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W32.Zotob.H

Risk Level 2: Low

Discovered:
August 17, 2005
Updated:
February 13, 2007 12:43:31 PM
Type:
Worm
Systems Affected:
Windows 2000


W32.Zotob.H is a worm that opens a back door and exploits the Microsoft Windows Plug and Play Buffer Overflow Vulnerability (as described in Microsoft Security Bulletin MS05-039) on TCP port 445.

Note: While computers running Windows 95/98/Me/NT4/XP operating systems cannot be infected remotely, it is possible they could be infected if W32.Zotob.H is executed locally (although this is an unlikely occurrence). Vulnerable Windows 2000 computers could then be infected by the compromised computer.

Antivirus Protection Dates

  • Initial Rapid Release version August 17, 2005
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version August 17, 2005
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date August 17, 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

Distribution

  • Distribution Level: Medium
Writeup By: Hyun Choi

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