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

Exfiltration


This is the phase where the main attack starts. Once an attack has reached this phase, it is considered successful. The attacker normally has unobstructed freedom to move around a victim's network and access all its systems and sensitive data. The attacker will start extracting sensitive data from an organization. This could include trade secrets, usernames, passwords, personally identifiable data, top-secret documents, and other types of data. Attackers normally steal huge chunks of data in this stage. This data can either be sold off to willing buyers or leaked to the public. There have been some ugly incidents facing big companies whose data has been stolen.

In 2015, a hacker group breached and stole 9.7 GB of data from a site called Ashley Madison, which offered spouse-cheating services. The hackers told Avid Life Media, the company that owned the website, to take it down or they would release some user data. The mother company rubbished the claims, but the hackers soon dumped...