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 4 – Sending SilentDefense alerts to Security Onion syslog

This chapter is all about getting a handle on information, making it so that we see the most relevant information first, conveniently and decisively. What is more decisive than an alert from our OT IDS (SilentDefense), alerting us that someone or something is causing issues? At this moment, those alerts are only generated in the SilentDefense Command Center portal and displayed in there. We want to transport those alerts to Security Onion so that we can add them to the Elasticsearch database, allowing us to include the alert data, and other interesting data collected by SilentDefense, in our correlation efforts and searches.

Follow these instructions to get SilentDefense alerts and network logs sent over to the syslog service of the Security Onion VM:

  1. The first thing we need to do is to allow syslog access to Security Onion from the SilentDefense Command Center server (172.25.100.240). SSH into the...