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An effective Collaborative Intrusion Detection Network (CIDN) allows distributed Intrusion Detection Systems (IDSes) to collaborate and share their knowledge and opinions about intrusions, to enhance the overall accuracy of intrusion assessment as well as the ability of detecting new classes of intrusions. Toward this goal, we propose a distributed Host-based IDS (HIDS) collaboration system, particularly focusing on acquaintance management where each HIDS selects and maintains a list of collaborators from which they can consult about intrusions. Specifically, each HIDS evaluates both the false positive (FP) rate and false negative (FN) rate of its neighboring HIDSes' opinions about intrusions using Bayesian learning, and aggregates these opinions using a Bayesian decision model. Our dynamic acquaintance management algorithm allows each HIDS to effectively select a set of collaborators. We evaluate our system based on a simulated collaborative HIDS network. The experimental results demonstrate the convergence, stability, robustness, and incentive-compatibility of our system.
Network and Service Management, IEEE Transactions on (Volume:9 , Issue: 3 )
Date of Publication: September 2012