Fake Claude Opus 5 app delivers malware and wipes its own tracks

Sep 01, 2026 - 14:30
Fake Claude Opus 5 app delivers malware and wipes its own tracks

A malicious GitHub repository impersonating Anthropic and claiming to offer free access to “Claude Opus 5” is delivering RevStealer, Windows information-stealing malware that targets passwords, cryptocurrency wallet data and login credentials, according to Morphisec. Repository README using Claude Opus 5 branding and a “Free” hook (Source: Morphisec) “RevStealer is a Windows information stealer that is built to work quietly,” researchers explained. The campaign relies on social engineering, with victims steered to GitHub repositories that look … More

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