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W32.Korgo.L

Risk Level 2: Low

Discovered:
June 17, 2004
Updated:
February 13, 2007 12:24:29 PM
Type:
Worm
Systems Affected:
Windows 2000, Windows XP
CVE References:
CAN-2003-0533


W32.Korgo.L is a variant of W32.Korgo.I. This worm attempts to propagate by exploiting the Microsoft Windows LSASS Buffer Overrun Vulnerability (described in Microsoft Security Bulletin MS04-011) on TCP port 445. It also listens on TCP ports 113, 3067, and other random ports (256-8191).


Note: Symantec Security Response has developed a removal tool to clean the infections of W32.Korgo.L.



Antivirus Protection Dates

  • Initial Rapid Release version June 17, 2004
  • Latest Rapid Release version August 20, 2008 revision 017
  • Initial Daily Certified version June 17, 2004
  • Latest Daily Certified version August 20, 2008 revision 016
  • Initial Weekly Certified release date June 19, 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: Moderate

Damage

  • Damage Level: Medium

Distribution

  • Distribution Level: Medium
Writeup By: Paul Mangan

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