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Incident Response Techniques for Ransomware Attacks

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

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Product type Paperback
Published in Apr 2022
Publisher Packt
ISBN-13 9781803240442
Length 228 pages
Edition 1st Edition
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Author (1):
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Oleg Skulkin Oleg Skulkin
Author Profile Icon Oleg Skulkin
Oleg Skulkin
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Table of Contents (17) Chapters Close

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 16. Other Books You May Enjoy

Initial attack vectors

Any attack starts from an initial access. It can be an access to the internal network via a VPN, a trojan delivered via spear phishing, a web shell deployed via exploitation of public-facing application, or even a supply-chain attack.

At the same time, the three most common initial attack vectors are RDP compromise, spear phishing, and exploitation of software vulnerabilities.

For example, here are some statistics on the most common ransomware attack vectors in Q2 2021 collected by Coveware (source: https://www.coveware.com/blog/2021/7/23/q2-ransom-payment-amounts-decline-as-ransomware-becomes-a-national-security-priority):

Figure 2.1 – The most common ransomware attack vectors according to Coveware

Let's look at each of them in greater detail, with examples, of course.

RDP compromise

For many years, RDP has remained the most common way for threat actors to access the target network. From Chapter 1, The History...

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