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


Risk Level 2: Low

August 21, 2003
February 13, 2007 12:05:30 PM
Also Known As:
W32/Gaobot.worm.y [McAfee], WORM_AGOBOT.P [Trend]
Systems Affected:

W32.HLLW.Gaobot.AA is a worm that attempts to spread to the network shares with weak passwords. The worm uses multiple vulnerabilities, including:

This threat also allows for a hacker to remotely access an infected computer through IRC.

W32.HLLW.Gaobot.AA is compressed with UPX.

Antivirus Protection Dates

  • Initial Rapid Release version August 21, 2003
  • Latest Rapid Release version August 8, 2016 revision 023
  • Initial Daily Certified version August 21, 2003
  • Latest Daily Certified version August 9, 2016 revision 001
  • Initial Weekly Certified release date August 27, 2003
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Kaoru Hayashi

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STAR Antimalware Protection Technologies
2016 Internet Security Threat Report, Volume 21
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