Malware Exploit in Meccha Chameleon Steam Workshop Maps Leads to Discord Takeover

Malware Exploit in Meccha Chameleon Steam Workshop Maps Leads to Discord Takeover

First seen 26 Jul 2026, 11:03 UTC ThephrasemakerDexertoFinance.BiggoGosugamersTweaktown+1 83% similarity 70.5

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A malware exploit was discovered in the indie game Meccha Chameleon, affecting players who downloaded custom maps from the Steam Workshop. The initial malware was found in a map called Laser Tag Neon, which contained a dropper that wrote malicious batch files to players' devices. This led to the installation of a Remote Access Trojan (RAT) on compromised systems. The game's developer, Haganeiro, confirmed the vulnerability was patched in update 3.1.0, and all identified malicious maps have been removed. However, players are advised to scan their systems for signs of compromise. The attack also resulted in a breach of the game's official Discord server, where an attacker gained control and spread false information. The incident has raised significant concerns within the gaming community regarding the safety of user-generated content on platforms like Steam.

Key Points: • Malicious maps in Meccha Chameleon infected players' PCs with a Remote Access Trojan. • The game's developer confirmed the vulnerability was patched in update 3.1.0. • Players are urged to scan their systems and avoid the original Discord server due to a takeover.

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Timeline

2026-07-23
Malware exploit discovered in Workshop map
Security researcher Feint found malware in the Laser Tag Neon map, which wrote batch files to players' devices.
Medium.com
2026-07-25
Developer releases patch 3.1.0
Haganeiro confirmed that the vulnerability in custom maps was fixed with the release of update 3.1.0.
Gosugamers
2026-07-25
Second-stage payload analyzed
Feint recovered and analyzed the second-stage payload, confirming it installed a RAT on affected systems.
Medium.com
2026-07-26
Discord server compromised
An attacker took over the official Discord server after compromising a developer's PC during the investigation.
Dexerto
2026-07-27
All identified malicious maps removed
Developer confirmed that all identified malicious Workshop maps have been removed from Steam.
Medium.com

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