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 security model


Understanding every smartphone's OS security model is a big deal in the forensic context. All vendors and smartphones manufacturers care about securing their user's data, and in most cases, the security model implemented can cause a real headache to every forensic examiner, and Android is no exception. Android, as you know, is an open source OS built on the Linux kernel and provides an environment offering the ability to run multiple applications simultaneously. Each application is digitally signed and isolated in its very own sandbox; each application sandbox defines the application's privileges. Above the kernel, all activities have constrained access to the system.

Android OS implements many security components and has many considerations for its various layers; the following diagram summarizes the Android security architecture on ARM with TrustZone support:

Most recent Android devices provide a secondary environment/OS: the Secure OS is dedicated to run security...