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


Risk Level 1: Very Low

May 26, 2004
February 13, 2007 12:23:13 PM
Also Known As:
W32/Gaobot.worm.gen.e [McAfee]
Systems Affected:

W32.Gaobot.RB is a variant of W32.HLLW.Gaobot that attempts to spread to network shares. It allows access to an infected computer through an IRC channel.

The worm uses multiple vulnerabilities to spread, including:

W32.Gaobot.RB is compressed with ASPack, IHMOWrap3, and UPX.

Note: Virus definitions released on 3/17/2004 detect this threat as W32.HLLW.Gaobot.gen.

Antivirus Protection Dates

  • Initial Rapid Release version May 27, 2004
  • Latest Rapid Release version March 3, 2008 revision 035
  • Initial Daily Certified version May 27, 2004
  • Latest Daily Certified version March 3, 2008 revision 037
  • Initial Weekly Certified release date May 28, 2004
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Jeong Mun

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