Book Image

Incident Response with Threat Intelligence

By : Roberto Martinez
Book Image

Incident Response with Threat Intelligence

By: Roberto Martinez

Overview of this book

With constantly evolving cyber threats, developing a cybersecurity incident response capability to identify and contain threats is indispensable for any organization regardless of its size. This book covers theoretical concepts and a variety of real-life scenarios that will help you to apply these concepts within your organization. Starting with the basics of incident response, the book introduces you to professional practices and advanced concepts for integrating threat hunting and threat intelligence procedures in the identification, contention, and eradication stages of the incident response cycle. As you progress through the chapters, you'll cover the different aspects of developing an incident response program. You'll learn the implementation and use of platforms such as TheHive and ELK and tools for evidence collection such as Velociraptor and KAPE before getting to grips with the integration of frameworks such as Cyber Kill Chain and MITRE ATT&CK for analysis and investigation. You'll also explore methodologies and tools for cyber threat hunting with Sigma and YARA rules. By the end of this book, you'll have learned everything you need to respond to cybersecurity incidents using threat intelligence.
Table of Contents (20 chapters)
1
Section 1: The Fundamentals of Incident Response
6
Section 2: Getting to Know the Adversaries
10
Section 3: Designing and Implementing Incident Response in Organizations
15
Section 4: Improving Threat Detection in Incident Response

Detecting malicious files using YARA rules

YARA is a powerful tool developed by Victor Manuel Alvarez (Twitter handle @plusvic) from VirusTotal. With YARA, you can search files with specific content, and this is used by security professionals and malware researchers to identify and classify malicious files, but you can also use it to find any kind of content on a disk.

This tool is particularly helpful in incident response; for example, when you are in the triage process and you identify a file as potentially malicious, it will probably help you find that file on other devices across the network to size the compromise.

The creation of YARA rules is based on the identification of specific patterns of file contents, so you need to first get the suspicious file to analyze it and identify unique patterns that you could use to create the rule.

In the next subsection, you will learn the principal parts of the structure of a YARA rule.

Structure of a YARA rule

The structure...