1. /
  2. Security Response/
  3. W32.Janx

W32.Janx

Risk Level 2: Low

Discovered:
December 11, 2004
Updated:
February 13, 2007 12:30:55 PM
Type:
Worm
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.

Threat Assessment

Wild

  • Wild Level: Low
  • Number of Infections: 0 - 49
  • Number of Sites: 0 - 2
  • Geographical Distribution: Low
  • Threat Containment: Easy
  • Removal: Easy

Damage

  • Damage Level: Medium

Distribution

  • Distribution Level: Medium
Writeup By: Kaoru Hayashi

Search Threats

Search by name
Example: W32.Beagle.AG@mm
STAR Antimalware Protection Technologies
Internet Security Threat Report, Volume 17
Symantec DeepSight Screensaver