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

Log Analysis

In Chapter 14, Investigating an Incident, you learned about the investigation process, and some techniques for finding the right information while investigating an issue. However, to investigate a security issue, it is often necessary to review multiple logs from different vendors and different devices. Although each vendor might have some custom fields in the log, the reality is that once you learn how to read logs, it becomes easier to switch vendors and just focus on deltas for that vendor. While there are many tools that will automate log aggregation, such as a SIEM solution, there will be scenarios in which you need to manually analyze a log in order to figure out the root cause.

In this chapter, we are going to cover the following topics:

  • Data correlation
  • Operating system logs
  • Firewall logs
  • Web server logs
  • Amazon Web Services (AWS) logs
  • Azure Activity logs
  • Google Cloud Platform (GCP) logs

Let’s start...