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  3. Trojan.Zeroaccess!g42


Risk Level 1: Very Low

May 7, 2013
May 8, 2013 4:23:50 AM
Systems Affected:
Windows 7, Windows NT, Windows Vista, Windows XP
Trojan.Zeroaccess!g42 is a heuristic detection used to detect threats associated with Trojan.Zeroaccess.

For more information, please see the following resource:

Antivirus Protection Dates

  • Initial Rapid Release version May 7, 2013 revision 034
  • Latest Rapid Release version May 7, 2013 revision 034
  • Initial Daily Certified version May 8, 2013 revision 003
  • Latest Daily Certified version May 8, 2013 revision 003
  • Initial Weekly Certified release date May 8, 2013
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Threat Assessment


  • Wild Level: Low
  • Number of Infections: 50 - 999
  • Number of Sites: 0 - 2
  • Geographical Distribution: Low
  • Threat Containment: Easy
  • Removal: Difficult


  • Damage Level: Medium
  • Payload: Downloads more malware and opens a back door on the compromised computer.
  • Compromises Security Settings: Disables security-related applications.


  • Distribution Level: Low
Note: On May 14, 2015, modifications will be made to the threat write-ups to streamline the content. The Threat Assessment section will no longer be published as this section is no longer relevant to today's threat landscape. The Risk Level will continue to be the main threat risk assessment indicator.

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