1. Symantec/
  2. Security Response/
  3. VBS.Gaggle.E@mm


Risk Level 2: Low

July 8, 2004
February 13, 2007 12:25:11 PM
Also Known As:
I-Worm.Gedza [Kaspersky], VBS/Gedza.A [F-Prot]
Systems Affected:

VBS.Gaggle.E is a variant of VBS.Gaggle.D. It is a mass-mailing worm that overwrites several files.

This worm can infect the following file types:
  • .vbs
  • .vbe
  • .js
  • .jse
  • .hta
  • .htm
  • .html
  • .php
  • .shtm
  • .shtml
  • .phtm
  • .phtml
  • .mht
  • .mhtml
  • .plg
  • .htx

The worm retrieves the email addresses from the files that have .hta, .htm, .html, .php, .shtm, .shtml, .phtm, .phtml, .mht, .mhtml, .plg, or .htx extensions. Then, it uses its own SMTP engine to send email to all the email addresses that it finds. The worm can also spread through ICQ, and some file-sharing networks.

The From field of the email is spoofed, the subject line and message vary, and the attachment is Filezip.zip.

Antivirus Protection Dates

  • Initial Rapid Release version July 8, 2004
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version July 8, 2004
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date July 14, 2004
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Kevin Ha

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