Security BSides London 2018

IPFIX is the ratified standard for flow export. IPFIX was designed for security processes such as threat detection, overcoming the known drawbacks of network management based NetFlow. One major enhancement in IPFIX is template extensibility, allowing traffic capture at layers 3 through 7 of the OSI model. This talk introduces IPFIX and describes the creation of BotProbe - an IPFIX template specifically designed to capture botnet traffic communications from the analysis of almost 20 million botnet flows. BotProbe realises a 97% reduction in traffic volumes over traditional packet capture. Reduction of big data volumes of traffic not only opens up an opportunity to apply traffic capture in new areas such as pre-event forensics and legal traffic interception, but considerably improves traffic analysis times. Learn how IPFIX can be applied to botnet capture and other security threat detection scenarios.