Data-driven model-based detection of malicious insiders via physical access logs

Carmen Cheh, Binbin Chen, William G. Temple, William H. Sanders

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The risk posed by insider threats has usually been approached by analyzing the behavior of users solely in the cyber domain. In this paper, we show the viability of using physical movement logs, collected via a building access control system, together with an understanding of the layout of the building housing the system’s assets, to detect malicious insider behavior that manifests itself in the physical domain. In particular, we propose a systematic framework that uses contextual knowledge about the system and its users, learned from historical data gathered from a building access control system, to select suitable models for representing movement behavior. We then explore the online usage of the learned models, together with knowledge about the layout of the building being monitored, to detect malicious insider behavior. Finally, we show the effectiveness of the developed framework using real-life data traces of user movement in railway transit stations.

Original languageEnglish (US)
Title of host publicationQuantitative Evaluation of Systems - 14th International Conference, QEST 2017, Proceedings
EditorsNathalie Bertrand, Luca Bortolussi
PublisherSpringer-Verlag Berlin Heidelberg
Pages275-291
Number of pages17
ISBN (Print)9783319663340
DOIs
StatePublished - Jan 1 2017
Event14th International Conference on Quantitative Evaluation of Systems, QEST 2017 - Berlin, Germany
Duration: Sep 5 2017Sep 7 2017

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume10503 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Other

Other14th International Conference on Quantitative Evaluation of Systems, QEST 2017
CountryGermany
CityBerlin
Period9/5/179/7/17

Keywords

  • Cyber-physical systems
  • Insider threat
  • Intrusion detection
  • Physical access
  • Physical movement
  • User behavior

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)

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  • Cite this

    Cheh, C., Chen, B., Temple, W. G., & Sanders, W. H. (2017). Data-driven model-based detection of malicious insiders via physical access logs. In N. Bertrand, & L. Bortolussi (Eds.), Quantitative Evaluation of Systems - 14th International Conference, QEST 2017, Proceedings (pp. 275-291). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 10503 LNCS). Springer-Verlag Berlin Heidelberg. https://doi.org/10.1007/978-3-319-66335-7_17