I just ran McAfee Virus Scan on the memory stick and it did not find anything.
It is obvious that it missed it. Previously on the memory stick were a number of folders, and also some files not in folders on the top level. Those folders were all replaced using the same names as the folders with .exe files.
So if there was a folder before that was named "Photos", now instead there was a .EXE file with the name Photos.exe. I use Display Extensions, so it was immediately obvious to me the virus had replaced my folders with itself. All the file sizes of these .exe files were 230K. There were about 10 folders replaced this way.
Now in the past when a similar virus has infected my USB, all I needed to do was scan it with McAfee, which would kill the virus one file at a time, and then after that go to Explore, Tools, Folder Options, View, choose Show Hidden Files and Folders (the virus had selected Do Not Show Hidden Files and Folders). All the old folders, which had been hidden, would then reappear.
This time when I do that, the lost folders don't reappear.
My first reaction was that they had been deleted by the virus.
However, when I go to Explorer and right click on my USB memory stick drive (it shows up as drive E there), it shows 170mb used, 330 free on the memory stick. I only have about 3mb of files left on this memory stick after deleting all the .exe files. As a double-check, I also deleted everything else that was still left on the USB memory stick, so there should be nothing left, totally empty. Well, no. Now when I right-click on the USB in Windows Explorer, it shows 167mb used. I think that the files were hidden on the USB in some new way that is not just hidden folders. The virus may also have hidden itself in there , but that's just speculation.
Any ideas how to fix this ? Any help would be appreciated.
Ideally, I'd love to be able to recover my folders and files on the USB again. If that's impossible, at least I'd like to be able to clean the memory stick so I can use it again knowing it's safe (and not lose a third of its total space to permanently emtombed files!).
Edited by Billermo, 23 August 2007 - 12:13 AM.