I just found this file on my hard drive- it's worth checking yours....
Julie Gibson
Below is a forward that I just received.  This virus was found on my
hard drive, so please check yours immediately!
A virus "fnbk" has been found in my hard drive: I have received it
through email. It has been programmed to have a delay in its activation.
Cause of th delay McAfee and Nrtont antivirus had not been able to
detected it . Once he gets activated it will destroy all your files. The
virus is spreading throughout e mail and gets into the disc
'C:\\WINDOWS\COMMAND' Here is a way to get rid of it:
>Click start
>Click find file
>Select hard disk (C)
>The name of the file containing the virus is SULFNBK.EXE
>If the file is found, DO NOT OPEN IT, DELETE IT . MAKE SURE YOU EMPTY
YOU
>TRASH CAN AFTER THE OPERATION.
>If you have found the file, send this message to any person you have
>communicated through email in the last 6 months.