https://blog.wongcw.com/2021/02/18/%e7%be%8e%e5%8f%b8%e6%b3%95%e9%83%a8%e6%8a%ab%e9%9c%b2%e6%94%bb%e6%93%8a%e7%b4%a2%e5%b0%bc%e5%92%8c%e6%8d%b2%e5%85%a5wannacry%e5%8b%92%e7%b4%a2%e8%bb%9f%e4%bb%b6%e7%9a%84%e6%9b%b4%e5%a4%9a%e9%bb%91/