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Real Digital Forensics: Computer Security and Incident Response, by Keith J. Jones, Richard Bejtlich, Curtis W. Rose
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This is a book and DVD set providing an interactive experience that helps readers master the tools and techniques of forensic analysis by investigating real cases. Offers practical hands-on approach to solving problems encountered when performing computer-related investigations. It's authors are well known and well respected in the industry, speak widely, and teach forensics classes. The motto of this book and DVD set is learn by doing. Many people understand the basics of computer forensics and incident response, but lack the necessary skills and direct experience to tackle a case on their own. Organized around case studies, this book offers a comprehensive introduction to the methods, techniques, and tools of forensic investigations through direct contact with real cases. All of the material is introduced within the context of a complete forensic investigation, and the book's companion DVD allows readers to immediately test their skills by working with real data.
- Sales Rank: #128204 in Books
- Published on: 2005-10-03
- Original language: English
- Number of items: 1
- Dimensions: 9.20" h x 1.70" w x 7.00" l, 2.44 pounds
- Binding: Paperback
- 688 pages
From the Back Cover
You can't succeed in the field of computer forensics without hands-on practice—and you can't get hands-on practice without real forensic data. The solution: Real Digital Forensics. In this book, a team of world-class computer forensics experts walks you through six detailed, highly realistic investigations and provides a DVD with all the data you need to follow along and practice.
From binary memory dumps to log files, this DVD's intrusion data was generated by attacking live systems using the same tools and methods real-world attackers use. The evidence was then captured and analyzed using the same tools the authors employ in their own investigations. This book relies heavily on open source tools, so you can perform virtually every task without investing in any commercial software.
You'll investigate environments ranging from financial institutions to software companies and crimes ranging from intellectual property theft to SEC violations. As you move step by step through each investigation, you'll discover practical techniques for overcoming the challenges forensics professionals face most often.
Inside, you will find in-depth information on the following areas:
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Responding to live incidents in both Windows and Unix environments
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Determining whether an attack has actually occurred
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Assembling a toolkit you can take to the scene of a computer-related crime
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Analyzing volatile data, nonvolatile data, and files of unknown origin
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Safely performing and documenting forensic duplications
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Collecting and analyzing network-based evidence in Windows and Unix environments
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Reconstructing Web browsing, e-mail activity, and Windows Registry changes
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Tracing domain name ownership and the source of e-mails
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Duplicating and analyzing the contents of PDAs and flash memory devices
The accompanying DVD contains several gigabytes of compressed data generated from actual intrusions. This data mirrors what analysts might find in real investigations and allows the reader to learn about forensic investigations in a realisticsetting.
© Copyright Pearson Education. All rights reserved.
About the Author
Keith J. Jones leads the computer forensics and electronic evidence discovery practices at Red Cliff Consulting. Formerly Foundstone's director of incident response and computer forensics, his book "The Anti-Hacker Tool Kit" (McGraw-Hill Osborne, 2002) is the definitive guide to securing critical applications.
Richard Bejtlich is a former Air Force intelligence officer, and is founder of TaoSecurity, a network security monitoring consultancy. He wrote the "Tao of Network Security Monitoring" (Addison-Wesley, 2005) and "Extrusion Detection" (Addison-Wesley, 2006).
Curtis W. Rose, a former counterintelligence special agent, is an executive vice president at Red Cliff Consulting where he leads research and development efforts and special projects, and where he provides support to criminal investigations and civil litigation. He was a contributing author or technical editor for several security books, including "The Anti-Hacker Tool Kit," "Network Security: The Complete Reference" (McGraw-Hill Osborne, 2002), and "Incident Response: Investigating Computer Crime, Second Edition" (McGraw-Hill Osborne, 2002).
Dan Farmer is author of a variety of security programs and papers. He is currently chief technical officer of Elemental Security, a computer security software company. Together he and Wietse Venema, have written many of the world's leading information security and forensics packages, including the SATAN network security scanner and the Coroner's Toolkit.
Wietse Venema has written some of the world's most widely used software, including TCP Wrapper and the Postfix mail system. He is currently a research staff member at IBM Research. Together, he and Dan Farmer have written manyof the world's leading information security and forensics packages, including the SATAN network security scanner and the Coroner's Toolkit.
Brian Carrier has authored several leading computer forensic tools, including The Sleuth Kit (formerly The @stake Sleuth Kit) and the Autopsy Forensic Browser. He has authored several peer-reviewed conference and journal papers and has created publicly available testing images for forensic tools. Currently pursuing a Ph.D. in computer science and digital forensics at Purdue University, he is also a research assistant at the Center for Education and Research in Information Assurance and Security (CERIAS) there. He formerly served as a research scientist at @stake and as the lead for the @stake Response Team and Digital Forensic Labs. Carrier has taught forensics, incident response, and file systems at SANS, FIRST, the @stake Academy, and SEARCH.
