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BotTrack: Tracking Botnets Using NetFlow and PageRank

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Executive Summary

With large scale botnets emerging as one of the major current threats, the automatic detection of botnet traffic is of high importance for service providers and large campus network monitoring. Faced with high speed network connections, detecting botnets must be efficient and accurate. This paper proposes a novel approach for this task, where NetFlow related data is correlated and a host dependency model is leveraged for advanced data mining purposes. The authors extend the popular linkage analysis algorithm PageRank with an additional clustering process in order to efficiently detect stealthy botnets using peer-to-peer communication infrastructures and not exhibiting large volumes of traffic.

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