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Digital Forensics and Incident Response - Second Edition

You're reading from  Digital Forensics and Incident Response - Second Edition

Product type Book
Published in Jan 2020
Publisher
ISBN-13 9781838649005
Pages 448 pages
Edition 2nd Edition
Languages
Concepts
Author (1):
Gerard Johansen Gerard Johansen
Profile icon Gerard Johansen
LinkedIn
Gerard Johansen is an information security professional with over a decade of experience in penetration testing, vulnerability management, threat assessment modeling, and incident response. Beginning his career as a cyber crime investigator, he has also worked as a consultant and security analyst for clients and organizations ranging from healthcare to finance. He is a graduate from Norwich University, gaining an MSc in Information Assurance and also a CISSP, and is currently employed with an international information technology services firm that specializes in incident response and threat intelligence.
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Table of Contents (22) Chapters

Preface 1. Section 1: Foundations of Incident Response and Digital Forensics
2. Understanding Incident Response 3. Managing Cyber Incidents 4. Fundamentals of Digital Forensics 5. Section 2: Evidence Acquisition
6. Collecting Network Evidence 7. Acquiring Host-Based Evidence 8. Forensic Imaging 9. Section 3: Analyzing Evidence
10. Analyzing Network Evidence 11. Analyzing System Memory 12. Analyzing System Storage 13. Analyzing Log Files 14. Writing the Incident Report 15. Section 4: Specialist Topics
16. Malware Analysis for Incident Response 17. Leveraging Threat Intelligence 18. Hunting for Threats 19. Assessment 20. Other Books You May Enjoy Appendix

Analyzing NetFlow

NetFlow is a feature that was first introduced by Cisco Systems in the 1990s. NetFlow collects specific data about packets as they enter or exit an interface of a router or switch. This data is then sent to a NetFlow Collector via a NetFlow Exporter, which is often made part of switches or routers. The NetFlow Collector then aggregates and stores the flow data for analysis. This data is often leveraged by network and systems administrators to troubleshoot bandwidth issues, identify network congestion, and to observe the flow of data.

A sample NetFlow output is included next. What is included with flow data can vary from network device manufacturers as there are several versions in the commercial market. The following screenshot shows some of the basic information that is captured as part of a NetFlow dataset:

The following components of a NetFlow record are...

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Authors (1)

Profile icon Gerard Johansen
LinkedIn
Gerard Johansen is an information security professional with over a decade of experience in penetration testing, vulnerability management, threat assessment modeling, and incident response. Beginning his career as a cyber crime investigator, he has also worked as a consultant and security analyst for clients and organizations ranging from healthcare to finance. He is a graduate from Norwich University, gaining an MSc in Information Assurance and also a CISSP, and is currently employed with an international information technology services firm that specializes in incident response and threat intelligence.
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See other products by Gerard Johansen

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