Obsidian Spawning Shell or Scripting Interpreter
This rule detects when the Obsidian application (obsidian.exe) spawns common shell or scripting interpreters such as PowerShell, cmd.exe, sh, bash, zsh, or osascript. This activity could indicate malicious code execution originating from a potentially compromised or weaponized Obsidian instance, or an attempt to leverage Obsidian's capabilities for unauthorized command execution. The inclusion of 'osascript' specifically addresses observed macOS attack chains (REF6598).
CQL
