Book Image

Learn Azure Sentinel

By : Richard Diver, Gary Bushey
Book Image

Learn Azure Sentinel

By: Richard Diver, Gary Bushey

Overview of this book

Azure Sentinel is a Security Information and Event Management (SIEM) tool developed by Microsoft to integrate cloud security and artificial intelligence (AI). Azure Sentinel not only helps clients identify security issues in their environment, but also uses automation to help resolve these issues. With this book, you’ll implement Azure Sentinel and understand how it can help find security incidents in your environment with integrated artificial intelligence, threat analysis, and built-in and community-driven logic. This book starts with an introduction to Azure Sentinel and Log Analytics. You’ll get to grips with data collection and management, before learning how to create effective Azure Sentinel queries to detect anomalous behaviors and patterns of activity. As you make progress, you’ll understand how to develop solutions that automate the responses required to handle security incidents. Finally, you’ll grasp the latest developments in security, discover 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 Azure Sentinel to fit your needs and be able to protect your environment from cyber threats and other security issues.
Table of Contents (22 chapters)
1
Section 1: Design and Implementation
4
Section 2: Data Connectors, Management, and Queries
9
Section 3: Security Threat Hunting
14
Section 4: Integration and Automation
17
Section 5: Operational Guidance

Working with Azure Sentinel Hunting queries

While there are a lot of pre-existing queries, with more being added all the time, there may be times when you need to add your own or modify an existing query to better suit your needs.

Adding a new query

To add a new query, click on the New Query button at the top of the Hunting page. This will open the Create custom query page, as shown in the following screenshot. This is very similar to creating a new scheduled query, as discussed in Chapter 7, Creating Analytic Rules, so you can read the Creating a new rule using the wizard section as a refresher:

Figure 10.7 – Adding a new query

Fill in the Name, Description, and Custom query fields. If your query has any entities, use the Entity mapping section to add the entity mapping to the query. Remember to add them one at a time. Finally, select one or more tactics (not shown in the screenshot) that this query is using.

Once all the information has been...