Book Image

Mastering Mobile Forensics

By : Soufiane Tahiri
Book Image

Mastering Mobile Forensics

By: Soufiane Tahiri

Overview of this book

Mobile forensics presents a real challenge to the forensic community due to the fast and unstoppable changes in technology. This book aims to provide the forensic community an in-depth insight into mobile forensic techniques when it comes to deal with recent smartphones operating systems Starting with a brief overview of forensic strategies and investigation procedures, you will understand the concepts of file carving, GPS analysis, and string analyzing. You will also see the difference between encryption, encoding, and hashing methods and get to grips with the fundamentals of reverse code engineering. Next, the book will walk you through the iOS, Android and Windows Phone architectures and filesystem, followed by showing you various forensic approaches and data gathering techniques. You will also explore advanced forensic techniques and find out how to deal with third-applications using case studies. The book will help you master data acquisition on Windows Phone 8. By the end of this book, you will be acquainted with best practices and the different models used in mobile forensics.
Table of Contents (14 chapters)
Mastering Mobile Forensics
About the Author
About the Reviewer
Preparing a Mobile Forensic Workstation

JTAG and chip-off forensic examinations

Joint Test Action Group (JTAG) is an association created by the electronics industry for developing a method of verifying designs and testing printed circuit boards after manufacture. Even if the name is still commonly used, this industry effort has become an Institute of Electrical and Electronics Engineers (IEEE) standard entitled Standard Test Access Port and Boundary-Scan Architecture. Applied in a forensic context, JTAG consists usually of connecting to the standard Test Access Port (TAP) on a device and then instructing the processor to transfer raw data to a connected computer, meaning that JTAG usually requires disassembling the device.

The following are the JTAG TAPs on a disassembled Samsung Galaxy S4 (source

Figure 2

Once the JTAG TAPs are identified, the examiner solders the JTAG connectors to them as shown (source: