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<p>This thesis presents a methodology for incident response to identify anomalies and malicious adversary persistence within the networks responsible for the reliable operation of modern society’s critical infrastructure. The chapters provide relevant background on the historical development and function of industrial control systems (ICS) and their unique security issues. The study of public technical data from intrusions into control systems produces a set of known adversary tactics for incorporation into the methodology. This work further documents the development of a repeatable technique to collect digital forensic artifacts from production control systems that is compatible with the strict operational constraints of these critical networks. The technique is then applied with a proof-of-concept host-and network-based toolkit for incident response that is tested against real-world data. The goal of the methodology and the supplementary toolkit is to elicit valuable, previously-unavailable findings with which to assess the scope of malicious intrusions into critical ICS networks.
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<br>Subjects: Industrial Control Systems; Incident Response; SCADA; Digital Forensics</div>
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Carr, Nicholas B.</div>
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