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Discovered:
- February 25, 2003
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Updated:
- February 13, 2007 11:43:34 AM
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Type:
- Worm
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Systems Affected:
- Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP
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
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Initial Rapid Release version February 26, 2003
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Latest Rapid Release version September 28, 2010 revision 054
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Initial Daily Certified version February 26, 2003
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Latest Daily Certified version September 28, 2010 revision 036
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Initial Weekly Certified release date February 26, 2003
Click for a more detailed description of Rapid Release and Daily Certified virus definitions.
Threat Assessment
Wild
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Wild Level: Low
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Number of Infections: 0 - 49
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Number of Sites: 0 - 2
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Geographical Distribution: Low
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Threat Containment: Easy
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Removal: Moderate
Writeup By: Jason Pan
