According to the Symantic website (vendor of Norton Virus protection
software), this is a hoax.  the file is a valid Windows file.  for more
information see www.symantec.com/avcenter/venc/data/sulfnbk.exe.warning.html

At 12:03 PM 4/11/02 -0400, Iona McCraith wrote:
>Dear Friends and Colleagues,
>
>Please check your computer for a virus in your hard drive.  I received one
>in my C drive (despite having an up-to-date Anti Virus program running) and
>so far it has apparently infected several computers.   Apparently it has so
>far not been detected by Norton or  some of the other anti-virus software.
>If you have the virus it will affect your address book.  It is however easy
>to remove.  The virus hides in your computer for two weeks and then damages
>the hard drive irreparably.  YOU NEED TO ACT NOW.
>
>I received the virus through my mailing list and have now deleted it after
>receiving the warning from a friend.  Apparently this virus will send itself
>to every address in the address book on your computer.  Since you are in my
>address book it will probably get to you.  Please take the time to remove it
>now.  Sorry for the inconvenience.
>
>The directions to remove it are as follows:  The virus is called sulfnbk.exe
>
>1. Go to "Start" and click on "Find" or "Search"
>
>2. In the box "Find files or folders" write sulfnbk.exe (the virus name)
>
>3. Make sure you are searching the C drive
>
>4. Click on "Find" or "Search"
>
>5. If the file is found you will see a black icon  (kind of looks like
>microsoft logo) with the name "sulfnbk.exe"
>     The file is a program... DO NOT open it!  If it does not appear,  try
>the procedure again.
>
>6.With the curser on the file, click on the right mouse button, and then
>click "delete" with the left mouse button.
>
>7.When you are asked if you want to send the file to the Trash or Delete -
>click "yes"
>
>8. Go to your desktop (where the icons are) and open the Trash can and
>delete the file, manually or by emptying the entire trashbasket.
>
>9. If you found this virus in your computer, send this email to ALL the
>people listed in your address book, because the virus is transmitted this
>way.  If you don't, aside from ruining their hard drive, the virus will come
>back to you, if you are in their address book.
>
>Sorry again for the trouble but it's important you check.
>Iona McCraith