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Finding and mitigating security vulnerabilities in Arm devices is the next critical internet security frontier—Arm processors are already in use by more than 90% of all mobile devices, billions of Internet of Things (IoT) devices, and a growing number of current laptops from companies including Microsoft, Lenovo, and Apple. Written by a leading expert on Arm security, Blue Fox: Arm Assembly Internals and Reverse Engineering introduces readers to modern Armv8-A instruction sets and the process of reverse-engineering Arm binaries for security research and defensive purposes.
Divided into two sections, the book first provides an overview of the ELF file format and OS internals, followed by Arm architecture fundamentals, and a deep-dive into the A32 and A64 instruction sets. Section Two delves into the process of reverse-engineering itself: setting up an Arm environment, an introduction to static and dynamic analysis tools, and the process of extracting and emulating firmware for analysis. The last chapter provides the reader a glimpse into macOS malware analysis of binaries compiled for the Arm-based M1 SoC. Throughout the book, the reader is given an extensive understanding of Arm instructions and control-flow patterns essential for reverse engineering software compiled for the Arm architecture. Providing an in-depth introduction into reverse-engineering for engineers and security researchers alike, this book:
Offers an introduction to the Arm architecture, covering both AArch32 and AArch64 instruction set states, as well as ELF file format internals
Presents in-depth information on Arm assembly internals for reverse engineers analyzing malware and auditing software for security vulnerabilities, as well as for developers seeking detailed knowledge of the Arm assembly language
Covers the A32/T32 and A64 instruction sets supported by the Armv8-A architecture with a detailed overview of the most common instructions and control flow patterns
Introduces known reverse engineering tools used for static and dynamic binary analysis
Describes the process of disassembling and debugging Arm binaries on Linux, and using common disassembly and debugging tools
Blue Fox: Arm Assembly Internals and Reverse Engineering is a vital resource for security researchers and reverse engineers who analyze software applications for Arm-based devices at the assembly level.
