When is a computer virus not a computer virus? Usually when it's a hoax, but the latest hoax going around can still be damaging to your computer -- with you as a willing partner.
Although it's not a virus, you'll find it listed in all the virus watch websites. It can't infect your computer, but it's already caused plenty of computer glitches. It comes by e-mail, just as most computer viruses, but by itself, it cannot infect your computer.
Instead, it preys on your own fear of viruses, by asking you -- in an e-mail -- to delete files from your computer. Problem is: the file is it's asking you to delete is supposed to be there.
The so called warning arrives by e-mail. It gives detailed directions for deleting a file that's standard in most windows operating systems.
The file is sulfnbk.exe. It's an executable utility file used to restore long file names. Deleting it will not make your computer crash, but it may cause problems later on in restoring corrupted files.
Complicating matters is the fact that a recent virus worm with the name W32.Magistr.24876@mm can arrive as an attachment named sulfnbk.exe.
Bottom line: don't delete any files on the basis of an e-mail, even if it's from a friend, but do install, use, and upgrade your antivirus software weekly.