How to repair damage from a hoax

� � � � � � � � � SULFNBK.EXE, a utility shipped as part of the Windows 98
operating system that allows users to restore long file names, and now the
victim of a bogus virus warning. The hoax message urges users to search
their systems for the presence of SULFNBK.EXE and, if found, delete it. Of
course, it's a legitimate Win98 operating system file, so anyone running
Windows 98 will find it. And many, it seems, have deleted it. Following are
the steps to take to restore SULFNBK.EXE from your Windows 98 operating
system CD. You will want to have your Windows 98 operating CD in the CD-ROM
drive bay. If the program autoruns (launches), just click Exit. A word of
caution. Any executable has the potential to be infected. Any executable
received via email should be considered infected until proven otherwise.
There is a vast difference between the SULFNBK.EXE file that legitimately
resides on your hard drive, and an SULFNBK.EXE arriving via email. The
Magistr virus randomly selects, infects, and sends portable executable files
(PE EXE) files less than 132Kb in length. This makes SULFNBK.EXE, with its
paltry 45,056 file size, a perfect candidate. Thus, if you were to receive
SULFNBK.EXE via email, consider it infected.

� � � � � � � � � Windows 98 includes a handy tool known as the System File
Checker which can be used to restore damaged or deleted files. To open SFC,
click "Start" | "Run" and type "SFC" without the quotes. Click "OK". System
File Checker will launch a dialogue box with two choices. Choose "Extract
one file from installation disk".

� � � � � � � � � In the "Specify the system file you would like to restore"
box, type "sulfnbk.exe" (without the quotes). Click "Start".

� � � � � � � � � You will be prompted to specify the location that contains
the file you want to extract and the destination directory for that file.
You will need to input the "Restore from" location and the "Save file in"
location.

� � � � � � � � � "Restore from" will be the win98 folder on your Windows 98
operating system CD. It is easiest and most accurate to use the "Browse"
button to locate and select the folder. The "Save file in" destination
folder is the Windows directory and Command subdirectory. For example,
� � � � � � � � � C:\WIN98\COMMAND

� � � � � � � � � When both boxes have been filled in, click OK. You should
receive a message stating "The file has been successfully extracted". Click
OK and close any remaining SFC dialog boxes.

� � � � � � � � � One final note, if you're one of the unfortunate who
purchased a computer that comes with the notorious "Restore CD" only, you
probably will not be able to use that CD to restore the file (or install new
hardware, or update/replace drivers, or do much of anything except restore
your system to factory defaults). Contact your computer vendor and ask them
to send you a true copy of the Windows 98 operating system that you
purchased with your system. Oh... and good luck getting them to send it.

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