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


Risk Level 1: Very Low

January 12, 2004
February 13, 2007 12:16:02 PM
Also Known As:
W32/Gaobot.worm.gw [McAfee]
Systems Affected:

W32.HLLW.Gaobot.FQ is a minor variant of W32.HLLW.Gaobot.BF. It attempts to spread to 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.HLLW.Gaobot.FQ is compressed with UPX and encrypted with PCGuard.

Antivirus Protection Dates

  • Initial Rapid Release version January 13, 2004
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version January 13, 2004
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date January 14, 2004
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Yuhui Huang

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