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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

Hands-on demo lab

In this section, we will conduct a hands-on demo lab to provide a better understanding of how to analyze real malware by using the previously mentioned tools that exist in our in-house sandbox. The malicious file analyzed in this section is named Kenora.exe. To investigate that suspicious file, we will do the following:

  1. Scan the file using YARA.
  2. Conduct static analysis.
  3. Conduct dynamic analysis.

Scanning the file using YARA

The first step we will take to investigate the suspicious file is to use the YARA tool to run the YARA rules on the file. To do this, we will use the command prompt (CMD) to execute the YARA rule, which is located at D:\YARA\yara64.exe. Also, we will use the downloaded YARA rules repository, located at D:\YARA\rules-YARA, to run against the suspected file, Kenora.exe, which is located at D:\Malware\Kenora.exe. The final command is as follows:

d:\YARA\yara64.exe -w d:\YARA\rules-YARA\index.yar  d:\Malware\Kenora...

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