Cobalt Strike's ExternalC2 framework vs Covenant: side-by-side comparison (2026)

Cobalt Strike's ExternalC2 framework: A specification/framework for extending default C2 communication channels in Cobalt Strike.

Covenant: Covenant is a collaborative .NET command and control framework designed for red team operations and offensive security engagements.

The table above shows where their features, integrations, deployment and company size fit differ.

Often, yes. Cobalt Strike's ExternalC2 framework and Covenant are both Red-Team & Adversary Emulation products, and both cover C2. Key differences: Covenant is open-source. Use the table above to see where features, deployment and company size fit differ.