Book Image

Microsoft Sentinel in Action - Second Edition

By : Richard Diver, Gary Bushey, John Perkins
Book Image

Microsoft Sentinel in Action - Second Edition

By: Richard Diver, Gary Bushey, John Perkins

Overview of this book

Microsoft Sentinel is a security information and event management (SIEM) tool developed by Microsoft that helps you integrate cloud security and artificial intelligence (AI). This book will teach you how to implement Microsoft Sentinel and understand how it can help detect security incidents in your environment with integrated AI, threat analysis, and built-in and community-driven logic. The first part of this book will introduce you to Microsoft Sentinel and Log Analytics, then move on to understanding data collection and management, as well as how to create effective Microsoft Sentinel queries to detect anomalous behaviors and activity patterns. The next part will focus on useful features, such as entity behavior analytics and Microsoft Sentinel playbooks, along with exploring the new bi-directional connector for ServiceNow. In the next part, you’ll be learning how to develop solutions that automate responses needed to handle security incidents and find out more about the latest developments in security, techniques to enhance your cloud security architecture, and explore how you can contribute to the security community. By the end of this book, you’ll have learned how to implement Microsoft Sentinel to fit your needs and protect your environment from cyber threats and other security issues.
Table of Contents (23 chapters)
1
Section 1: Design and Implementation
4
Section 2: Data Connectors, Management, and Queries
9
Section 3: Security Threat Hunting
15
Section 4: Integration and Automation
18
Section 5: Operational Guidance

Writing a query

Now that you have seen how to use the Logs page in Microsoft Sentinel, it's time to use your new skills to write your own queries. No matter what the query is, there are a few basic steps you will take to create your query:

  1. Have an idea of what information you are looking for. Do you need to know which computers are currently active? What actions a user performed in SharePoint? What data has been ingested? This will give you an idea of what log(s) you will need to look at. Look at Chapter 11, Threat Hunting in Microsoft Sentinel, for information on one way to keep track of this data.
  2. Once you have an idea of which table you want to look at, the next step is to look at a small number of rows in that table to get a better understanding of the data that is stored in it.

    One of the easiest ways to do this is to find the table in the Tables pane, hover over it, and click on the See preview data link in the pop-up window. This will show up to 10 rows from...