Havoc
Modern malleable post-exploitation C2 framework with a teamserver, Qt client, and extensible agents.
GitHub repository archived by the owner on February 20, 2026 and now read-only. No further updates or fixes. See https://github.com/HavocFramework/Havoc
Technical Architecture & Overview
Havoc is an open source command and control framework built around a teamserver and a graphical client, with a Demon agent supporting sleep obfuscation and indirect syscalls, and customizable C2 profiles. Extensions and modules let operators customize implant behavior. The framework was created by C5pider, with contributions from community members. The GitHub repository was archived in February 2026, is read-only, and no longer receives updates.
Targeted Technical Use Cases
Authorized red team campaigns that need a modern open source C2 with customizable evasion properties.
Evaluation & Trade-offs
Core Strengths
- +Go teamserver, C++ and Qt client, and a Demon agent written in C and ASM, with official documentation.
- +Customization through C2 profiles and a modular design.
Trade-Offs & Limitations
- -Repository is archived; no further fixes or agent updates.
- -Real-world abuse means defenders should also know its indicators.
Defensive Security Application
Adversary emulation that validates EDR coverage against current tradecraft, plus a known C2 to build detections for.
Frequently Asked Questions
What is Havoc?→
Havoc is an open source command and control framework built around a teamserver and a graphical client, with a Demon agent supporting sleep obfuscation and indirect syscalls, and customizable C2 profiles. Extensions and modules let operators customize implant behavior. The framework was created by C5pider, with contributions from community members. The GitHub repository was archived in February 2026, is read-only, and no longer receives updates.
What is Havoc used for?→
Authorized red team campaigns that need a modern open source C2 with customizable evasion properties.
What are the strengths of Havoc?→
- +Go teamserver, C++ and Qt client, and a Demon agent written in C and ASM, with official documentation.
- +Customization through C2 profiles and a modular design.
What are the limitations of Havoc?→
- +Repository is archived; no further fixes or agent updates.
- +Real-world abuse means defenders should also know its indicators.
How is Havoc used defensively?→
Adversary emulation that validates EDR coverage against current tradecraft, plus a known C2 to build detections for.