def rule(event):
    if any(
        [
            "-export dll_u" in event.deep_get("CommandLine", default=""),
            any(
                [
                    event.deep_get("CommandLine", default="").endswith(",dll_u"),
                    event.deep_get("CommandLine", default="").endswith(" dll_u"),
                ]
            ),
        ]
    ):
        return True
    return False
