An Improved Framework for Intrusion Alert Correlation

Provided by: International Association of Engineers
Topic: Security
Format: PDF
Alert correlation analyzes the alerts from one or more collaborative Intrusion Detection Systems (IDSs) to produce a concise overview of security-related activity on the network. The process consists of multiple components, each responsible for a different aspect of the overall correlation goal. The sequence order of the correlation components affects the correlation process performance. The total time needed for the whole process depends on the number of processed alerts in each component. This paper proposes a new correlation framework based on a model that reduces the number of processed alerts as early as possible by discarding the irrelevant and false alerts in the first phases.

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