Intrusion detection using GSAD model for HTTP traffic on web services
Proceedings of the 6th International Wireless Communications and Mobile Computing Conference
Review Article: RePIDS: A multi tier Real-time Payload-based Intrusion Detection System
Computer Networks: The International Journal of Computer and Telecommunications Networking
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We propose a statistical model, namely Geometrical Structure Anomaly Detection (GSAD) to detect intrusion using the packet payload in the network. GSAD takes into account the correlations among the packet payload features arranged in a geometrical structure. The representation is based on statistical analysis of Mahalanobis distances among payload features, which calculate the similarity of new data against pre-computed profile. It calculates weight factor to determine anomaly in the payload. In the 1999 DARPA intrusion detection evaluation data set, we conduct several tests for limited attacks on port 80 and port 25. Our approach establishes and identifies the correlation among packet payloads in a network.