How Domain Generation Algorithm Works

This has the advantage of making it much harder for defenders block track or take over the command and control channel as.

How domain generation algorithm works. The use of public key cryptograph. The algorithm produces random looking domain names. Domain generation algorithms 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 rendezvous points with their command and control servers.

Domain generation algorithms dgas are used to auto generate domains typically in large numbers within the context of establishing a malicious command and control c2 communications channel. Dga based malware such as pushdo bankpatch and cryptolocker limit the number of domains from being blocked by hiding the location of their active c2. A domain generation algorithm is a program that is designed to generate domain names in a particular fashion.

Domain generation algorithm dga. The large number of potential rendezvous 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. Adversaries may make use of domain generation algorithms dgas to dynamically identify a destination domain for command and control traffic rather than relying on a list of static ip addresses or domains.

Domain generation algorithms dgas allow attackers to manage infection spreading websites and command and control c c deployments by altering domain names on a timely basis. Attackers developed dgas so that malware can quickly generate a list of domains that it can use for the sites that give it instructions and receive information from the malware usually referred to as command and control or c2. The idea is that two machines using the same algorithm will contact the same domain at a given time so they will be able to exchange information or fetch instructions.

A domain generation algorithm dga is a computer program that creates slightly different variations of a given domain name.