A prototype real-time intrusion-detection expert system

  • Authors:
  • Teresa F. Lunt;R. Jagannathan

  • Affiliations:
  • Computer Science Laboratory, SRI International, Menlo Park, California;Computer Science Laboratory, SRI International, Menlo Park, California

  • Venue:
  • SP'88 Proceedings of the 1988 IEEE conference on Security and privacy
  • Year:
  • 1988

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Abstract

This paper describes the design and implementation of a prototype intrusion-detection expert system (IDES) developed at SRI International. IDES is based on the concept that an intrusion manifests itself as a departure from expected behavior for a user. The prototype monitors users on a remote system using audit records which characterize their activities. It adaptively learns normal behavior of each user and detects and reports anomalous user behavior in real-time.