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@chvancooten

Cas van Cooten

chvancooten
Utrecht

Hey 👋! My name is Cas, I'm a Red Teamer based in the Netherlands. In my free time, I like to build offensive security tooling (OST), specifically in the Nim programming language. In the interest of transparency and to support the community in becoming better at offense and defense alike, I also like to publish my projects publicly as open-source software in a responsible manner.

If any of my projects have helped you advance your career 👨‍🏫, strengthen your (malware) development skills🦠, build some sick defensive rules🏯, or net you some bug bounties🤑: with your support I can keep doing what I do! Much appreciated 🙏

5 sponsors have funded chvancooten’s work.

@stevesec
@expl0itabl3
@Sh0ckFR
@jamespichardo
@nickvourd

Featured work

  1. chvancooten/NimPlant

    A light-weight first-stage C2 implant written in Nim (and Rust).

    Rust 810
  2. chvancooten/NimPackt-v1

    Nim-based assembly packer and shellcode loader for opsec & profit

    Nim 457
  3. chvancooten/maldev-for-dummies

    A workshop about Malware Development

    Nim 1,599
  4. chvancooten/OSEP-Code-Snippets

    A repository with my notable code snippets for Offensive Security's PEN-300 (OSEP) course.

    C# 1,175
  5. chvancooten/BugBountyScanner

    A Bash script and Docker image for Bug Bounty reconnaissance. Intended for headless use.

    Shell 879
  6. chvancooten/follina.py

    POC to replicate the full 'Follina' Office RCE vulnerability for testing purposes

    Smarty 1,136

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