State-Based Network Intrusion Detection Systems for SCADA Protocols: A Proof of Concept

  • Andrea Carcano
  • Igor Nai Fovino
  • Marcelo Masera
  • Alberto Trombetta
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6027)

Abstract

We present a novel Intrusion Detection System able to detect complex attacks to SCADA systems. By complex attack, we mean a set of commands (carried in Modbus packets) that, while licit when considered in isolation on a single-packet basis, interfere with the correct behavior of the system. The proposed IDS detects such attacks thanks to an internal representation of the controlled SCADA system and a corresponding rule language, powerful enough to express the system’s critical states. Furthermore, we detail the implementation and provide experimental comparative results.

Keywords

Security SCADA systems critical infrastructures IDS 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Andrea Carcano
    • 2
  • Igor Nai Fovino
    • 1
  • Marcelo Masera
    • 1
  • Alberto Trombetta
    • 2
  1. 1.Joint Research CentreInstitute for the Protection and Security of the CitizenIspraItaly
  2. 2.University of InsubriaVareseItaly

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