You're reading from Practical Threat Intelligence and Data-Driven Threat Hunting A hands-on guide to threat hunting with the ATT&CK™ Framework and open source tools

Product type Paperback

Published in Feb 2021

Publisher Packt

ISBN-13 9781838556372

Length 398 pages

Edition 1st Edition

Tools

Elasticsearch

Concepts

Application Security

Author (1):

Valentina Costa-Gazcón

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Table of Contents (21) Chapters

Preface

1. Section 1: Cyber Threat Intelligence

2. Chapter 1: What Is Cyber Threat Intelligence? FREE CHAPTER

3. Chapter 2: What Is Threat Hunting?

4. Chapter 3: Where Does the Data Come From?

5. Section 2: Understanding the Adversary

6. Chapter 4: Mapping the Adversary

7. Chapter 5: Working with Data

8. Chapter 6: Emulating the Adversary

9. Section 3: Working with a Research Environment

10. Chapter 7: Creating a Research Environment

11. Chapter 8: How to Query the Data

12. Chapter 9: Hunting for the Adversary

13. Chapter 10: Importance of Documenting and Automating the Process

14. Section 4: Communicating to Succeed

15. Chapter 11: Assessing Data Quality

16. Chapter 12: Understanding the Output

17. Chapter 13: Defining Good Metrics to Track Success

18. Chapter 14: Engaging the Response Team and Communicating the Result to Executives

19. Other Books You May Enjoy

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Appendix – The State of the Hunt

Using Sigma

To put it simply, Sigma rules are the YARA rules of log files. They were created by Florian Roth (https://github.com/Neo23x0/sigma). Sigma is an open signature format that can be applied to any log file and that can be used to describe and share detections.

Since they were first presented in 2007, Sigma rules have been widely adopted by the cybersecurity community and can be converted into many SIEM formats. If you are not familiar with SIEMs, you are probably not aware that each vendor will use its own proprietary format. Add this to the already mentioned differences between data sources and you'll realize that having a common language for sharing detections is pretty useful and can solve lots of problems.

But how does this work? First, we create the Sigma rule file, which is a generic YAML-based formatted file. Then, once we've filled in all the information for the rule, we convert the file in two different ways: one for the specific formatting needed...