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12278 Approaches in Anomaly-based Network Intrusion Detection Systems
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Bolzoni, D. and Etalle, S. (2008) Approaches in Anomaly-based Network Intrusion Detection Systems. In: Intrusion Detection Systems. Advances in Information Security 38. Springer Verlag, London, pp. 1-16. ISBN 978-0-387-77265-3

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Anomaly-based network intrusion detection systems (NIDSs) can take into consideration packet headers, the payload, or a combination of both. We argue that payload-based approaches are becoming the most effective methods to detect attacks. Nowadays, attacks aim mainly to exploit vulnerabilities at application level: thus, the payload contains the most important information to differentiate normal traffic from anomalous activity. To support our thesis, we present a comparison between different anomaly-based NIDSs, focusing in particular on the data analyzed by the detection engine to discover possible malicious activities. Furthermore, we present a comparison of two payload and anomaly-based NIDSs: PAYL and POSEIDON.

Item Type:Book Section
Research Group:EWI-DIES: Distributed and Embedded Security
Research Program:CTIT-ISTRICE: Integrated Security and Privacy in a Networked World
Research Project:IPID: Integrated Policy-based Intrusion Detection
ID Code:12278
Deposited On:22 April 2008
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