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

Creating an analytic rule

As mentioned before, there are two ways to create rules. You can either use a rule template to create a rule or you can create a new one from scratch using the built-in wizards. Let's first try and do this using a rule template.

Creating a rule from a rule template

To use a rule template to create a rule, all you need to do is to select the rule in the list of rule templates. If you are able to create the rule, which can mean that you have all of the needed data sources and, in some cases, you have not already used this rule template to create a rule, then, at the bottom of the rule details pane on the right side of the screen will be a Create rule button. Click it to create the rule.

Note

As stated previously, if this button is grayed out, then there will be some highlighted text above it explaining why. Referring back to Figure 7.8, you will notice that we are unable to create a rule from the selected template due to missing data sources...