1. Symantec/
  2. Security Response/
  3. W32.HLLW.Gaobot.BZ


Risk Level 1: Very Low

November 1, 2003
February 13, 2007 12:13:11 PM
Also Known As:
W32/Gaobot.worm.gen [McAfee]
Systems Affected:

W32.HLLW.Gaobot.BZ is a minor variant of W32.HLLW.Gaobot.AO. It attempts to spread to network shares that have weak passwords and allows hackers to access an infected computer through an IRC channel.

The worm uses multiple vulnerabilities to spread, including: W32.HLLW.Gaobot.BZ is compressed with ASPack and UPX.

Antivirus Protection Dates

  • Initial Rapid Release version November 1, 2003
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version November 1, 2003
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date November 1, 2003
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Robert X Wang

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