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 5 – Creating a pfSense firewall event dashboard in Kibana

To be able to visualize the pfSense logs in Security Onion's Kibana tool, we will add a dashboard with relevant data.

The first thing we need to do to get pfSense alerts displayed on a Kibana dashboard is to define an event search filter. This will make working with firewall events easier and faster. The following instruction will have us create the firewall event search filter:

  1. Log in to Security Onion and open the Kibana tool from the left-side selection panel:

    Figure 9.30 – Exercise 5 – Kibana tool selector

  2. This opens a new tab for the Kibana Home page. From here, we select the Discover page via the Kibana menu (the button with three horizontal lines at the top left):

    Figure 9.31 – Exercise 5 – Kibana menu

  3. We now land on the Kibana Discover page, where we can perform searches for events and create and save custom search queries.
  4. Enter the search string...