A library for integrating communication channels with the Cobalt Strike External C2 server

This library provides an implementation of the Cobalt Strike External C2 spec, including a basic web channel and a websocket channel. The codebase has been documented and designed to allow additional channels to be added easily.

This readme is not done yet, because coding is more enjoyable than writing documentation. However, the code is heavily commented and you should be reading that first, right? I recommend building the solution and stepping through the tests.

Features

Implemented C2 Channels:

• Direct Socket Connection
• Web API Channel (Dotnet Core)
• WebSockets Channel (Dotnet Core)

TODO: Update this section

Getting started

The solution should be built with Visual Studio 2017. More info will be added here soon.

TODO: Update this section

Developing

TODO: Update this section

Building

TODO: Update this section

Deploying

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Contributing

TODO: Update this section

License

ExternalC2 is open-sourced software licensed under the MIT license.