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)
1
Section 1: ICS Cybersecurity Fundamentals
6
Section 2:Industrial Cybersecurity – Security Monitoring
12
Section 3:Industrial Cybersecurity – Threat Hunting
17
Section 4:Industrial Cybersecurity – Security Assessments and Intel
19
Chapter 15: Industrial Control System Risk Assessments
22
Section 5:Industrial Cybersecurity – Incident Response for the ICS Environment

Common passive security monitoring tools

In this section, we will discuss some common passive security monitoring tools. I have chosen a single tool for each of the three main disciplines of passive security monitoring, outlined as follows:

  • Network security monitoring (NSM)
  • IDS
  • Event log collection and aggregation

The tool I chose as representative for each category is indicative of its purpose and is chosen because that tool is the most common tool found in the field to perform the category's functions.

NSM

NSM is the art of indexing network traffic artifacts in a way that allows for—among other things—searching, correlating, and the discovery of anomalies, trends, patterns, malicious activities, and code.

By implementing network monitoring tools, we gain an insight into which devices are talking to each other on our network, including what they are talking about, how they talk, and how long for. Knowing this helps us discover...