You're reading from Effective Threat Investigation for SOC Analysts The ultimate guide to examining various threats and attacker techniques using security logs

Product type Paperback

Published in Aug 2023

Publisher Packt

ISBN-13 9781837634781

Length 314 pages

Edition 1st Edition

Concepts

Cybersecurity

Author (1):

Mostafa Yahia

View More author details

Table of Contents (22) Chapters

Preface

1. Part 1: Email Investigation Techniques

2. Chapter 1: Investigating Email Threats FREE CHAPTER

3. Chapter 2: Email Flow and Header Analysis

4. Part 2: Investigating Windows Threats by Using Event Logs

5. Chapter 3: Introduction to Windows Event Logs

6. Chapter 4: Tracking Accounts Login and Management

7. Chapter 5: Investigating Suspicious Process Execution Using Windows Event Logs

8. Chapter 6: Investigating PowerShell Event Logs

9. Chapter 7: Investigating Persistence and Lateral Movement Using Windows Event Logs

10. Part 3: Investigating Network Threats by Using Firewall and Proxy Logs

11. Chapter 8: Network Firewall Logs Analysis

12. Chapter 9: Investigating Cyber Threats by Using the Firewall Logs

13. Chapter 10: Web Proxy Logs Analysis

14. Chapter 11: Investigating Suspicious Outbound Communications (C&C Communications) by Using Proxy Logs

15. Part 4: Investigating Other Threats and Leveraging External Sources to Investigate Cyber Threats

16. Chapter 12: Investigating External Threats

17. Chapter 13: Investigating Network Flows and Security Solutions Alerts

18. Chapter 14: Threat Intelligence in a SOC Analyst’s Day

19. Chapter 15: Malware Sandboxing – Building a Malware Sandbox

20. Index

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Understanding the value of proxy logs

A web proxy is a device that talks to external websites and domains on behalf of the clients. It is just like when you request your mother to ask your father for money on your behalf. In this case, your mother acts as a proxy between you and your father, allowing her to know crucial information such as the requested amount, the purpose behind the request, the timing of the request, and your father’s response. Similarly, within a digital network, when dealing with malicious activities and command-and-control communications, imagine the valuable information that the proxy has and how we can use it for detection, hunting, and investigation. See Figure 10.1:

Figure 10.1 – Proxy definition diagram

From a technical standpoint, when your clients access the web via a web proxy, the process should be as follows: when a client initiates a web request to access the Domain.org web server, instead of directly sending...