macOS.Gaslight keychain and browser credential harvesting via Python stealer

Detects activity associated with the macOS.Gaslight credential stealer, specifically focusing on Python processes accessing the login.keychain-db, browser credential stores, creating a 'collected_data.zip' archive, and executing security or reconnaissance commands. This rule identifies file events (creation, modification, read, copy) related to keychain and archive staging, as well as process events involving the 'security' command for password extraction and 'ps' or 'system_profiler' for system reconnaissance, all initiated by Python.