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Library for manipulation of YARA files.

Project description

Travis CI build status AppVeyor build status

yaramod is a library that provides parsing of YARA rules into AST and a C++ programming interface to build new YARA rulesets. This project is not associated with the YARA project.

yaramod also comes with Python bindings and this repository should be fully compatible with installation using pip.

Usage Example

See the wiki.


  • C++ compiler with C++14 support
  • On Windows, only Microsoft Visual C++ is supported (version >= Visual Studio 2015).
  • CMake (version >= 3.6)
  • Flex (version >= 2.6)
  • Bison (version >= 3.0)

If you are also insterested in Python bindings: * GCC 5+ (for Linux/Unix, should remain the same for other compilers and platforms) * Python 3+

Build and Installation

  • Clone the repository:
  • git clone
  • Linux:
  • cd yaramod
  • mkdir build && cd build
  • cmake -DCMAKE_BUILD_TYPE=<Debug|Release> .. [OPTIONS...]
  • make -jN (N is the number of CPU cores to use for parallel build)
  • Windows:
  • Open a command prompt (e.g. C:\msys64\msys2_shell.cmd from MSYS2)
  • cd yaramod
  • mkdir build && cd build
  • cmake -G<generator> .. [OPTIONS...]
    • -G<generator> is -G"Visual Studio 14 2015" for 32-bit build using Visual Studio 2015, or -G"Visual Studio 14 2015 Win64" for 64-bit build using Visual Studio 2015. Of course, any later version of Visual Studio may be used.
  • cmake --build . --config Release -- -m
  • Alternatively, you can open yaramod.sln generated by cmake in Visual Studio IDE.

Available options are: * YARAMOD_DOC - provide build target doc for building documentation with Doxygen. (Default: OFF) * YARAMOD_TESTS - build unit tests. (Default: OFF) * YARAMOD_PYTHON - build python bindings. (Default: OFF) * YARAMOD_EXAMPLES - build example binaries. (Default: OFF)

Python bindings

The easiest way to get Python bindings to work is through pip like this:

pip install git+

If you want to clone and build the repository yourselves you can do so by following these steps:

  • Setup virtual environment if you don’t want to install yaramod into your system python:
  • ./
  • source
  • Run compilation and installation of python bindings:
  • python build OPTIONS
  • python install
  • Allowed OPTIONS are:
  • --with-unit-tests - Build also C++ unit tests.
  • --debug - Build debug configuration.

API Documentation

You can generate the API documentation by yourself. Pass -DYARAMOD_DOC=ON to cmake and run make doc.


Copyright (c) 2017 Avast Software, licensed under the MIT license. See the LICENSE file for more details.

yaramod uses third-party libraries or other resources listed, along with their licenses, in the LICENSE-THIRD-PARTY file.


See RetDec contribution guidelines.

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