Brian Carrier's Web site, http: //www.digital-evidence.org, contains book updates and up-to-date URLs from the book's references.
Richard Bejtlich is Chief Security Officer at Mandiant and was previously Director of Incident Response for General Electric, where he built and led the 40-member GE Computer Incident Response Team (GE-CIRT). He is a graduate of Harvard University and the United States Air Force Academy. Bejtlich's previous works include The Tao of Network Security Monitoring, Extrusion Detection, and Real Digital Forensics (all from Addison-Wesley). He writes on his blog (taosecurity.blogspot.com) and on Twitter as @taosecurity.
Excerpt. © Reprinted by permission. All rights reserved.
Preface Preface Our Purpose and Approach
Welcome to the book named Real Digital Forensics. When we conceived this book, we wanted to give forensic investigators more than words to learn new skills. Many people express to us in our classes and speaking engagements a simple sentence we have heard hundreds of times: "How do I get into the field of computer forensics?" In our opinion, you cannot learn forensics unless you have hands-on practical experience. This brings up a more important question we usually hear next: "How do I get my hands on data to gain that experience?" This question is much more difficult to answer because the only data most people have to practice with comes from real cases—and we all know that our clients do not want their data disseminated for learning tools! Therefore, it is difficult for most people to find data to practice with in order to sharpen their computer forensic skills. To answer this second question, we decided to publish this book with a DVD containing realistic evidence collected from several fictitious scenarios for the sole purpose of teaching the computer forensic tradecraft.
Most of the scenarios you will find throughout this book are very similar to types of cases that we investigate every day. We used the same tools attackers use when establishing a foothold in your network, the same methods rogue employees make use of to steal your trade secrets, and the same media we typically collect when we created the evidence files found on the DVD. Although we attempted to thoroughly investigate each company name we used for our scenarios, we want to state that none of this data was collected from computers within companies with coincidentally similar names or IP addresses.
The book begins by presenting methodologies used for the collection and analysis of computer forensic data. Then the book presents methods for compiling tool kits you can take with you to the scene of a computer-related crime. The book concludes by providing methodologies for deeper forensic analysis and solutions for when you run into other types of computer media such as USB memory and Palm devices.
Although computer forensic software tends to be commercially dominated, which means you would have to pay a hefty licensing fee just to get your feet wet, we wholeheartedly believe in open source because of the documented methodologies and availability of the source code. Reproducibility and documentation of methodologies is the cornerstone of any forensic science. Therefore, you will find that most techniques we recommend utilize a freely available and publicly documented toolset. This will enable you to examine the evidence found on the DVD without having to purchase additional software. When we do talk about commercial software to help round out your knowledge base, we will point it out in the text so that you are fully aware.
You will find that this book takes a practical, hands-on approach to solving problems that we frequently encounter when performing computer-related investigations. This book will not contain pages and pages about the theory of computer forensics. What it will contain are techniques you can employ immediately to solve your problems when performing an analysis. We hope you enjoy the Real Digital Forensics experience.
The Prerequisites and Target Audiences
Some of the techniques we discuss in this book are considered more advanced than common forensic knowledge. If you are just starting out in the computer forensic field, we suggest a basic understanding of computer forensics to more fully enjoy the content within this book. For an understanding of computer forensics that will help you work through the investigations throughout this book, we recommend you review the following publications:
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The Tao of Network Security Monitoring: Beyond Intrusion Detection by Richard Bejtlich
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Extrusion Detection: Security Monitoring for Internal Intrusions by Richard Bejtlich
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Incident Response: Investigating Computer Crime by Kevin Mandia, Chris Prosise, and Matt Pepe
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File System Forensic Analysis by Brian Carrier
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Computer Forensics by Kruse, Warren and Jay Heiser
About the Art
Due to the complex nature of the data we discuss, some of our screenshots may appear small in this book and may be difficult to read. We have made all the artwork available at http://www.realdigitalforensics.com.
How To Use the DVD
All the evidence collected for each of the scenarios presented throughout the book is loaded on the DVD. If you insert the DVD into a Windows machine, a new drive such as D: or E: will appear. If you insert the DVD into a Unix machine, you will need to mount the file system using the mount command, such as:
?mount /dev/cdrom /mnt/realdigitalforensics
Off of the DVD root directory, you will find another directory named after the scenario. Typically this directory has the same name as the victim company's name. For example, to find the "JBR Bank's Intrusion" scenario, you would navigate to the jbr_bank directory on the DVD. Within the scenario directory, you will find more subdirectories. Each subdirectory contains a particular type of evidence that the investigator collected. If the investigator acquired a forensic duplication, you can find the corresponding data in the forensic_duplication directory. If the responder performed a live response, the live_response directory will contain the relevant data, and so on.
