1. Symantec/
  2. Security Response/
  3. W32.Gaobot.WO


Risk Level 2: Low

April 6, 2004
February 13, 2007 12:21:01 PM
Also Known As:
Backdoor.Agobot.lh [Kaspersky], W32/Gaobot.worm.gen.g [McAfee]
Systems Affected:

W32.Gaobot.WO is a variant of W32.Gaobot.gen. It attempts to spread through network shares that have weak passwords. It also allows attackers to access an infected computer through a predetermined IRC channel.

The worm uses multiple vulnerabilities to spread, including:

W32.Gaobot.WO is packed with FSG.

Note: Virus definitions version 60404al (extended version 4/4/2004 rev. 38) detect this threat as W32.HLLW.Gaobot.gen.

Antivirus Protection Dates

  • Initial Rapid Release version April 7, 2004
  • Latest Rapid Release version August 20, 2008 revision 017
  • Initial Daily Certified version April 7, 2004
  • Latest Daily Certified version August 20, 2008 revision 016
  • Initial Weekly Certified release date April 7, 2004
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Hiroshi Shinotsuka

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