Bonelab-goldberg | RECOMMENDED |

Author: J. V. Neumann Institute for Digital Forensics Date: April 17, 2026

This paper examines the runtime behavior of BONELAB (Stress Level Zero, 2022) as distributed by the warez group GoldBerg . While the retail version employs a multi-layered digital rights management (DRM) system—including SteamStub and integrity checks tied to the Mono scripting backend—the GoldBerg bypass modifies the Portable Executable (PE) header and patches JIT-compiled instruction streams. Our findings indicate that the crack not only neutralizes license checks but inadvertently alters the physics tick rate by 0.73% due to a hook injected into UnityPlayer.dll . We conclude that group-specific release patterns leave distinct forensic artifacts. BONELAB-GoldBerg

| Feature | Retail Version | GoldBerg Crack | | :--- | :--- | :--- | | DRM Scheme | SteamStub + Custom | None (stripped) | | Entry Point | Original EP (encrypted) | New EP in .text section | | Physics Loop | Direct calls to Time.fixedDeltaTime | Indirect call via GoldBerg_hook | | Avatar Load Time | 2.1s (avg) | 2.3s (+9.5%) | Author: J

The group inserted a 147-byte shellcode block that hijacks GetModuleHandleA to return fake handles for steam_api64.dll . This is typical, but unique to this release is a secondary check: a debug trap ( int 3 ) that spins if process memory > 2.1 GB (causing a softlock in the “Long Run” level). While the retail version employs a multi-layered digital

BONELAB is a critical case for DRM study due to its reliance on precise, frame-dependent physics (the “Marrow” engine). The GoldBerg release (noted as BONELAB-GoldBerg ) bypasses Steam ownership validation. This study asks: What are the technical fingerprints of this specific crack?

No software was executed on production hardware. Analysis performed in a sandboxed Windows 10 LTSC VM.