def rule(event):
    if all(
        [
            event.deep_get("Image", default="").endswith("\\rundll32.exe"),
            "\\Control Panel\\Desktop\\SCRNSAVE.EXE" in event.deep_get("TargetObject", default=""),
            event.deep_get("Details", default="").endswith(".scr"),
            not any(
                [
                    "C:\\Windows\\System32\\" in event.deep_get("Details", default=""),
                    "C:\\Windows\\SysWOW64\\" in event.deep_get("Details", default=""),
                ]
            ),
        ]
    ):
        return True
    return False
