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 a simple Azure Sentinel playbook

This example will take you step by step through the process of creating a new Azure Sentinel playbook. The scenario we are solving is notifying our security analysts using Microsoft Teams that a new, high-severity incident was created.

The first step is to create a new playbook that Azure Sentinel can use. Remember that for Azure Sentinel to be able to use a playbook, it must use the Azure Sentinel connector:

  1. Go to the Azure Sentinel playbook screen and click the Add Playbook button in the header. Follow the Creating a new playbook section to add a new playbook. For this playbook, I am calling it BookDemo. Select the appropriate resource group and location. For this example, you do not need to store information in Log Analytics.
  2. Once your playbook has been created, click on the Blank Logic App button to create a new logic app that has nothing in it.
  3. In the Logic Apps Designer page, find and select the Azure Sentinel connector...