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Effective Threat Investigation for SOC Analysts

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

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Product type Paperback
Published in Aug 2023
Publisher Packt
ISBN-13 9781837634781
Length 314 pages
Edition 1st Edition
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Author (1):
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Mostafa Yahia Mostafa Yahia
Author Profile Icon Mostafa Yahia
Mostafa Yahia
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Toc

Table of Contents (22) Chapters Close

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 21. Other Books You May Enjoy

Email flow

An email flow is the flow path that an email follows and the hops that the email passes when sent from the sender until it's delivered to the recipient. The email crosses multiple hops between the sender and the recipient before it is delivered. Most of them use SMTP. Let’s take a look at these hops in detail:

  • Mail User Agent (MUA): This refers to the agent is used by the client to send the email. Examples include Outlook and browsers such as Google Chrome, Mozilla Firefox, and others.
  • Mail Submission Agent (MSA): The server that receives the email after the client has submitted it from its MUA.
  • Mail Transfer Agent (MTA): Also known as the SMTP relay server, this is the email server that receives the message from the MSA and passes it to several MTA servers until it’s delivered to the recipient’s mail exchange server.
  • Mail Exchange (MX): The email server that is responsible for receiving messages intended for a particular domain...
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