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

Exercise 2 – Using Wazuh to add PowerShell Script Block Logging

In this exercise, we are going to add PowerShell Script Block logs to the Wazuh collection capabilities set. PowerShell Script Block Logging is a feature that comes with later versions of PowerShell (PowerShell v5+). It allows us to instruct Windows to create an event log for every command run in the PowerShell Terminal. A recent trend sees attackers moving away from traditional means of targeting systems through specialized tools and applications, and favoring a living-off-the-land approach, where they use native tools present on the computer systems being attacked instead. These renewed tactics make monitoring for and blocking of malicious tools more difficult—what are you going to do: block cmd.exe or powershell.exe? So, being able to record every command run on these native tools is a welcome addition to security monitoring and is often the only way to detect malicious activities.

As an added bonus...