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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

Investigating Email Threats

Email threats are among the most common types of attacks encountered by Security Operations Center (SOC) analysts, and they often occur multiple times during a working shift. Moreover, malicious emails are often the first step in an attacker’s attempt to gain access to a target environment. Given the increase in these types of threats, SOC analysts and cyber investigators must understand attackers’ techniques to initiate attacks via email and how to investigate and respond to email threats.

The objective of this chapter is to learn why attackers prefer phishing emails to gain initial access, the most common email threats, the most common techniques by attackers to evade detection and trick the victim, how to analyze email secure gateway logs, and how to investigate suspicious emails.

In this chapter, we will cover the following main topics:

  • Top infection vectors
  • Why attackers prefer phishing emails to gain initial access
  • Email threat types
  • Attackers’ techniques to evade email security detection
  • Social engineering techniques to trick the victim
  • The anatomy of secure email gateway logs
  • Investigating suspicious emails

Let’s get started!

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