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Cybersecurity – Attack and Defense Strategies, 3rd edition

Cybersecurity – Attack and Defense Strategies, 3rd edition

By : Yuri Diogenes, Dr. Erdal Ozkaya
4.9 (42)
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Cybersecurity – Attack and Defense Strategies, 3rd edition

Cybersecurity – Attack and Defense Strategies, 3rd edition

4.9 (42)
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)
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18
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19
Index

Investigating a compromised system on-premises

For the first scenario, we will use a machine that got compromised after the end user opened a phishing email that looks like the following:

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Figure 14.6: Real example of a phishing email that was able to compromise a system

This end user was located in the Brazilian branch office; hence the email is in Portuguese. The content of this email is a bit concerning since it talks about an ongoing legal process, and the user was curious to see if he really had anything to do with it. After poking around within the email, he noticed that nothing was happening when he tried to download the email’s attachment. He decided to ignore it and continued working. A couple of days later, he received an automated report from IT saying that he accessed a suspicious site and that he should call support to follow up on this ticket.

He called support and explained that the only suspicious activity that he remembers was opening an odd...

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