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
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Preparing a Mobile Forensic Workstation
Index

Android physical data acquisition


Acquiring the physical image of any device means extracting an exact bit-by-bit copy of the original device's flash memory. In contrast to logical acquisition, physically acquired images hold unallocated space, files, and the volume stack, in addition to the extraction of data remnants present in the memory.

In the Android context, we need to root the device to obtain a superuser privilege to fully access the ADB shell. A physical acquisition can be performed via a custom bootloader, by changing the custom recovery image or using flashing tools. We even have hardware-based acquisition techniques including JTAG and chip-off. Physically acquiring a device means that you have indirectly acquired everything within the device.

Linux-based operating systems include a built-in command-line tool called dd, used (by definition) to copy from source to destination, block-by-block, regardless of their filesystem type or operating system. This utility is included in Android...