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  3. VBS.Lavra.B.Worm


Risk Level 1: Very Low

September 9, 2002
February 13, 2007 11:40:22 AM
Also Known As:
Trojan Horse
Systems Affected:
Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP

VBS.Lavra.B.Worm is a Trojan horse that is written in Microsoft Visual Basic Script. It attempts to delete antivirus and personal firewall software. In an attempt to spread, it copies itself as numerous files to the shared folders of several file-sharing programs.

NOTE: Definitions dated prior to September 12, 2002 may detect this as VBS.Thambl.

Antivirus Protection Dates

  • Initial Rapid Release version September 9, 2002
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version September 9, 2002
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date September 11, 2002
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Kaoru Hayashi

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