> For the complete documentation index, see [llms.txt](https://rasta-mouse.gitbook.io/crystalc2/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://rasta-mouse.gitbook.io/crystalc2/readme.md).

# CrystalC2

## CrystalC2

A command and control framework, mostly to keep myself occupied and out of trouble...

### Highlights

CrystalC2's post-exploitation agent is built from modular position-independent code (PIC) parts, weaved together using [Crystal Palace](https://tradecraftgarden.org/).  The purpose of the project is to explore the left and right bounds of CPL's [Aspect-Oriented Programming](https://aff-wg.org/2025/11/10/tradecraft-engineering-with-aspect-oriented-programming/) (AOP) and [bin2bin](https://aff-wg.org/2026/01/13/keeping-bin2bin-out-of-the-bin/) paradigms when applied to various aspects of a C2 agent.

Challenge areas that come to mind include:

* load-time evasion:  loading PIC into a process and bootstrapping its execution.
* runtime evasion:  minimising the indicators of PIC running in memory.
* post-exploitation evasion:  running 3rd party code/tools.

### Outcomes

The long-term goal is to provide users with the flexibility to apply any evasion tradecraft strategies they wish to the Beacon agent and its loader.