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Intrusion Alert Correlation Framework: An Innovative Approach

  • Huwaida Tagelsir Elshoush
  • Izzeldin Mohamed Osman
Chapter
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 229)

Abstract

Alert correlation analyzes the alerts from one or more collaborative intrusion detection systems (IDSs) to produce a concise overview of security-related activity on a 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 process performance. The total time needed for the whole process depends on the number of processed alerts in each component. An innovative alert correlation framework is introduced 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. A new component, shushing the alerts, is added to deal with the unrelated alerts. A modified algorithm for fusing the alerts is presented. The intruders’ intention is grouped into attack scenarios and thus used to detect future attacks. DARPA 2000 ID scenario specific datasets is used to evaluate the alert correlator model. The experimental results show that the correlation model is effective in achieving alert reduction and abstraction. The performance is improved after the attention is focused on correlating higher severity alerts.

Keywords

Alert correlation Alert correlation datasets Alert reduction  Collaborative intrusion detection systems False alarm rate Intrusion detection 

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Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  • Huwaida Tagelsir Elshoush
    • 1
  • Izzeldin Mohamed Osman
    • 2
  1. 1.Department of Computer Science, Faculty of Mathematical SciencesUniversity of KhartoumKhartoumSudan
  2. 2.Sudan University of Science and TechnologyKhartoumSudan

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