Est. 2022 · Worldwide

Security at
the lowest
level.

Open-source systems engineering and security research.

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Engineering at
every layer

01

Low-Level & Kernel

Ring-0 development, hypervisor security, Windows Kernel debugging, HAL internals, and memory mapping. We go where most engineers stop.

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02

Cryptography & PKI

Public key infrastructure, distributed trust architectures, 3-Point Security models, and high-security protocol design grounded in mathematical rigor.

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03

C2 Infrastructure

Design and implementation of full command-and-control infrastructure — Rust server, C++ agent — built for cybersecurity research and simulation environments.

Actrax on GitHub →
04

Reverse Engineering

Binary analysis, deconstruction of complex software systems, and identification of low-level vulnerabilities using Ghidra and custom tooling.

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"Security is not a feature — it is the foundation everything else is built upon."
2022 Stuttgart, Germany

Open-source.
No compromise.

Sparx.Foundation is an open-source security engineering organization building tooling for cybersecurity research, systems programming, and low-level infrastructure.

We operate at the intersection of kernel engineering, cryptography, and offensive security research. Our projects — from C2 infrastructure to Rust core libraries — are built in the open, licensed transparently under our FOUL (Fair Open-Use License), and engineered to the highest technical standard.

  • Open-source first — transparent, auditable, reproducible
  • Rust & C++ — performance and correctness at every layer
  • Research-grade security, production-grade engineering
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Built in the
open

Rust · C2 Infrastructure · AGPL-3.0

Actrax — C2 Server

A full command-and-control server written in Rust. Designed for cybersecurity simulations and red-team research. Paired with the Actrax Demon C++ agent for a complete C2 stack.

C++ · Agent · GPL-3.0

Actrax Demon

The C++ agent component of the Actrax C2 infrastructure. Early-stage implant development for simulation environments.

Licensing · Open Source

FOUL License

The Fair Open-Use License — a transparent, purpose-built license for security research and open-source infrastructure projects.

All repositories on GitHub ↗

Contribute or
collaborate.

We welcome contributors, security researchers, and collaborators. Reach out or open an issue on GitHub.