Domain Generation Algorithm

Created the Tuesday 23 April 2019. Updated 3 years, 7 months ago.

Domain generation algorithms (DGA) are algorithms seen in various families of malware that are used to periodically generate a large number of domain names that can be used as rendez-vous points with their command and control servers.

The large number of potential rendez-vous points makes it difficult for law enforcement to effectively shut down botnets, since infected computers will attempt to contact some of these domain names every day to receive updates or commands. The use of public-key cryptography in malware code makes it unfeasible for law enforcement and other actors to mimic commands from the malware controllers as some worms will automatically reject any updates not signed by the malware controllers.


Technique Identifier

U0906

Technique Tag

DGA


Additional Resources

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