Hacking Exposed VoIP: Voice Over IP Security Secrets & Solutions Review

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Hacking Exposed VoIP: Voice Over IP Security Secrets & Solutions ReviewHacking Exposed: VoIP (HE:V) is the sort of HE book I like. It's fashionable to think HE books are only suitable for script kiddies who run tools they don't understand against vulnerable services they don't recognize. I like HE books because the good ones explain a technology from a security standpoint, how to exploit it, and how to defend it. I thought HE:V did well in all three areas, even featuring original research and experiments to document and validate the authors' claims.
HE:V is a real eye-opener for those of us who don't perform VoIP pen testing or assessments. It's important to remember that the original HE books were written by Foundstone consultants who put their work experience in book form. HE books that continue this tradition tend to be successful, and HE:V is no exception. Good HE books also introduce a wide variety of tools and techniques to exploit weaknesses in targets, and HE:V also delivers in this respect. HE:V also extends attacks beyond what most people recognize. For example, everyone probably knows about low-level exploitation of VoIP traffic for call interception and manipulation. However, chapter 6 discusses application-level interception.
HE:V goes the extra mile by introducing tools written by the authors specifically to implement attacks. In at least one case the authors also provide a packet capture (for the Skinny protocol) which I particularly appreciate. HE:V also looks ahead to attacks that are appearing but not yet prevalent, like telephony spam and voice phishing. Taken together, all of these features result in a great book. You should already be familiar with the common enumeration and exploitation methods found in HE 5th Ed, because the HE:V authors wisely avoid repeating material in other books (thank you).
If you want to understand VoIP, how to attack it, and how to defend it, I highly recommend reading HE:V. The book is clear, thorough, and written by experts.Hacking Exposed VoIP: Voice Over IP Security Secrets & Solutions Overview

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Windows Forensic Analysis DVD Toolkit, Second Edition Review

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Windows Forensic Analysis DVD Toolkit, Second Edition ReviewThe second edition of Harlan's book nicely complements the first and is essential reading for practitioners at all levels. For those of us who primarily engage in exams of acquired images, the chapters on Registry Analysis, File Analysis, Executable Analysis, and Rootkit Detection provide and build upon basic concepts that go beyond what is taught in beginning and intermediate computer forensics courses.
The registry analysis chapter is particularly valuable and one that I draw on repeatedly. The accompanying DVD, with its scripts, not only provides tools to gather the data that Harlan describes, but provides a means to learn while you read by taking a hands on approach to registry analysis.
The chapter on file analysis teaches fundamentals of system files and logs that can provide key evidence in an exam. It explains not only what may be found, but how to get it and why it got there. These are the types of issues that can aid immeasurably when it comes to report writing and courtroom testimony. Similarly, the discussions on malware, rootkits, and executables provide guidance and solutions to considerations of whether an uninvited influence played a role in data arriving on, or departing from, a system.
For those who don't engage in incident or live response at the moment, the time is fast approaching when that aspect forensics is going to be vital to us all. Harlan explains what information is available, and he describes the methods and tools with which we can acquire volatile data and access information that's gone once the plug is pulled. Harlan brings together this area of his book with a discussion of analyzing the data.
In sum, this is a great work that is suited to those who have had basic computer forensics training as well as examiners who have been practicing for a long time. Things change every day, and WFA II provides a means to keep pace.
Windows Forensic Analysis DVD Toolkit, Second Edition Overview

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