1. Symantec/
  2. Security Response/
  3. VBS.Lisa.A@mm


Risk Level 1: Very Low

February 25, 2003
February 13, 2007 11:43:34 AM
Systems Affected:

VBS.Lisa.A@mm is a mass-mailing worm that is written in the Visual Basic Scripting (VBS) language. This worm attempts to spread through Microsoft Outlook, mIRC, and KaZaA. The email arrives with a subject of "Click YES and vote against war!". There is no mail attachment as the worm is distributed as script in the body of the email.

VBS.Lisa.A@mm may create up to 5,000 folders on the C drive and may delete critical system files. On Windows 95/98/Me computers, the worm may format the C drive.

NOTE: Virus definitions dated prior to February 26, 2003 may detect this as Bloodhound.VBS.Worm.

Antivirus Protection Dates

  • Initial Rapid Release version February 26, 2003
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version February 26, 2003
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date February 26, 2003
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Jason Pan

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