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Mach-O Prettifier

A Mach-O Load Command deobfuscator.

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Description

The source code served as an example, it is, by no means, a commercial grade product. It might contain errors or flaws, and it was created for demonstration purpose only.

Apple allows it's binary to run with incorrect load command names in the header, which is a great thing to prevent unnecessary error for the end users. However, this will break most of the debugging tools currently available on OS X. (IDA Pro, Hopper, gdb...etc.) Some malware might use this an anti-debugging trick. This tool will analyze the load command structures and try to restore it's original names so it can be debugged.

The following architectures are supported by Mach-O Prettifier:

  • i386
  • x86_64
  • Fat (i386 + x86_64)

PowerPC (PPC) is not support by this tool.

To compile:

clang mpfr.c -O2 -o mpfr

Changelog

v0.1:

  • Initial release.

License

Copyright (C) 2014 Cai, Zhi-Wei.

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

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A Mach-O Load Command deobfuscator.

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