You're reading from Incident Response Techniques for Ransomware Attacks Understand modern ransomware attacks and build an incident response strategy to work through them

Product type Paperback

Published in Apr 2022

Publisher Packt

ISBN-13 9781803240442

Length 228 pages

Edition 1st Edition

Concepts

Cybersecurity

Author (1):

Oleg Skulkin

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Table of Contents (17) Chapters

Preface

1. Section 1: Getting Started with a Modern Ransomware Attack

2. Chapter 1: The History of Human-Operated Ransomware Attacks FREE CHAPTER

3. Chapter 2: The Life Cycle of a Human-Operated Ransomware Attack

4. Chapter 3: The Incident Response Process

5. Section 2: Know Your Adversary: How Ransomware Gangs Operate

6. Chapter 4: Cyber Threat Intelligence and Ransomware

7. Chapter 5: Understanding Ransomware Affiliates' Tactics, Techniques, and Procedures

8. Chapter 6: Collecting Ransomware-Related Cyber Threat Intelligence

9. Section 3: Practical Incident Response

10. Chapter 7: Digital Forensic Artifacts and Their Main Sources

11. Chapter 8: Investigating Initial Access Techniques

12. Chapter 9: Investigating Post-Exploitation Techniques

13. Chapter 10: Investigating Data Exfiltration Techniques

14. Chapter 11: Investigating Ransomware Deployment Techniques

15. Chapter 12: The Unified Ransomware Kill Chain

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Bypassing defenses

In most cases, ransomware affiliates must use various techniques to avoid detection throughout the attack life cycle. They may disable/uninstall security software, obfuscate or encrypt data, or, for example, remove indicators from compromised hosts.

Exploiting for defense evasion (T1211)

The threat actors may exploit various vulnerabilities to bypass security products and features. And, of course, I have an example from the real world. Robinhood ransomware affiliates exploited a vulnerability in the Gigabyte driver (CVE-2018-19320). This allowed the threat actors to load another unsigned driver, which was used to kill processes and services related to security products and enable successful ransomware deployment.

Deobfuscating/decoding files or information (T1140)

It's quite common for both malware and ransomware to use various obfuscation techniques, such as encryption and encoding, to bypass detection mechanisms. A very common obfuscation technique...