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  3. RingZero.Trojan


Risk Level 1: Very Low

October 26, 1999
February 13, 2007 11:54:35 AM
Also Known As:
RingZero.gen Trojan, Trojan.Rhino
Trojan Horse

This Trojan runs as a hidden process, and it sends and retrieves data over an Internet connection.

Antivirus Protection Dates

  • Initial Rapid Release version October 26, 1999
  • Latest Rapid Release version March 6, 2015 revision 035
  • Initial Daily Certified version October 26, 1999
  • Latest Daily Certified version March 7, 2015 revision 003
  • Initial Weekly Certified release date pending
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: Low


  • 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.
Writeup By: Wason Han

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