Hopper Disassembler

Hopper Disassembler is a powerful and popular reverse engineering tool used primarily by security researchers, malware analysts, and software developers. It allows users to perform static and dynamic analysis on executable files.

In simple terms, it takes a compiled program (a bunch of machine code) and translates it back into a human-readable form, known as assembly code or pseudo-code.

Key Functions and Features

• Disassembler: The core function is to convert raw binary code into assembly language, showing the actual CPU instructions.

• Decompiler: It goes a step further by attempting to convert the assembly code into higher-level pseudo-code (similar to C or Python), which is much easier for humans to read and understand the program's logic.

• Debugger: It supports dynamic analysis using debuggers like LLDB and GDB, allowing you to run the program step-by-step while analyzing its internal structure in real-time.

• Control Flow Graph (CFG): It visually represents the logic of a procedure (function) as an interactive graph, showing the branches and loops in the code, which is crucial for understanding complex malware or proprietary algorithms.

• Multi-Platform/Architecture Support: It can disassemble binaries built for various operating systems and CPU architectures, including:

  • Processors: Intel (32/64-bit), ARM (ARMv6, ARMv7, ARM64), and PowerPC.

  • File Formats: Mach-O (Mac/iOS), PE (Windows), and ELF (Linux).

• Objective-C & Swift Specialization: It is excellent for analyzing macOS and iOS applications, as it can decode mangled Swift names and extract Objective-C selectors and messages.

• Scriptable: It supports Python scripting, allowing users to automate analysis, create custom workflows, and extend its functionality.