Ji-hoon reached for the power cable, but his hand froze. On his third monitor, the webcam feed of his own room showed a figure standing in the doorway behind him. He spun around. The doorway was empty. He looked back at the screen. The figure was still there, a silhouette draped in purple shadows, wearing a hood.
+--------------------------------------------------------+ | USER MODE | | | | +-----------------------+ +-------------------+ | | | Valorant Client | | Vanguard Client | | | | (Unreal Engine 4) | | (vgc.exe) | | | +-----------+-----------+ +---------+---------+ | +---------------|--------------------------|-------------+ | | ================|==========================|============== +---------------|--------------------------|-------------+ | v v | | +------------------------------------------------+ | | | Windows Kernel | | | +------------------------------------------------+ | | ^ | | | | | +-----------------------+------------------------+ | | | Vanguard Kernel Driver (vgk.sys) | | | +------------------------------------------------+ | | KERNEL MODE | +--------------------------------------------------------+ The Kernel Driver Mechanics
In January 2023, Riot Games confirmed that its development environment was compromised in a social engineering attack. While the attackers exfiltrated the source code for League of Legends , Teamfight Tactics , and a legacy anti-cheat platform, Riot explicitly stated that in this specific breach. Technical Architecture & Languages
Traditional DLL injection methods fail instantly against Vanguard. Any unauthorized attempt to open a handle to the Valorant process or modify its virtual memory space is blocked, and the associated hardware ID (HWID) is flagged for a ban.
The integrity of Riot's software stack faced a direct test during a notable cyberattack in January 2023. The 2023 Social Engineering Incident Valorant Internal Source Code
To ensure the game could run at 144+ FPS on older hardware, Riot removed heavy UE4 subsystems that were unnecessary for a tactical shooter, such as advanced physics grids, complex dynamic lighting, and heavy blueprint overhead. The codebase relies heavily on highly optimized C++ classes. Fog of War: Server-Side Occlusion
A chat window popped up. "You have the package?" Clove asked.
and will result in a permanent account ban. Below is a conceptual guide to the architecture and the high risks involved. 1. Conceptual Architecture: Internal vs. External
: Access player stats, match history, and leaderboard data for building websites or tracking apps. Game Overlays : Use frameworks like Ji-hoon reached for the power cable, but his hand froze
While Riot Games has never officially released the full internal source code for
The source code removes the "fog of war" created by code obfuscation, making it easy to see exactly how Riot encrypts player data and server coordinates [14]. Why You Won't Find It Online
Valorant’s server-side source code implements a system where the server enemy location data from your client until the very millisecond an enemy is about to become visible. Because the internal code doesn't send the data, a cheat on your computer has nothing to "read," effectively neutralizing many traditional wallhacks. 3. Vanguard: The Kernel-Level Guardian
The user-mode service that monitors active memory and handles communication with the game client. The doorway was empty
Ji-hoon navigated to the folder. He found a file titled Radiant_Lore_Draft.txt . It wasn't code. It was a narrative design document from the early days of development. It described a "Fifth Map" that had been scrapped—a city built inside a dimensional rift that looked exactly like the city Ji-hoon was sitting in right now.
The constant arms race surrounding Valorant's internal code highlights the future of digital security. As AI-driven cheats (which use external capture cards and machine learning to aim without touching game memory) become more prevalent, the war is shifting from the local PC client to server-side behavioral analysis.
The server looks at its own master timeline, calculates the bullet trajectory, and decides if the shot hit.
Vanguard initializes immediately during system boot-up to ensure that malicious drivers cannot hide beneath it before it activates. While this deep integration delivers unparalleled protection against cheating, it significantly expands the potential attack surface if the code is ever compromised.