This warning is a hoax. DO NOT DELETE THIS FILE.. .from symantec:
Symantec Security Response encourages you to ignore any messages regarding this hoax. It is harmless and is intended only to cause unwarranted concern.
Type: Hoax
. .Description:
The following hoax email was first reported in Brazil, and the original email was in Portuguese. Other language versions are in circulation. Currently, the English language versions are most common.
. .CAUTIONS:
This particular email message is a hoax. The file that is mentioned in the hoax, however, Sulfnbk.exe, is a Microsoft Windows 95/98/Me utility that is used to restore long file names, and like any .exe file, it can be infected by a virus that targets .exe files.
NOTE: The Sulfnbk.exe file is not required to run Windows. It may be necessary if you need to restore long file names if the file names become corrupted. For additional information, read the Microsoft Knowledge Base article Description of Sulfnbk.exe and How to Replace the Program File (Q301316)
The virus/worm W32.Magistr.24876@mm can arrive as an attachment named Sulfnbk.exe. The Sulfnbk.exe file used by Windows is located by default in the C
Windows\Command folder.