Book Image

Building a Next-Gen SOC with IBM QRadar

By : Ashish M Kothekar
Book Image

Building a Next-Gen SOC with IBM QRadar

By: Ashish M Kothekar

Overview of this book

This comprehensive guide to QRadar will help you build an efficient security operations center (SOC) for threat hunting and need-to-know software updates, as well as understand compliance and reporting and how IBM QRadar stores network data in real time. The book begins with a quick introduction to QRadar components and architecture, teaching you the different ways of deploying QRadar. You’ll grasp the importance of being aware of the major and minor upgrades in software and learn how to scale, upgrade, and maintain QRadar. Once you gain a detailed understanding of QRadar and how its environment is built, the chapters will take you through the features and how they can be tailored to meet specifi c business requirements. You’ll also explore events, flows, and searches with the help of examples. As you advance, you’ll familiarize yourself with predefined QRadar applications and extensions that successfully mine data and find out how to integrate AI in threat management with confidence. Toward the end of this book, you’ll create different types of apps in QRadar, troubleshoot and maintain them, and recognize the current security challenges and address them through QRadar XDR. By the end of this book, you’ll be able to apply IBM QRadar SOC’s prescriptive practices and leverage its capabilities to build a very efficient SOC in your enterprise.
Table of Contents (18 chapters)
Part 1: Understanding Different QRadar Components and Architecture
Part 2: QRadar Features and Deployment
Part 3: Understanding QRadar Apps, Extensions, and Their Deployment

Understanding flows and types of flows

In the earlier chapters, we learned that flows represent the metadata for a session between two hosts. The session can span from a few seconds to minutes to hours. So, unlike an event, which is a set of complete action in itself, a flow record has data collected over a period of time. There can be a number of flows that have the same first packet time and last packet time if the flow captures the session, which lasts for more than a minute.

Flow data along with event data offers irrefutable evidence that cybercrime has taken place. QRadar is a leading security solution that has integrated flows since its inception. Over the years, new types of flow sources have been integrated into QRadar. Fundamentally, there are two different types of flow sources – internal and external. Let’s look at them in detail.

Internal flow sources

Just as event collectors have the ecs-ec-ingress service to collect logs and send them to ecs-ec...