Book Image

Practical Mobile Forensics - Third Edition

By : Rohit Tamma, Oleg Skulkin, Heather Mahalik, Satish Bommisetty
Book Image

Practical Mobile Forensics - Third Edition

By: Rohit Tamma, Oleg Skulkin, Heather Mahalik, Satish Bommisetty

Overview of this book

Covering up-to-date mobile platforms, this book will focuses on teaching you the most recent techniques for investigating mobile devices. We delve mobile forensics techniques in iOS 9-11, Android 7-8 devices, and Windows 10. We will demonstrate the latest open source and commercial mobile forensics tools, enabling you to analyze and retrieve data effectively. You will learn how to introspect and retrieve data from the cloud, and document and prepare reports of your investigations. By the end of this book, you will have mastered the current operating systems and the relevant techniques to recover data from mobile devices by leveraging open source solutions.
Table of Contents (19 chapters)
Title Page
Copyright and Credits
Packt Upsell
Contributors
Preface
5
iOS Data Analysis and Recovery

The APFS filesystem


APFS is a new filesystem for iOS, macOS, tvOS, and watchOS. It is a 64-bit filesystem and supports over 9 quintillion files on a single volume. Here is the list of its main features:

  • Clones: Instantaneous copies of files or directories. Modifications are written elsewhere and continue to share the unmodified blocks; changes are saved as deltas of the cloned file.
  • Snapshots: Points-in-time, read-only instances of the filesystem.
  • Space sharing: Allows multiple filesystems to share the same underlying free space on a physical volume.
  • Encryption: There are three modes:
    • No encryption
    • Single-key encryption
    • Multi-key encryption with per-file keys for file data and a separate key for sensitive metadata

Depending on the hardware, AES-XTS or AES-CBC encryption mode is used.

  • Crash protection: A novel copy-on-write metadata scheme, it's used to ensure that  filesystem updates are crash-protected.
  • Sparse files: Allow the logical size of files to be greater than the physical space they occupy...