def rule(event):
    if all(
        [
            event.deep_get("ParentImage", default="").endswith("\\EdgeTransport.exe"),
            not any(
                [
                    event.deep_get("Image", default="") == "C:\\Windows\\System32\\conhost.exe",
                    all(
                        [
                            event.deep_get("Image", default="").startswith(
                                "C:\\Program Files\\Microsoft\\Exchange Server\\"
                            ),
                            event.deep_get("Image", default="").endswith("\\Bin\\OleConverter.exe"),
                        ]
                    ),
                ]
            ),
        ]
    ):
        return True
    return False
