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

Configuring Log Analytics storage options

Once you have completed the configuration of a few data connectors, you will begin to see how much data you will ingest and store in Log Analytics on a daily basis. The amount of data you store and retain directly impacts the costs—see Chapter 1, Getting Started with Azure Sentinel, for further details. You can view the current usage and costs by navigating to the Log Analytics workspace, then selecting Usage and estimated costs from the General menu, as shown in the following screenshot:

Figure 3.11 – Log Analytics navigation menu

Once it's selected, you are then presented with a dashboard of information that will show the pricing tier and current costs on the left-hand side and graphs on the right-hand side, to show the variation in consumption on a daily basis for the last 31 days. A second graph shows the total size of retained data, per solution. An example of the dashboard is shown in the following...