Book Image

Practical Threat Intelligence and Data-Driven Threat Hunting

By : Valentina Costa-Gazcón
Book Image

Practical Threat Intelligence and Data-Driven Threat Hunting

By: Valentina Costa-Gazcón

Overview of this book

Threat hunting (TH) provides cybersecurity analysts and enterprises with the opportunity to proactively defend themselves by getting ahead of threats before they can cause major damage to their business. This book is not only an introduction for those who don’t know much about the cyber threat intelligence (CTI) and TH world, but also a guide for those with more advanced knowledge of other cybersecurity fields who are looking to implement a TH program from scratch. You will start by exploring what threat intelligence is and how it can be used to detect and prevent cyber threats. As you progress, you’ll learn how to collect data, along with understanding it by developing data models. The book will also show you how to set up an environment for TH using open source tools. Later, you will focus on how to plan a hunt with practical examples, before going on to explore the MITRE ATT&CK framework. By the end of this book, you’ll have the skills you need to be able to carry out effective hunts in your own environment.
Table of Contents (21 chapters)
Section 1: Cyber Threat Intelligence
Section 2: Understanding the Adversary
Section 3: Working with a Research Environment
Section 4: Communicating to Succeed
Appendix – The State of the Hunt

Quasar RAT

Quasar RAT is an open source RAT for Windows developed using C# and freely available on GitHub. Quasar RAT provides an easy-to-use user interface and high stability, which makes it an attractive tool for a variety of threat actors. It is a common practice among adversaries to make use of publicly available tools in their attacks in order to make difficult the attribution efforts. According to the mapping provided by the ATT&CK team (, Quasar RAT is capable of the following techniques and sub-techniques :

Figure 8.32 – Quasar RAT capabilities according to MITRE ATT&CK

Before moving into executing and hunting Quasar RAT, let's learn a bit about some of the real-world cases and threat actors that have leveraged Quasar RAT for malicious purposes.

Quasar RAT real-world use cases

One of the most common problems when studying the advanced persistent threats activity is in the different...