Domain Generation Algorithm Wiki
Originally posted on december 29 2017 today s post is all about dga s domain generation algorithms.
Domain generation algorithm wiki. I ve also written a c program that uses the same dga algorithm for generating the domain names which can be seen below. What are domain generation algorithms dgas. A domain generating algorithm dga is a program or subroutine that provides malware with new domains on demand or on the fly.
Cybereason published an excellent article a bazar of tricks. I have just modified one external link on domain generation algorithm. This has the advantage of making it much harder for defenders block track or take over the command and control channel as there.
A domain generation algorithm is a program that is designed to generate domain names in a particular fashion. What they are why they came into existence what are some use cases where they are used and most importantly how to detect and block them. 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 rendezvous points with their command and control servers the large number of potential rendezvous points makes it difficult for law enforcement to effectively shut down botnets since infected computers will attempt to.
Please take a moment to review my edit. 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. I made the following changes.
Domain generation algorithm from the kraken malware threatexpert walking through the assembly code shows that the domain is generated from a seeded algorithm which generates a complete url with. By hongliang liu and yuriy yuzifovich. The program defines a function with the same name generate domain which accepts current year month which influence the domain generation algorithm the function reserves some space on the stack for the domain variable which is 25 bytes long so it can hold the actual.
If you have any questions or need the bot to ignore the links or the page altogether please visit this simple faq for additional information. In contrast dgas use algorithms to periodically generate a large number of domain names which function as rendezvous points for malware command and. Later that year conficker made dga a lot more famous.