Rust

AmnesiaStealer Malware for macOS Hijacks Authenticated Browser Sessions via ClickFix and Chromium

A new macOS malware strain named AmnesiaStealer has emerged that combines infostealing, persistence mechanisms, and the ability to silently take over already authenticated browser sessions. The infection chain begins with a fake GitHub page that tricks victims into copying a malicious command into Terminal using the ClickFix social engineering technique. Once executed, the Rust-based payload collects system data, displays a fake installer window to capture the user password, and attempts to unlock the Keychain for protected credentials. Targeted data includes browser cookies, history, extensions, documents, Apple Notes, Telegram sessions, and cryptocurrency wallet information. A secondary module copies the browser profile and launches a hidden Chromium instance controlled through the Chrome DevTools Protocol, allowing attackers to interact with active sessions that have already passed multi-factor authentication. Persistence is achieved via a disguised LaunchDaemon, and the malware attempts to remove installation artifacts afterward.