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


Risk Level 1: Very Low

April 1, 2004
February 13, 2007 12:20:35 PM
Also Known As:
Backdoor.Agobot.kh [Kaspersky]
Systems Affected:

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

The worm uses multiple vulnerabilities to spread, including:

W32.Gaobot.UJ is packed first with ASPack, and then with Morphine.

Antivirus Protection Dates

  • Initial Rapid Release version April 1, 2004
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version April 1, 2004
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date April 1, 2004
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Yuhui Huang

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