Skip to content

README.md

Latest commit

 

History

History
63 lines (44 loc) · 2.15 KB

README.md

File metadata and controls

63 lines (44 loc) · 2.15 KB

Code Virtualizer Method Swizzling Demo

This project demonstrates Oreans Code Virtualizer protection applied to Objective-C method swizzling on macOS (arm64).

Project Files

Source Files

  • swizzle.m - Dynamic library that performs Objective-C method swizzling

    • Protected with Code Virtualizer macros (VIRTUALIZER_START, VIRTUALIZER_END, VIRTUALIZER_STR_ENCRYPT_START, etc.)
    • Includes Stealth Code Area for additional anti-debugging protection

  • test_swizzle.m - Test program to verify the swizzling functionality

    • Logs the output to demonstrate the effect of the swizzling

Built Artifacts

  • libswizzle_arm64.dylib - Unprotected version of the swizzling library
  • libswizzle_arm64_protected.dylib - Protected version (virtualized with Code Virtualizer in Demo mode)
  • test_swizzle_arm64 - Compiled test executable

Building

make all
  • libswizzle_arm64.dylib : The swizzling dynamic library
  • test_swizzle_arm64 : The test executable

Running the Demo

Note: SIP must be disabled to run the demo due to the use of DYLD_INSERT_LIBRARIES for method swizzling.

./scripts/demo_swizzle.sh

Code Virtualizer Protection

The swizzle.m file demonstrates several Code Virtualizer features:

Virtualization Macros

  • VIRTUALIZER_START / VIRTUALIZER_END - Marks code sections to be virtualized
  • VIRTUALIZER_STR_ENCRYPT_START / VIRTUALIZER_STR_ENCRYPT_END - Encrypts string literals

Note: VIRTUALIZER_STR_ENCRYPT_START is not available in the demo version. demo_restrictions.png

Stealth Code Area

The code includes a stealth area that:

  • Provides additional anti-debugging protection
  • Makes analysis more difficult
  • Uses STEALTH_AREA_START, STEALTH_AREA_CHUNK, STEALTH_AREA_END macros

docs/options_VM.png docs/p.png docs/ran.png See docs/logs.logs for available features applied to the demo.

License

(c) 2024 Oreans Technologies
All rights are reserved by Oreans.com

See LICENSE for the complete End User License Agreement.