Most of the data on the DVD is stored in native format. The live response data is plain text, memory dumps are binary files, and so on. When you want to examine a forensic duplication, you will notice that the files are compressed. This was done because the duplications can be up to 4 GB in size when they are uncompressed, which would not fit on a single DVD. Therefore, be warned—you may want to have 10 to 20 GB of working room on your hard drive when you analyze this evidence. To analyze a forensic duplication, you must first copy the evidence from the DVD to your local hard drive and uncompress the duplication. The forensic duplications can be uncompressed with Winzip (http://www.winzip.com) in Windows or unzip/gzip in Unix.
The data on the DVD represents our best efforts to mirror the real world scenarios we encounter every day. We were forced, unfortunately, to perform some post processing so that we did not distribute copies of commercial software. Therefore, some system-related files on the victim machines containing the Windows operating system had zeros written over it. The original size of the file and directory structure we kept "as is" to simulate a real machine.
With that in mind, please load up your DVD and follow along with our many examples. We invite you to visit our Web site, http://www.realdigitalforensics.com, for updates to the text, links to forensics tools, and other information to make your incident response and forensics duties more pleasurable.
© Copyright Pearson Education. All rights reserved.
Most helpful customer reviews
35 of 36 people found the following review helpful.
the DVD's data is crucial for you to tackle
By W Boudville
There have been several authoritative books on computer forensics. (Including "Tao of Network Security Monitoring" by Bejtlich.) But this "Real Digital Forensics" book breaks new ground. Not in the theoretical modelling of an attack or countermeasures against it. Instead, there are several indepth case studies, that key off data given in the book's DVD. And the latter is a DVD, not a CD. The authors needed the multigigabyte capacity to store the provided data. Even then, these are compressed. This should give you some feeling of the book's emphasis.
The authors address a serious lack in this field. How does someone [you] gain experience analysing a real attack? Without already being employed at a company experiencing such an event? In response, the authors made several scenarios that, they claim, reflect what actual attackers would likely have done.
This is an experimental book. There is no overarching elegant theory. You are meant to roll up your sleeves and tackle each case. En route, the book shows how, as a defender, you can use several open source packages to dissect the attack, as well as impose countermeasures. Which is another nice feature. Those packages are free. It makes your forensics education very cheap, in terms of explicit capital outlay.
Which is not to say that the book ignores commercial forensic tools. But the authors have a clear preference for open source, with which you might well concur.
18 of 19 people found the following review helpful.
An essential A-Z guide for forensic investigations
By Dx21, LLC
There is a real lack of well written books in this category, and this one stands out because it is comprehensive, yet easy to digest and carefully laid out, including case studies to understand data capture and analysis techniques.
The progression of the chapters mirror an investigative process; there is discussion of how to properly handle digital evidence, how to make a duplicate of the source data, and how to make sense of what you have collected. There are many real-world type case studies in the beginning of the book that could easily read off the front of any newspaper, and the captured evidence is on the included DVD for you to search to find the "smoking gun". Very well done.
The book takes the unusual role of discussing not only the more popular commercial tools like EnCase or Forensic Tool Kit, but also all the open source tools available for free, which is a real plus if you don't have the deep pockets required for the retail products. The book also does an excellent job of explaining the advantages and shortcomings of all the products discussed, something not often seen in technical books. Along with the open source discussion are source web sites for downloading the tools. The accompanying DVD is packed with stuff to get you started. The book is filled with well illustrated screen shots to help you orient yourself when trying the programs yourself.
Be forewarned, this book assumes a pretty reasonable amount of technical knowledge and while it addresses the commercial products available on the Win32 platform, a lot of tools and utilities referenced are written for Linux. While a novice investigator can certainly find value in the book, there is a lot of "meat" that even a seasoned professional will find useful.
This is definitely the best book currently available on data forensic investigations.
18 of 20 people found the following review helpful.
Will educate and wow!
By Dr Anton Chuvakin
Bejtlich, Jones and Rose 'Real Digital Forensics' is as practical as a printed book can be. In a very methodical fashion, the authors cover live response (Unix, Windows), network-based forensics following the NSM model (Unix, Windows), forensics duplication, common forensics analysis techniques (such as file recovery and Internet history review), hostile binary analysis (Unix, Windows), creating a forensics toolkit and PDA, flash and USB drive forensics. Is that it? :-)Well, there is some other fun stuff too. In other words, the book is both comprehensive and in-depth; following the text and trying the investigations using the enclosed DVD definitely presents an effective way to learn forensic techniques. I would recommend the book to all security professionals (even those not directly involved with forensics on a daily basis).
Anton Chuvakin, Ph.D., GCIA, GCIH, GCFA is a Security Strategist with a major security company. He is an author of the book "Security Warrior" and a contributor to "Know Your Enemy II" and the upcoming "Hacker's Challenge III". In his spare time, he maintains his security portal info-secure.org and his blog at O'Reilly. His next book will be about security log analysis.
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