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What is Domain generation algorithm (DGA)?

DEFINITION:
Domain generation algorithm (DGA) is a computer program used by various malware families to generate a large number of domains by creating slightly different variations of a certain domain name. The generated domains are used to hide traffic transmitted between the infected machines/networks and the command and control servers. This way, cyber criminals can cover their tracks and keep their anonymity from law enforcement and private cyber security organizations. For example, DGA domains are heavily used to hide botnets and the attacks they help launch.
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