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VBS.Tresso.A

Discovered:
October 2, 2003
Updated:
February 13, 2007 12:08:30 PM
Type:
Worm
Systems Affected:
Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP

VBS.Tresso.A is a worm that attempts to copy itself to both the local host and to remote network shares.

VBS.Tresso.A creates 100 Streeme.id files on the Windows desktop.
  • There is a 20% probability that the worm will create a copy of itself, using an existing filename with the .vbe extension.
  • There is a 20% probability that the worm will recursively overwrite a file in every 30 subfolders.


Antivirus Protection Dates

  • Initial Rapid Release version October 3, 2003
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version October 3, 2003
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date October 8, 2003
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Kevin Ha

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