The Biggest Steam Hack This Year Just Happened...
Source: YouTube · SomeOrdinaryGamers · published Jul 28, 2026 · 21:00
The Steam Workshop for the popular indie game Mecha Chameleon contains a critical vulnerability allowing remote code execution (RCE) via malicious custom maps, exploiting Unreal Engine's blueprint system to bypass security measures 2:15.
Key Takeaways:
• Attackers embed malicious batch files in custom map folders, which trigger remote code execution when users load the map without additional interaction 6:30.
• Researchers found that Unreal Engine's "Launch URL" feature is leveraged to execute system commands, allowing hackers to distribute malware through seemingly legitimate user-generated content 5:05.
• The incident escalated when hackers compromised the game developers' Discord server, spreading misinformation and targeting system engineers during the investigation 13:50.
• This highlights a broader cybersecurity risk for indie games on Steam, where user-generated content often lacks robust vetting, leaving millions of players vulnerable to supply chain attacks 15:30.
• Similar cases, such as the FBI arresting a developer for stealing $200,000 via malware-infused Steam games, prove that platform presence does not guarantee safety 16:20.
Users must exercise extreme caution when downloading custom content from the Steam Workshop, as even popular games can harbor significant security risks if third-party mods are not thoroughly vetted.
Sources:
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Transcript Preview
First 800 characters of the transcript
Hello guys and gals, me Mutahar. Do you like using Steam? I know I do. Do you know that there's a lot of malware sitting on Steam? Oh boy. If you've just been downloading any random rinky-dink game and just running whatever files, ladies and gentlemen, you may be hacked. And let's go look into this. This is a game called Mecha Chameleon. Now, on my channel, I do play games. I played this game actually. And I'll be real with you, it's pretty fun. It's prop hunt. You know, you're basically like you're a stick figure. You blend into the environments, you paint yourself into environments. And my one first time playing the game, I'll tell you right now, I absolutely dominated. I don't know why the guy that was playing against us just could not detect one of the best hiding spots that I'd found …