Cuckoo Sandbox is the leading open source automated malware analysis system.
What does that mean? It simply means that you can throw any suspicious file at it and in a matter of seconds Cuckoo will provide you back some detailed results outlining what such file did when executed inside an isolated environment.
If you want to contribute to development, please read the development guidelines and the contribution requirements first. Make sure you check our Issues and Pull Requests and that you join our IRC channel.
We also feature a legacy branch where the code is laid out as you have known for the last years up until the 2.0.0 release. In the foreseeable future we'll allow our users to do pull requests against the legacy branch and in return we'll help out with merging to the new master branch. In other words, if you care to see your custom functionality still present after upgrading to the latest version of Cuckoo, we suggest to start on those pull requests.
This is a development version, we do not recommend its use in production.
You can find a full documentation of the latest stable release here.