Book Image

Cybersecurity - Attack and Defense Strategies

By : Yuri Diogenes, Dr. Erdal Ozkaya
Book Image

Cybersecurity - Attack and Defense Strategies

By: Yuri Diogenes, Dr. Erdal Ozkaya

Overview of this book

The book will start talking about the security posture before moving to Red Team tactics, where you will learn the basic syntax for the Windows and Linux tools that are commonly used to perform the necessary operations. You will also gain hands-on experience of using new Red Team techniques with powerful tools such as python and PowerShell, which will enable you to discover vulnerabilities in your system and how to exploit them. Moving on, you will learn how a system is usually compromised by adversaries, and how they hack user's identity, and the various tools used by the Red Team to find vulnerabilities in a system. In the next section, you will learn about the defense strategies followed by the Blue Team to enhance the overall security of a system. You will also learn about an in-depth strategy to ensure that there are security controls in each network layer, and how you can carry out the recovery process of a compromised system. Finally, you will learn how to create a vulnerability management strategy and the different techniques for manual log analysis.
Table of Contents (22 chapters)
Title Page
Packt Upsell
Contributors
Preface
Index

External reconnaissance


In this phase, an attacker is simply looking for a vulnerable target to attack. The motive is to harvest as much information as possible from outside the target's network and systems. This may be information about the target's supply chain, obsolete device disposal, and employee social media activities. This will enable the attacker to decide on the exploitation techniques that are suitable for each vulnerability identified about a particular target. The list of targets might be endless, but attackers have a particular taste for naïve users that hold certain privileges in systems. However, anyone in an organization can be targeted, including suppliers and customers. All that is needed is a weak point for the attackers to get an entrance into an organization's network.

There are two commonly used techniques in this stage-phishing and social engineering.

Phishing is done through emails where attackers send the target some carefully crafted emails to cause them to reveal...