Finding a Disappearing Application in Windows?

siuengr asks: "I have a computer that has a window that pops up every few minutes, but disappears before I can figure out what it is. I have run every virus program and spybot cleaner I have, but they do not find any problems. How can I figure what is causing this window to pop-up all the time, when it doesn't stick around long enough to see anything about it? Is there any software that tracks what applications have ran over a period of time, even if they are not currently running?"

Comments

Root-Kit?

[UltimApe]

Why hasn't anyone mentioned root-kits?

My gf's computer had a root-kit on it. I go to a tech school, and nearly everyone knowledgeable here (even IT guys) went over the damn thing to see what was wrong. It kept doing pop-ups, like it had some type of ad-ware, but it didn't appear to have anything abnormal running. It didn't matter if it was IE or firefox, the ad would pop up on pretty regular intervals. Every possible thing was checked, from using standard tools like spy-bot-s&d, any number of free and bought virus scanners... Some people (including me) even poured over the registry by hand to find out if anything was running. absolutely nothing.

It turned out to be a ROOT-KIT (2 actually, they hid each other. One user-mode, and one kernel-mode). The rogue programs actually were able to make windows "not see" the file. On boot, windows would see it just enough to turn it on, but after it was running it prevented anything from actually finding it, injecting code between the hard-disk access and low-level windows stuff. not windows-explorer, not regedit, not task-manager, not even 3rd party apps like win-task, or even defraggers.

http://www.sysinternals.com/Utilities/RootkitRevea ler.html - RootkitRevealer 1.7 by Sysinternals showed a directory in "C:/windows", and one in "C:/program files", that if you went to look normally, didn't show up. I quickly booted up Knoppix and verified that there was some crap in there, but a search on the Internet showed nothing. Booted windows into safe mode, and since safemode doesn't run things other than windows crap, I was able to delete the two folders, and even a registry entry that showed up about it.

If you can't find anything, maybe its because it won't let you find it!