Data Reduction in Intrusion Alert Correlation

Tedesco, Gianni and Aickelin, Uwe (2006) Data Reduction in Intrusion Alert Correlation. WSEAS Transactions on Computers . pp. 186-193.

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Abstract

Network intrusion detection sensors are usually built around low level models of network traffic. This means that their output is of a similarly low level and as a consequence, is difficult to analyze. Intrusion alert correlation is the task of automating some of this analysis by grouping related alerts together. Attack graphs provide an intuitive model for such analysis. Unfortunately alert flooding attacks can still cause a loss of service on sensors, and when performing attack graph correlation, there can be a large number of extraneous alerts included in the output graph. This obscures the fine structure of genuine attacks and makes them more difficult for human operators to discern. This paper explores modified correlation algorithms which attempt to minimize the impact of this attack.

Item Type: Article
Uncontrolled Keywords: Intrusion Detection Systems, Alert Correlation, Attack Graphs, Denial of Service Attacks, Token Bucket Filter
Schools/Departments: University of Nottingham UK Campus > Faculty of Science > School of Computer Science
Depositing User: Aickelin, Professor Uwe
Date Deposited: 31 Mar 2006
Last Modified: 22 Nov 2007 09:46
URI: http://eprints.nottingham.ac.uk/id/eprint/365

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