https://blog.wongcw.com/2020/11/09/%e5%8d%a1%e5%b7%b4%e6%96%af%e5%9f%ba%e6%9b%9d%e5%85%89%e9%87%9d%e5%b0%8dlinux%e5%b9%b3%e5%8f%b0%e7%9a%84ransonexx%e5%8b%92%e7%b4%a2%e8%bb%9f%e4%bb%b6/