks.com/download5554.html
Please then rename hijackthis.exe to imabunny.exe - this is important.
==Please download VundoFix.exe to your desktop from http://www.atribune.org/ccount/click.php?id=4
=Restart your system in Safe Mode.
Double-click VundoFix.exe to start it. Click the Scan for Vundo button.
When the scan completes click the Remove Vundo button.
You will receive a prompt asking if you want to remove the files - click YES
Your desktop will then go blank as the process of removing Vundo starts.
When completed it will prompt that it will restart your computer - click OK.
Note: It is possible that VundoFix encountered a file it could not remove. In this case, VundoFix will run on reboot, simply follow the above instructions starting from "Click the Scan for Vundo button." when VundoFix appears at reboot.
!!! Check the Vundofix log for any found files that were not deleted - if present rerun Vundofix !!!
Post the contents of C:\vundofix.txt plus a new HijackThis log.
That scan/fixer is to catch any other files which may not show in your log.... I do know this next will fix what I can see there:
==Download this file to your desktop: http://download.bleepingcomputer.com/sUBs/ComboFix.exe
- to run it dclick combofix.exe and follow the prompts to start it[ normal mode will do]. When finished, it will produce a log, C:\Combofix.txt - post that log in your next reply.
A word of caution - do not touch your mouse/keyboard until the scan has completed. The scan will temporarily disable your desktop, and if interrupted may leave your desktop disabled. If this occurs, please reboot to restore the desktop.
Post those logs plus a fresh hijackthis scan run in normal mode.