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  3. Trojan.Dozer


Risk Level 1: Very Low

July 8, 2009
July 11, 2009 1:47:04 AM
Infection Length:
67,072 bytes
Systems Affected:
Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows Server 2008, Windows Vista, Windows XP
Trojan.Dozer is a Trojan horse that performs distributed denial of service (DDoS) attacks.

For more information, please read the following:
Born on the 4th of July

Antivirus Protection Dates

  • Initial Rapid Release version July 8, 2009 revision 019
  • Latest Rapid Release version February 19, 2013 revision 016
  • Initial Daily Certified version July 8, 2009 revision 021
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date July 15, 2009
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Threat Assessment


  • Wild Level: Medium
  • Number of Infections: 1000+
  • Number of Sites: 10+
  • Geographical Distribution: High
  • Threat Containment: Easy
  • Removal: Easy


  • Damage Level: Low
  • Payload: Opens a back door on the compromised computer.
  • Deletes Files: Deletes certain files from the computer.
  • Modifies Files: Encrypts certain files on the computer.
  • Degrades Performance: Performs a distributed denial of service attack which may degrade performance.


  • Distribution Level: Low
Writeup By: Mario Ballano, Liam O Murchu, Kazumasa Itabashi, and Mircea Ciubotariu

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