Book Image

Cybersecurity – Attack and Defense Strategies - Second Edition

By : Yuri Diogenes, Dr. Erdal Ozkaya
Book Image

Cybersecurity – Attack and Defense Strategies - Second Edition

By: Yuri Diogenes, Dr. Erdal Ozkaya

Overview of this book

Cybersecurity – Attack and Defense Strategies, Second Edition is a completely revised new edition of the bestselling book, covering the very latest security threats and defense mechanisms including a detailed overview of Cloud Security Posture Management (CSPM) and an assessment of the current threat landscape, with additional focus on new IoT threats and cryptomining. Cybersecurity starts with the basics that organizations need to know to maintain a secure posture against outside threat and design a robust cybersecurity program. It takes you into the mindset of a Threat Actor to help you better understand the motivation and the steps of performing an actual attack – the Cybersecurity kill chain. You will gain hands-on experience in implementing cybersecurity using new techniques in reconnaissance and chasing a user’s identity that will enable you to discover how a system is compromised, and identify and then exploit the vulnerabilities in your own system. This book also focuses on defense strategies to enhance the security of a system. You will also discover in-depth tools, including Azure Sentinel, to ensure there are security controls in each network layer, and how to carry out the recovery process of a compromised system.
Table of Contents (20 chapters)
18
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19
Index

Leveraging threat intelligence to investigate suspicious activity

At this point, there is no longer any doubt that the use of threat intelligence to help your detection system is imperative. Now, how do you take advantage of this information when responding to a security incident? While the Blue Team works primarily on the defense system, they do collaborate with the incident response team by providing the right data that can lead them to find the root cause of the issue. If we use the previous example from Security Center, we could just hand it that search result and it would be good enough. But knowing the system that was compromised is not the only goal of an incident response.

At the end of the investigation, you must answer at least the following questions:

  • Which systems were compromised?
  • Where did the attack start?
  • Which user account was used to start the attack? Did it move laterally?
    • If it did, what systems were involved in this movement?
  • Did it escalate...