external_c2 framework vs Havoc Framework: side-by-side comparison (2026)

external_c2 framework: A Python framework for building custom Command and Control interfaces that implements Cobalt Strike's External C2 specification for data transfer between frameworks.

Havoc Framework: Open-source C2 framework for red team ops and adversary simulation.

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

external_c2 framework is open-source with 241 GitHub stars. Havoc Framework is open-source with 8,237 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

Often, yes. external_c2 framework and Havoc Framework are both Red-Team & Adversary Emulation products, and both cover C2, Red Team. Use the table above to see where features, deployment and company size fit differ.