.NET-based open-source C2 framework with a web UI.
$ covenant --help
Covenant
// what it is
Ryan Cobb's collaborative red-team C2 — multiplayer dashboard, C# 'grunts' (implants), built-in launchers. Less polished than Cobalt Strike but free.
// use cases
// facts
// links
// related in Exploitation
Rapid7's open-source exploitation framework — thousands of exploit modules.
Commercial adversary simulation — the industry-standard red-team C2.
Bishop Fox's open-source cross-platform C2 — a rising Cobalt Strike alternative.