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  2. Security Response/
  3. Backdoor.Tidserv!gen8


Risk Level 1: Very Low

October 1, 2010
August 15, 2012 11:29:15 AM
Systems Affected:
Windows 2000, Windows 7, Windows NT, Windows Server 2003, Windows Server 2008, Windows Vista, Windows XP
Backdoor.Tidserv!gen8 is a heuristic detection used to detect threats associated with the Backdoor.Tidserv family.

For more information, please see the following resource:

Antivirus Protection Dates

  • Initial Rapid Release version October 1, 2010 revision 035
  • Latest Rapid Release version June 24, 2014 revision 006
  • Initial Daily Certified version pending
  • Latest Daily Certified version July 17, 2013 revision 016
  • Initial Weekly Certified release date October 6, 2010
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Threat Assessment


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


  • Damage Level: Medium
  • Payload Trigger: Web searches and other user activities on the compromised computer.
  • Payload: Opens a back door on the compromised computer, hijacks Web search results, and displays pop-up advertisements.
  • Modifies Files: Infects low-level driver files such as atapi.sys.
  • Causes System Instability: Infection of low level system files may result in instability of the operating system.


  • Distribution Level: Low

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