Your best bet is to get your log posted in the HJT forum as soon as possible. You've already been linked to the Prep Guide, but here it is again--please follow all those steps that apply to you: Preparation Guide For Use Before Posting A Hijackthis Log
Delete any copies of HijackThis.zip
that you may have saved on your system before beginning Step 9. When you follow the instructions in that step exactly your log should pop up in Notepad. If for some reason this doesn't happen, look in C:\Program Files\HijackThis folder for hijackthis.log
file. Any time you click on Save Log button after a scan or save it another way, this file will be saved in whatever folder HijackThis.exe is in.
You have a Vundo trojan. More info in the link below and it has a link for Symantec Removal Tool.
Hmm, that's an old guide for when Vundo had to be removed manually and is a bit outdated. Most of the time Symantec's removal tools will work for a day or two then the malware changes and it doesn't do much good. There is a more recent self-help guide for some removal tools that are kept more up to date here: http://www.bleepingcomputer.com/forums/t/18610/how-to-remove-winfixer-virtumonde-msevents-trojanvundob/
shred1970, you can try this process first, but I would still recommend posting a log, whether it works or not. Vundo may have changed since the last time these tools were updated and infections like these often come in bunches so there may be more that needs to be fixed that the tools aren't designed for.
Turn off system restore. This will remove all restore points since some are infected and will make scanning quicker. Turn system restore back on after you are malware free.
I have to disagree with turning off System Restore at this point. I know Symantec and other AV companies include this in their removal instructions, but it is more to cover their own backsides instead of reducing scanning time. Restore Points are protected by Windows and infections may be backed up there, but won't affect a system unless System Restore is used to "Go back". Most AV's can scan and find those infected backups, but can't remove them, which leads some to believe that they are still infected and that their AV is a POS if it can't fix it. It is the policy of most malware removal forums that use HJT and other tools that System Restore be enabled in case something goes south in the removal process. An infected Restore Point is better than none.