CastleLoader Anomalous AutoIt Execution
Detects the execution of AutoIt3.exe (or renamed versions) from non-standard paths or with suspicious script extensions, which is indicative of CastleLoader activity. This rule specifically looks for AutoIt interpreter execution, including renamed files with .pif or .com extensions, originating from common temporary or user-writable directories like AppData or Temp, and executing suspicious script file extensions such as .a3x, .t, or .vstm, or very short command lines.
Microsoft Sentinel (KQL)
