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Since most of current intrusion detection systems (IDS) only use one of the two detection methods, misused detection or anomaly detection, both of them have their own limitations. In this paper, the technique that combines misuse detection system with anomaly detection system (ADS) is used. The hybrid intrusion detection system (HIDS) contains three sub-modules, misused detection module, anomaly detection module and signature generation module. The basis of misused detection module is snort. Anomaly detection module is constructed by using frequent episode rule. And signature generation module is based on a variant of a priori algorithm. Misused detection module uses the signature of attacks to detection the known attacks. Anomaly detection module can detect the unknown attacks and signature generation module extracts the signature of attacks that are detected by ADS module, and maps the signatures into snort rules.
Machine Learning and Cybernetics, 2009 International Conference on (Volume:3 )
Date of Conference: 12-15 July 2009