AMOS Child Process Detach via setsid and killall Terminal

Ethan Andrews@eandrews

•updated Jun 23, 2026•0•0•3

Detects AMOS malware forking a child process, using setsid to detach from the Terminal session, and then killing the Terminal window via killall Terminal to evade parent-process tracking. This is a key behavioral indicator of the Atomic macOS Stealer delivered via ClickFix campaigns.