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

Getting acquainted with file carving

Digital Forensic Research Workshop (DFRWS) defined data carving as the process of extracting a collection of data from a larger dataset. Applied to a digital investigation case, file carving is the process of extracting "data" from unallocated filesystem space using the file type inner structure, and not filesystem structure, which means that the extraction process is principally based on file types' headers and trailers.

Basically, all data gathered from a smartphone is always in the form of a file. In the digital world, each file is a block of stored binary digits, and each file type is defined depending on how these digits are stored—the use of extensions in file names is meant to easily and precisely determine the file's generic type. This is not a reliable approach since eyes, and even computers, can be fooled just by renaming the files. This leads us to a more advanced approach based on an analysis of the inner file structure in order to determine...