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CrystalForge

★ 63 Open GitHub ↗

AdaptixC2 default beacon agent extended to support Crystal Palace loaders.

// repository documentation

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# CrystalForge

CrystalForge is a custom [AdaptixC2][1] agent that modifies the default beacon agent to support a [Crystal Palace][2] based UDRL pipeline.

The goal is simple: make it easier to bring custom Crystal Palace loaders into AdaptixC2 payload generation.

## Features

* Custom AdaptixC2 agent plugin
* Crystal Palace-based UDRL integration
* DLL and shellcode payload generation
* Custom Crystal Palace spec selection during payload generation
* Multi-transport beacon support inherited from the Adaptix beacon
* Default AdaptixC2 beacon feature set preserved

## Installation

Add CrystalForge to your AdaptixC2 extenders:

```bash
git clone https://github.com/k1ng0fn0th1ng/CrystalForge AdaptixC2/AdaptixServer/extenders/CrystalForge
cd AdaptixC2/AdaptixServer
go work use extenders/CrystalForge
go work sync
cd ..
make extenders
```

### Add CrystalForge to Adaptix profile

Open your Adaptix `profile.yaml` and add CrystalForge under the `extenders` section:

```yaml
extenders:
  - "extenders/CrystalForge/config.yaml"
```

Or insert it automatically from the Adaptix server directory:

```bash
awk '
/extenders:/ && !done {
  print
  print "    - \"extenders/CrystalForge/config.yaml\""
  done=1
  next
}
{ print }
' profile.yaml > tmp && mv tmp profile.yaml
```

### Register CrystalForge in Extension-Kit

If you use the Adaptix [Extension-Kit][3], register CrystalForge as a supported agent:

```bash
./add_agent.sh CrystalForge
```

Then reload the Extension-Kit AXScript from the Adaptix client.

## Usage

When generating a CrystalForge payload from Adaptix, select the desired output format:

* DLL
* Shellcode

DLL output returns the default Adaptix DLL.

Shellcode output uses Crystal Palace to process the intermediate DLL through the selected `.spec` file.

### Bring your Crystal Palace UDRL

The UI allows you to specify a Crystal Palace `.spec` file. If no custom spec is provided, the default loader spec is used.

The loader referenced by the spec must already be compiled. CrystalForge links the intermediate DLL with Crystal Palace, but it does not build arbitrary external loader projects automatically.

## Design Goals

* Provide custom UDRL to AdaptixC2 to increase evasion
* Provide an easy way to integrate Crystal Palace loaders with AdaptixC2
* Make Crystal Palace easier to use from a public C2 workflow
* Define a flexible loader code to implement any technique easily
* Preserve the Adaptix beacon workflow where possible
* Provide a flexible base for experimenting with custom loader techniques

## Limitations

* EXE and service executable outputs are not implemented yet.
* Dynamically resolved APIs are not hooked; only functions resolved via the IAT are affected.
* Crystal Palace loader components must be built before they are referenced by a spec file.

## Roadmap

* Add EXE output
* Add service executable output
* Expand API hooking coverage inside the Adaptix beacon path

## References & Credits

* [AdaptixC2][1] - original beacon and extender model
* [Crystal Palace][2] - core framework
* Rasta Mouse - [Crystal-Kit][4], [LibGate][5], [CRTL][6] research inspiration
* [Draugr][7] - stack spoofing

## Disclaimer

This project is intended for security research, development, and educational purposes in authorized environments only.

Unauthorized use against systems you do not own or do not have explicit permission to test is illegal.

## License

This project is licensed under the MIT License.

See the LICENSE file for more details.

[1]: https://github.com/Adaptix-Framework/AdaptixC2
[2]: https://tradecraftgarden.org/crystalpalace.html
[3]: https://github.com/Adaptix-Framework/Extension-Kit
[4]: https://github.com/rasta-mouse/Crystal-Kit
[5]: https://github.com/rasta-mouse/LibGate
[6]: https://www.zeropointsecurity.co.uk/course/red-team-ops-ii
[7]: https://github.com/NtDallas/Draugr

CrystalForge

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