GhostSurface

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║     G H O S T C O R E   V E R S I O N     ║
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» CumulusTap – Red Team Extension Loader
» v1.0.0 / "Umbra Seed"

"Inject the silence. Speak in memory."
🧬 PURPOSE
This is a modular red team extension designed to leverage Chromium’s offscreen rendering, IndexedDB storage, and controlled memory corruption to stage and detonate shellcode inside the browser runtime. Stealth-first. Sandbox-aware. Persistence-optional.

📁 FILE STRUCTURE
manifest.json – Core config. Declares offscreen context, background script, permissions.

offscreen.html – Hidden execution layer. Stages JS & WASM away from prying eyes.

offscreen_compiled.js – Memory logic lives here. JS primitives + RWX mapping.

background_compiled.js – Trigger orchestration. Could be reactive or scheduled.

exploit.js – Runtime detonation. Precision memory abuse + WebAssembly trampoline.

verified_contents.json – Cosmetic. Mimics Chrome signing for legitimacy.

messages.json – Filler. Gives the extension a mundane face.

🔧 HOW IT WORKS
Stage: JS primitives open a memory playground using offscreen contexts.

Exploit: RWX page via WebAssembly. Shellcode mapped and written.

Execute: Trampoline invoked through JIT spray or Function call.

Persist (Optional): SQL memory dumps. Extension reloads rehydrate.

🌑 FEATURES
Offscreen memory manipulation

IndexedDB persistence layer

Arbitrary memory read/write via JS

WebAssembly RWX trampoline

Chrome-native extension shellcode launch

Fully client-side

💀 USE CASES
Internal red team ops

Post-exploitation browser persistence

Payload staging via browser extension

Sandbox-aware shellcode execution

⚠️ OPERATIONAL NOTES
Chrome sandbox remains unless chained w/ LPE

File access must be disabled for dev load

Chrome may log offscreen activity – monitor DevTools

Memory offsets may shift per Chrome version – validate pre-deploy

Deployment-
$ chrome.exe --disable-extensions-file-access-check \
             --load-extension=/path/to/ghostcore_bundle
📝 DISCLAIMER
This tool is designed for authorized adversary simulation only. If you’re using this without permission, you already know you're the problem.

GhostCore doesn’t babysit. It leaves no fingerprints.

"Malware is noisy. Ghosts don’t scream." – GhostCore Manifesto, Line 0x00
https://drive.proton.me/urls/MZNG3H1P9C#E6B3tjHJ0m16