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)
1
Section 1: Cyber Threat Intelligence
5
Section 2: Understanding the Adversary
9
Section 3: Working with a Research Environment
14
Section 4: Communicating to Succeed
Appendix – The State of the Hunt

Using MITRE CAR

The data model that's implemented by MITRE Cyber Analytics Repository (MITRE CAR) (https://car.mitre.org/) was inspired by STIX's Cyber Observable eXpression (CybOX ™), and is an "organization of objects that may be monitored from a host-based or network-based perspective." Each of the objects is defined by the actions that can happen to it and the observable properties, called fields, that can be captured by a sensor.

So, for example, the CAR data model for a file looks as follows:

Figure 5.4 – MITRE CAR file data model example

To put it mildly, CAR's intent is to record detections based on the ATT&CK Framework. So, every analytic provided by CAR (https://car.mitre.org/analytics/) references the ATT&CK tactics and techniques detected, accompanied by the hypothesis behind the analytic.

Perhaps the most interesting thing about MITRE CAR is that it provides a list of possible detection implementations...