I've had this problem for like the 5th time, the last 2 times being the worse. While downloading thru P2P or using Forte Agent, sometimes or should i say randomly, i will get the NT/Authorization something shutting down...u have 30 secs. After that incidence, certain programs just close down as soon as i double click on them. Ex: regedit, after the screen pops up, it disappears...leaving me no chance to even do a find. Another one, i try opening Norton Antivirus 2003 PE and the screen pops up telling me NA03 is not enabled...but as soon as i try to enable it, the screen closes. I uninstalled and installed, but it was a no go....i cant even get pass the SKIP reg and it shuts off.
You have a combination of a hijacker and multiple viruses. Your system is pretty well hosed, and fixing it will, no doubt, be difficult. I won't lie to you. These programs often cover their tracks by partially disabling stuff.
It sounds like theMS Blaster worm or one of its clones in action, to start with. They use the uselessly open service RPC on XP to install themselves and do their dirty deeds. You will have to take several steps to fix the problem.
Your first mistake was using P2P on an unsecured computer. Your patches are probably not up to date. To get around part of that, do the following, for starters:
1. Go to my malware page for more information. Download and run HijackThis . Post the results here.
2. While you are waiting for a reply, go to another machine and download the following: start with Symantec and download-and-run the latest version of FixBlast, a free stand-alone tool to remove this worm. and;
3. Go to the Gibson Research website. Download-and-run the program ShootTheMessenger.exe. There are other tools there, also.
Note: both these tools will fit on one floppy, so you can download them at a friend's house or computer store.
4. Make sure that all your XP patches are up-to-date.
5. Come back here and do a search on "Blaster" for more details.
6. You will likely also have to delete your System Restore files, as those have probably also been infected.