Introduction
The integrity of online video games is locked in a perpetual cat-and-mouse battle between anti-cheat developers and cheat engineers. Over the years, we’ve witnessed the rise of increasingly sophisticated evasion tactics, often outpacing those in the antivirus and red-team communities. In this article, we’ll dissect the inner workings of a prominent cheat provider, ring-1.io.
As part of this research, we partially deobfuscated multiple Themida-protected binaries used by ring-1.io, including its UEFI bootloader implant. Several critical functions were recovered to enable static analysis of the implant’s behavior. This work provides visibility into mechanisms that are intentionally designed to resist inspection, including virtualization-assisted hooks, execution redirection, and kernel manipulation techniques.
Ring-1.io has drawn significant attention in recent years, as major game studios like Bungie and Ubisoft pursue legal action to dismantle it, yet it endures despite settlements and ongoing cases that recently uncovered a $12 million Bitcoin stash and new defendants in 2025. This raises a critical question: When lawsuits fail, what’s the next step? That’s where our reverse engineering services come in, tailored for precisely these challenges. Join us for a deep dive into the technical intricacies of ring-1.io.
Table of Contents
Loader
The loader serves as the initial user-mode executable in ring-1.io’s cheat deployment pipeline. Designed for evasion, each loader instance has a unique file hash and self-deletes after execution. This forces customers to redownload a fresh loader with a different filename and hash upon each use, mitigating risks from persistent Windows artifacts such as prefetch files, shim cache entries, and other forensic traces that could be used to flag entire batches of players who have executed the loader.
Communication with ring-1.io’s backend occurs over HTTPS, authenticated via JWT (JSON Web Tokens) for session validation. The loader leverages libcurl as its HTTP client library. To enhance security, HTTP response bodies are encrypted using a custom symmetric scheme: the first 16 bytes of the payload act as the decryption key for the subsequent encrypted data. This approach, while simple, adds a layer of obfuscation against casual interception.
Once a user authenticates and selects the desired cheats, the loader mounts the EFI system partition and replaces bootmgfw.efi and bootx64.efi on disk with modified versions. For each selected cheat, an additional section is appended to the bootloader implant. These section(s) contain the user’s JWT token, the target process name, and the encrypted game cheat binary. On the next system boot, the modified bootmgfw.efi or bootx64.efi executes before the operating system loads, giving the implant full control over the boot process. The bootloader’s entry point is detoured to an appended section called .trp. After the implant entry point executes, control is returned to the original entry point of bootmgfw.efi or bootx64.efi. These modifications inherently violate Secure Boot integrity. As such ring-1 does not support secure boot.
Bootloader Implant
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