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Erschienen in:
2013 | OriginalPaper | Buchkapitel
Towards Learning Normality for Anomaly Detection in Industrial Control Networks
verfasst von : Franka Schuster, Andreas Paul, Hartmut König
Erschienen in: Emerging Management Mechanisms for the Future Internet
Verlag: Springer Berlin Heidelberg
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Recent trends in automation technology lead to a rising exposition of industrial control systems (ICS) to new vulnerabilities. This requires the introduction of proper security approaches in this field. Prevalent in ICS is the use of access control. Especially in critical infrastructures, however, preventive security measures should be complemented by reactive ones, such as intrusion detection. Beginning from the characteristics of automation networks we outline the implications for a suitable application of intrusion detection in this field. On this basis, an approach for creation of self-learning anomaly detection for ICS protocols is presented. In contrast to other approaches, it takes all network data into account: flow information, application data, and the packet order. We discuss the challenges that have to be solved in each step of the network data analysis to identify future aspects of research towards learning normality in industrial control networks.