Publication details

Collaborative Attack Detection in High-Speed Networks

Authors

REHÁK Martin PĚCHOUČEK Michal ČELEDA Pavel KRMÍČEK Vojtěch MINAŘÍK Pavel MEDVIGY David

Year of publication 2007
Type Article in Proceedings
Conference Multi-Agent Systems and Applications V
MU Faculty or unit

Faculty of Informatics

Citation
Web http://www.springerlink.com/content/e27202167v78u275/?p=851574cb079b4ac889eb4de3becfd054&pi=1
Field Informatics
Keywords multi-agent systems; attack detection; high-speed networks
Description We present a multi-agent system designed to detect malicious traffic in high-speed networks. In order to match the performance requirements related to the traffic volume, the network traffic data is acquired by hardware accelerated probes in NetFlow format and preprocessed before processing by the detection agent. The proposed detection algorithm is based on extension of trust modeling techniques with representation of uncertain identities, context representation and implicit assumption that significant traffic anomalies are a result of potentially malicious action. In order to model the traffic, each of the cooperating agents uses an existing anomaly detection method, that are then correlated using a reputation mechanism. The output of the detection layer is presented to operator by a dedicated analyst interface agent, which retrieves additional information to facilitate incident analysis. Our performance results illustrate the potential of the combination of high-speed hardware with cooperative detection algorithms and advanced analyst interface.
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