MachOKit - 🔬 A Swift library for parsing mach-o files to obta

项目说明

MachOKit

Library for parsing MachO files to obtain information.

In addition to file reading, parsing of images in memory by _dyld_get_image_header is also supported.

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Features

parse load commands

symbol list

get all cstrings

rebase operations

binding operations

export tries

...

Usage

Load from memory

For reading from memory, use the MachOImage structure.

It can be initialized by using the Mach-O Header pointer obtained by _dyld_get_image_header.

Alternatively, it can be initialized using the name.

Load from file

For reading from file, use the MachOFile structure.

Reading from a file can be as follows.
There is a case of a Fat file and a single MachO file, so a conditional branching process is required.

Main properties and methods

Both MachOImage and MachOFile can use essentially the same properties and methods.
The a methods are defined in the following file as the MachORepresentable protocol.

MachORepresentable

Dyld Cache

Loading of dyld_shared_cache is also supported.

The a methods are defined in the following file as the DyldCacheRepresentable protocol.

DyldCacheRepresentable

#### Dyld Cache (File)

It is also possible to extract machO information contained in dyld_shared_cache.
The machO extracted is of type MachOFile.
As with reading from a single MachO file, analyses are possible.

#### Full Dyld Cache (File)

In addition to DyldCache, FullDyldCache can be used to handle multiple dyld cache files (main cache and subcaches) as a single unified cache.

The FullDyldCache type provides properties like mainCache, subCaches, allCaches, and urls to access each component cache file.

#### Dyld Cache (on memory)

On the Apple platform, the dyld cache is deployed in memory.

It is also possible to extract machO information contained in dyld_shared_cache.
The machO extracted is of type MachOImage.
As with reading from a single MachO image, analyses are possible.

UI-friendly labels

MachOKit keeps description close to C header constants (for example LC_MAIN).
If you need user-facing labels, import MachOKitReadable and use readableDescription.

Example Codes

There are a of uses, but most show a basic example that prints output to the Test directory.

#### Load from memory

The following file contains sample code.
MachOPrintTests

#### Load from file

The following file contains sample code.
MachOFilePrintTests

#### Dyld Cache (file)

The following file contains sample code.
DyldCachePrintTests

#### Dyld Cache (on memory)

The following file contains sample code.
DyldCacheLoadedPrintTests

Related Projects

MachOKitSPM

Pre-built of MachOKit

SwiftHook

⚓️ A Swift Library for hooking swift methods and functions.

FishHook

Re-implementation of facebook/fishhook with Swift using MachOKit

AntiFishHook

A Swift library to deactivate fishhook. (Anti-FishHook)

dyld-shared-cache-extractor

A CLI tool to extract dylib from dyld_shared_cache

inject-o

A CLI tool for injecting dependent dylibs into the Mach-O file.

Runtime Metadata

Utilities for extracting higher-le metadata from Mach-O binaries.

MachOObjCSection

Objective-C metadata parser for classes, methods, protocols, properties, categories, and related runtime structures.

MachOSwiftSection

Swift metadata parser for types, protocols, protocol conformances, and other Swift runtime information.
(De by Mx-Iris.)

Debug Information

swift-dwarf

A Swift library for parsing DWARF debug information.

Other binary type

ELFKit

Elf format

PEKit

PE/COFF format

License

MachOKit is released under the MIT License. See LICENSE

项目信息

开发语言：Swift

Star 数：278

技术要点

该项目属于CTF思路方向的开源资源，代码结构清晰，适合安全研究人员学习参考。项目围绕🔬 A Swift library for parsing mach-o files to obtain various information.展开，提供了可运行的实现，对理解相关安全机制、工具原理与攻防技术具有较高的研究价值。

从技术实现角度看，此类项目的核心在于对底层原理的深入理解与工程化落地。开发者在研究过程中可以结合官方文档与社区讨论，梳理项目的初始化流程、核心模块职责与数据流转，逐步掌握其中的技术细节与设计思路。

使用与学习建议

1. 下载源码压缩包，解压到本地环境。

2. 根据项目类型准备对应的运行环境与依赖。

3. 按照 README 中的步骤完成配置与部署。

4. 在隔离的测试环境中运行验证，避免影响生产系统。

免责声明

本资源来源于开源社区，仅供安全研究、技术学习与合法授权范围内的攻防演练使用，请勿用于任何非法或侵害他人权益的用途。使用本项目产生的一切后果由使用者自行承担。