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Effective Threat Investigation for SOC Analysts

Effective Threat Investigation for SOC Analysts

By : Mostafa Yahia
4.8 (21)
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Effective Threat Investigation for SOC Analysts

Effective Threat Investigation for SOC Analysts

4.8 (21)
By: Mostafa Yahia

Overview of this book

Effective threat investigation requires strong technical expertise, analytical skills, and a deep understanding of cyber threats and attacker techniques. It's a crucial skill for SOC analysts, enabling them to analyze different threats and identify security incident origins. This book provides insights into the most common cyber threats and various attacker techniques to help you hone your incident investigation skills. The book begins by explaining phishing and email attack types and how to detect and investigate them, along with Microsoft log types such as Security, System, PowerShell, and their events. Next, you’ll learn how to detect and investigate attackers' techniques and malicious activities within Windows environments. As you make progress, you’ll find out how to analyze the firewalls, flows, and proxy logs, as well as detect and investigate cyber threats using various security solution alerts, including EDR, IPS, and IDS. You’ll also explore popular threat intelligence platforms such as VirusTotal, AbuseIPDB, and X-Force for investigating cyber threats and successfully build your own sandbox environment for effective malware analysis. By the end of this book, you’ll have learned how to analyze popular systems and security appliance logs that exist in any environment and explore various attackers' techniques to detect and investigate them with ease.
Table of Contents (22 chapters)
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1
Part 1: Email Investigation Techniques
4
Part 2: Investigating Windows Threats by Using Event Logs
10
Part 3: Investigating Network Threats by Using Firewall and Proxy Logs
15
Part 4: Investigating Other Threats and Leveraging External Sources to Investigate Cyber Threats

Email Flow and Header Analysis

Due to the increase in email threats and the use of spoofing techniques to impersonate known legitimate domains, it has become crucial for SOC analysts to understand the email message flow and email authentication process, as well as analyze email headers to collect additional artifacts and investigate and observe potential spoofing attempts.

The objective of this chapter is to learn about the email message flow and understand email authentication protocols such as Sender Policy Framework (SPF), DomainKeys Identified Mail (DKIM), and Domain-Based Message Authentication, Reporting, and Conformance (DMARC) and how they work. You will also learn how to analyze an email’s message header and observe any spoofing attempts by analyzing it.

In this chapter, we’re going to cover the following main topics:

  • Email flow
  • Email header analysis
  • Email authentication
  • Investigating the email header of a spoofed message

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