CUSTOM BIOS MAINBOARD — AMD & INTEL

10/29/2026 04:39 Underground.#1
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Firmware-Level Architecture, System Compatibility & Anti-Cheat Security Research

What is a Custom BIOS?

A Custom BIOS is a modified motherboard firmware designed to alter selected low-level system configurations and hardware initialization behavior. Depending on the platform and implementation, firmware modifications may affect how the operating system and security software interact with the underlying hardware.

Ring −2 Architecture — Research Overview

This project investigates claims surrounding firmware-level execution below conventional operating-system security layers, commonly described in this context as Ring −2. The research examines how such implementations relate to Ring 0 kernel-level anti-cheat systems and Ring −1 hypervisor-based security mechanisms.

Compatibility & Testing

The reported test environment includes Easy Anti-Cheat (EAC), BattlEye, FACEIT Anti-Cheat and Riot Vanguard. Compatibility with Secure Boot, IOMMU/VT-d and Windows Core Isolation is also part of the evaluation and was successful


Supported Platforms: AMD & Intel

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How it works: