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  2. Security Response/
  3. VBS.Fit.A


Risk Level 1: Very Low

December 30, 2002
February 13, 2007 11:58:35 AM
Systems Affected:
Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP

VBS.Fit.A is a .vbs worm that copies itself to open network shares on computers within the IP range to The existence of the file MSNetldr.vbs is the sign of a possible infection.

Antivirus Protection Dates

  • Initial Rapid Release version December 31, 2002
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version December 31, 2002
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date December 31, 2002
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Eric Chien

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