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  3. W32.Janx


Risk Level 2: Low

December 11, 2004
February 13, 2007 12:30:55 PM
Systems Affected:
Windows 2000, Windows XP

W32.Janx is a worm that attempts to exploit the Microsoft Windows LSASS Buffer Overrun Vulnerability (Microsoft Security Bulletin MS04-011). The worm spreads by randomly scanning IP addresses for vulnerable systems. The worm also connects to an IRC server and waits for commands.

Antivirus Protection Dates

  • Initial Rapid Release version December 12, 2004
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version December 12, 2004
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date December 15, 2004
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Kaoru Hayashi

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