This book addresses topics in the area of forensic analysis of systems running on variants of the UNIX operating system, which is the choice of hackers for their attack platforms. According to a 2007 IDC report, UNIX servers account for the second-largest segment of spending (behind Windows) in the worldwide server market with $4.2 billion in 2Q07, representing 31.7% of corporate server spending. UNIX systems have not been analyzed to any significant depth largely due to a lack of understanding on the part of the investigator, an understanding and knowledge base that has been achieved by the attacker.
The book begins with a chapter to describe why and how the book was written, and for whom, and then immediately begins addressing the issues of live response (volatile) data collection and analysis. The book continues by addressing issues of collecting and analyzing the contents of physical memory (i.e., RAM). The following chapters address /proc analysis, revealing the wealth of significant evidence, and analysis of files created by or on UNIX systems. Then the book addresses the underground world of UNIX hacking and reveals methods and techniques used by hackers, malware coders, and anti-forensic developers. The book then illustrates to the investigator how to analyze these files and extract the information they need to perform a comprehensive forensic analysis. The final chapter includes a detailed discussion of loadable kernel Modules and malware.
Throughout the book the author provides a wealth of unique information, providing tools, techniques and information that won't be found anywhere else.
- This book contains information about UNIX forensic analysis that is not available anywhere else. Much of the information is a result of the author's own unique research and work.
- The authors have the combined experience of law enforcement, military, and corporate forensics. This unique perspective makes this book attractive to all forensic investigators.
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About the Author
Cory Altheide is a Security Engineer at Google, focused on forensics and incident response. Prior to returning to Google, Cory was a principal consultant with MANDIANT, an information security consulting firm that works with the Fortune 500, the defense industrial base and the banks of the world to secure their networks and combat cyber-crime. In this role he responded to numerous incidents for a variety of clients. Cory has authored several papers for the computer forensics journal Digital Investigation and was a contributing author for UNIX and Linux Forensic Analysis (2008)&The Handbook Of Digital Forensics and Investigation (2010). Additionally, Cory is a recurring member of the program committee of the Digital Forensics Research Workshop (DFRWS).
Table of ContentsChapter 1: Introduction
Chapter 2: Understanding Unix
Chapter 3: Live Response: Data Collection
Chapter 4: Initial Triage and Live Response: Data Analysis
Chapter 5: The Hacking Top 10
Chapter 6: The /Proc File System
Chapter 7: File Analysis
Chapter 8: Malware
Appendix: Implementing Cybercrime Detection Techniques on Windows and *nix