A survey on Botnet: Classification, detection and defense

In recent years, Botnets have become an important security problem on the Internet. Botnets have been used for many attacks, such as banking information theft, spam, distributed denial-of-service, identity theft and phishing. Then, they have been proposed as a major research topic in the network security. Although there are several surveys on the Botnets, they usually do not include a complete review on Botnet phenomenon. This paper is a survey on Botnets and provides a brief of classifications, techniques and algorithms of Botnet detection and defense. In this survey, we provide a comparison on existing research. We present an overview of studies on Botnet and discuss in detail including topologies, architectures, communication protocols, infection mechanisms, attacks, purposes, prevention techniques, detection sources and data, detection techniques and algorithms, and response techniques.