1. Symantec/
  2. Security Response/
  3. Backdoor.Regin


Risk Level 1: Very Low

December 12, 2013
January 16, 2017 11:22:29 AM
Infection Length:
Systems Affected:
Backdoor.Regin is a Trojan horse that opens a back door and steals information from the compromised computer.

Backdoor.Regin is an extremely complex back door Trojan that enables stealthy surveillance activities. It can be customized with a wide range of different capabilities, which can be deployed depending on the target. It is a multi-staged, modular threat, meaning that it has a number of components, each depending on each other to perform attack operations.

Further information
For more information on Backdoor.Regin, read our blog: Regin: Top-tier espionage tool enables stealthy surveillance

Note: Definitions prior to November 24, 2014 may detect this threat as Backdoor.Trojan.GR.

Antivirus Protection Dates

  • Initial Rapid Release version December 12, 2013 revision 021
  • Latest Rapid Release version September 22, 2016 revision 024
  • Initial Daily Certified version December 12, 2013 revision 024
  • Latest Daily Certified version September 22, 2016 revision 025
  • Initial Weekly Certified release date December 18, 2013
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

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STAR Antimalware Protection Technologies
2016 Internet Security Threat Report, Volume 21
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