untitled

private static string CheckApplication(string value)
{
    if (string.IsNullOrWhiteSpace(value))
        return "EMPTY";

    if (value.Contains(
        "icmp",
        StringComparison.OrdinalIgnoreCase))
    {
        return "ICMP DETECTED";
    }

    if (value.Contains(
        "ping",
        StringComparison.OrdinalIgnoreCase))
    {
        return "PING DETECTED";
    }

    return "OK";
}