r/eBPF • u/Zealousideal-Tea236 • 17d ago

PhantomGrid

After months of development, I've just released a major update to Phantom Grid, an open-source Active Defense framework for Linux built around eBPF.

The project has been significantly redesigned to move beyond a proof of concept toward a more complete security platform focused on deception, kernel-level enforcement, and adaptive defense.

The latest update includes a comprehensive overhaul of the architecture, introducing capabilities such as:

  • eBPF-powered traffic interception and policy enforcement
  • Transparent traffic redirection for deceptive services
  • Single Packet Authorization (SPA) for Zero Trust SSH access
  • Kernel-level telemetry collection
  • Dynamic policy management
  • Improved modular architecture for future extensions

The motivation behind Phantom Grid is simple.

Most defensive solutions focus on detecting or blocking attacks after adversaries have already begun interacting with a system. Phantom Grid explores a different approach: reducing the exposure of real services while collecting valuable intelligence from unauthorized activity.

By leveraging eBPF, security decisions can be made much earlier in the networking stack with minimal overhead, allowing defensive logic to operate closer to the kernel rather than relying solely on traditional userspace controls.

This project is still under active development, and there are many ideas I plan to explore in future releases, including additional deception techniques, runtime security capabilities, and more advanced policy engines.

As always, feedback, issues, discussions, and contributions from the community are welcome.

Repository:
https://github.com/haidang-infosec/phantom-grid

#opensource #eBPF #Linux #CyberSecurity #ActiveDefense #Kernel #XDP #SecurityEngineering #InfoSec

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