Cybercriminals set up fake Rockstar Games websites advertising a nonexistent GTA 6 demo and “Extended Look” content, then pushed a malicious Windows file named gta6_installer.exe to users searching for leaked footage, maps, or unofficial builds. Researchers identified the payload as Vidar infostealer, a malware family that harvests saved passwords, session cookies, browser history, autofill data, and credentials from other applications, creating a high risk of account takeover through stolen authenticated sessions.
The campaign exploited renewed public interest in leaked Grand Theft Auto VI material and used cloned branding tied to Rockstar’s legitimate promotion while inserting deceptive download and “Play Now” buttons. Reporting indicates the sample targeted 19 browsers and additional software including Thunderbird, some FTP clients, and browser components used by other applications, while also relying on dead-drop resolver profiles on Telegram, Pinterest, and Steam Community to locate attacker infrastructure. Published indicators include malicious domains, associated Vidar infrastructure, and a SHA-256 hash for the sample, and defenders advised affected users to scan infected systems, change passwords from a clean device, revoke active sessions, and remove unknown devices or app authorizations.

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The malicious file gta6_installer.exe, identified as Vidar infostealer, was first seen on August 19, 2026. The campaign used fake Rockstar-themed GTA 6 demo sites to lure users into downloading malware instead of legitimate game content.
On August 18, 2026, new GTA 6 gameplay footage and an apparent full map of Leonida began circulating online, driving renewed public interest. A person or group calling itself Cyberleek claimed responsibility for the leaks.
Researchers reported that the fake GTA 6 sites distributed Vidar via domains including gta6demo.asia, gta6demo.eu, gta6demo.us, and rockstar-gta-6.com, and documented dead-drop resolver profiles on Telegram, Pinterest, and Steam Community. They also published the SHA-256 hash for gta6_installer.exe and associated Vidar infrastructure, including observed connections to ses.1001gacor.org and ket.sm188daftar.mom.
After the leaks circulated, Rockstar Games and Take-Two responded with takedowns. Take-Two also filed DMCA subpoenas seeking records from Microsoft and Discord to help identify the source of the leaks.
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