Detection of Covert Botnet Command and Control Channels by Causal Analysis of Traffic Flows


The Command and Control communication of a botnet is evolving into sophisticated covert communication. Techniques as encryption, steganography, and recently the use of social network websites as a proxy, impede conventional detection of botnet communication. In this paper we propose detection of covert communication by passive hostexternal analysis of… (More)
DOI: 10.1007/978-3-319-03584-0_10


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