Book Image

Cybersecurity – Attack and Defense Strategies - Third Edition

By : Yuri Diogenes, Dr. Erdal Ozkaya
5 (2)
Book Image

Cybersecurity – Attack and Defense Strategies - Third Edition

5 (2)
By: Yuri Diogenes, Dr. Erdal Ozkaya

Overview of this book

Cybersecurity – Attack and Defense Strategies, Third Edition will bring you up to speed with the key aspects of threat assessment and security hygiene, the current threat landscape and its challenges, and how to maintain a strong security posture. In this carefully revised new edition, you will learn about the Zero Trust approach and the initial Incident Response process. You will gradually become familiar with Red Team tactics, where you will learn basic syntax for commonly used tools to perform the necessary operations. You will also learn how to apply newer Red Team techniques with powerful tools. Simultaneously, Blue Team tactics are introduced to help you defend your system from complex cyber-attacks. This book provides a clear, in-depth understanding of attack/defense methods as well as patterns to recognize irregular behavior within your organization. Finally, you will learn how to analyze your network and address malware, while becoming familiar with mitigation and threat detection techniques. By the end of this cybersecurity book, you will have discovered the latest tools to enhance the security of your system, learned about the security controls you need, and understood how to carry out each step of the incident response process.
Table of Contents (20 chapters)
18
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19
Index

Investigating an Incident

In the previous chapter, you learned about the importance of using threat intelligence to help the Blue Team enhance the organization’s defense and also to know their adversaries better. In this chapter, you will learn how to put all these tools together to perform an investigation. Beyond the tools, you will also learn how to approach an incident, ask the right questions, and narrow down the scope. To illustrate that, there will be two scenarios, where one is in an on-premises organization and the other one is in a hybrid environment. Each scenario will have its unique characteristics and challenges.

In this chapter, we are going over the following topics:

  • Scoping the issue
  • On-premises compromised system
  • Cloud-based compromised system
  • Proactive investigation
  • Conclusion and lessons learned

Let’s start by examining how to determine if an issue has occurred, and what artifacts can provide more information...