Book Image

Industrial Cybersecurity - Second Edition

By : Pascal Ackerman
Book Image

Industrial Cybersecurity - Second Edition

By: Pascal Ackerman

Overview of this book

With Industrial Control Systems (ICS) expanding into traditional IT space and even into the cloud, the attack surface of ICS environments has increased significantly, making it crucial to recognize your ICS vulnerabilities and implement advanced techniques for monitoring and defending against rapidly evolving cyber threats to critical infrastructure. This second edition covers the updated Industrial Demilitarized Zone (IDMZ) architecture and shows you how to implement, verify, and monitor a holistic security program for your ICS environment. You'll begin by learning how to design security-oriented architecture that allows you to implement the tools, techniques, and activities covered in this book effectively and easily. You'll get to grips with the monitoring, tracking, and trending (visualizing) and procedures of ICS cybersecurity risks as well as understand the overall security program and posture/hygiene of the ICS environment. The book then introduces you to threat hunting principles, tools, and techniques to help you identify malicious activity successfully. Finally, you'll work with incident response and incident recovery tools and techniques in an ICS environment. By the end of this book, you'll have gained a solid understanding of industrial cybersecurity monitoring, assessments, incident response activities, as well as threat hunting.
Table of Contents (26 chapters)
Section 1: ICS Cybersecurity Fundamentals
Section 2:Industrial Cybersecurity – Security Monitoring
Section 3:Industrial Cybersecurity – Threat Hunting
Section 4:Industrial Cybersecurity – Security Assessments and Intel
Chapter 15: Industrial Control System Risk Assessments
Section 5:Industrial Cybersecurity – Incident Response for the ICS Environment

Exercise – Adding an AlienVault OTX threat feed to Security Onion

As an example of what threat information can add to overall security monitoring effectiveness, we shall add a threat feed to our Security Onion deployment. As mentioned throughout this chapter, threat feeds, or IOC feeds, by themselves are not threat intelligence; however, adding a threat feed to your SIEM does allow you to perform some rudimentary threat intelligence activities.

As a source of threat IOC information, I have chosen the AlienVault Open Threat Exchange (OTX) service. The reason for this is that their threat feed is constantly updated, accurate, and includes many different sources of information and types of IOCs, but also because their online community and the forums that come with the free subscription to the OTX platform are extremely valuable once you decide to take threat intelligence a step further and want to proactively start mapping threats to your environment.

The AlienVault threat...