Book Image

IoT and OT Security Handbook

By : Smita Jain, Vasantha Lakshmi
Book Image

IoT and OT Security Handbook

By: Smita Jain, Vasantha Lakshmi

Overview of this book

The Fourth Industrial Revolution, or Industry 4.0, is all about digital transformation, manufacturing, and production. The connected world we live in today, including industries, comes with several cybersecurity challenges that need immediate attention. This book takes you through the basics of IoT and OT architecture and helps you understand and mitigate these security challenges. The book begins with an overview of the challenges faced in managing and securing IoT and OT devices in Industry 4.0. You’ll then get to grips with the Purdue model of reference architecture, which will help you explore common cyber attacks in IoT and OT environments. As you progress, you’ll be introduced to Microsoft Defender for IoT and understand its capabilities in securing IoT and OT environments. Finally, you will discover best practices for achieving continuous monitoring and vulnerability management, as well as threat monitoring and hunting, and find out how to align your business model toward zero trust. By the end of this security book, you’ll be equipped with the knowledge and skills to efficiently secure IoT and OT environments using Microsoft Defender for IoT.
Table of Contents (16 chapters)
1
Part 1: Understand the Challenges in IoT/OT Security and Common Attacks
5
Part 2: How Microsoft Defender for IoT Can Address the Open Challenges in the Connected World We Live in Today
9
Part 3: Best Practices to Achieve Continuous Monitoring, Vulnerability Management, Threat Monitoring and Hunting, and to Align the Business Model Toward Zero Trust
12
Chapter 9: Vulnerability Management and Threat Monitoring

The industrial malware detection engine

Understanding OT/IoT-based industrial malware is a must. The MDIoT detection engine contains this information to aid in better detection and alerting. Malicious activity on the network will be discovered by this engine.

In Figure 8.4, we can see the Suspicion of Malicious Activity pane in the MDIoT Alerts section. From the name itself, we understand that this attack could lead to exploitation by known malware – hence, further action is required from the Security Operations Center (SOC) or the admin team:

Figure 8.4 – The industrial malware detection engine

To gather further information about the malware, we can look into the full details of the Suspicion of Malware Activity alert:

Figure 8.5 – Industrial malware detection engine: Triton malware

We can see that the name of the known malware is Triton malware. The lateral movement attempted by Triton malware is shown in the...