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W32.Linkbot.M

Risk Level 1: Very Low

Discovered:
May 21, 2005
Updated:
May 21, 2005 7:59:07 AM
Also Known As:
W32/Poebot-KF [Sophos], W32/Poebot-KO [Sophos], W32/Poebot-LR [Sophos], W32/Poebot-LQ [Sophos], W32/Poebot-MR [Sophos], W32/Poebot-MS [Sophos], W32/Poebot-MV [Sophos]
Type:
Worm
Infection Length:
90,624 bytes
Systems Affected:
Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP
CVE References:
CVE-2003-0533
W32.Linkbot.M is a worm that exploits the Microsoft Windows LSASS Buffer Overrun Vulnerability (BID 10108) in order to propagate. It also creates a back door on the compromised computer.

Antivirus Protection Dates

  • Initial Rapid Release version May 21, 2005
  • Latest Rapid Release version February 26, 2013 revision 035
  • Initial Daily Certified version May 21, 2005
  • Latest Daily Certified version February 27, 2013 revision 003
  • Initial Weekly Certified release date May 24, 2005
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
  • Payload: Opens a back door on the compromised computer.

Distribution

  • Distribution Level: Medium
  • Ports: Connects on TCP port 6667 and 10324. Listens on TCP port 113.
  • Target of Infection: Computers vulnerable to remotely exploitable vulnerabilities.
Writeup By: Hiroshi Shinotsuka

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