You're reading from Incident Response with Threat Intelligence Practical insights into developing an incident response capability through intelligence-based threat hunting

Product type Paperback

Published in Jun 2022

Publisher Packt

ISBN-13 9781801072953

Length 468 pages

Edition 1st Edition

Languages

C++

Tools

Kali Linux

Concepts

Information Management

Author (1):

Roberto Martinez

View More author details

Table of Contents (20) Chapters

Preface

1. Section 1: The Fundamentals of Incident Response

2. Chapter 1: Threat Landscape and Cybersecurity Incidents FREE CHAPTER

3. Chapter 2: Concepts of Digital Forensics and Incident Response

4. Chapter 3: Basics of the Incident Response and Triage Procedures

5. Chapter 4: Applying First Response Procedures

6. Section 2: Getting to Know the Adversaries

7. Chapter 5: Identifying and Profiling Threat Actors

8. Chapter 6: Understanding the Cyber Kill Chain and the MITRE ATT&CK Framework

9. Chapter 7: Using Cyber Threat Intelligence in Incident Response

10. Section 3: Designing and Implementing Incident Response in Organizations

11. Chapter 8: Building an Incident Response Capability

12. Chapter 9: Creating Incident Response Plans and Playbooks

13. Chapter 10: Implementing an Incident Management System

14. Chapter 11: Integrating SOAR Capabilities into Incident Response

15. Section 4: Improving Threat Detection in Incident Response

16. Chapter 12: Working with Analytics and Detection Engineering in Incident Response

17. Chapter 13: Creating and Deploying Detection Rules

18. Chapter 14:  Hunting and Investigating Security Incidents

19. Other Books You May Enjoy

Investigating the security incident

Now that we have the vector of compromise, we can continue our investigation by looking for evidence about what happened after the initial compromise. Proceed as follows:

Go to the Alerts panel on Security Onion.
On the Options menu, click to open the list and select Acknowledged and Escalated to see an alert regarding the malware, as shown in the following screenshot:

Figure 14.31 – Filtering to show cases created from alerts

To see details about this alert, click on the rule.name column and select Actions then Hunt (remember to filter by date, as you did before).

You will see a list of events associated with this alert again; because we already analyzed traffic related to port 9000 communication, we can now try to investigate traffic related to port 445.