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# Requirements
Yara **version 3.0** or higher is required for most of the rules to work. This is mainly due to the use of the "pe" module introduced in that version.
You can check your installed version with `yara -v`
The available packages in Ubuntu 14.04 LTS default repositories are too old. You can install from source or use the packages available in the [Remnux repository](https://launchpad.net/~remnux/+archive/ubuntu/stable).
