https://blog.wongcw.com/2018/10/14/%e6%97%b6%e8%87%b3%e4%bb%8a%e6%97%a5-%e8%8b%b1%e5%9b%bd%e5%8d%ab%e7%94%9f%e9%83%a8%e9%97%a8%e8%bf%98%e5%9c%a8%e4%b8%bawannacry%e6%93%a6%e5%b1%81%e8%82%a1/