I built my blog on July 27, 2017 by using GitHub Pages and Hexo. After that I post some articles on it, not too many, just 4 posts, then I dropped it. The latest post was post on July 27, 2018. This means that the blog was only active for one year, then it became inactive although it was still online. There are two reasons for this result. One is that I was too lazy to update it, the other is that I tried to write posts in English so that more people can understand, however I am not a native English speaker, my English skill is not good enough for me to write posts. Sometimes I have something to be written down, I can express it well in Chinese easily but when I try using English, I can’t even express what I want to say well.

Prologue

I’m using Microsoft Windows 8.1 as my operating system. Several days ago, I was told by Windows Defender that a malware was detected and removed. I thought it was KMSpico, which can activate my OS and Microsoft Office illegally, that is removed. This kind of things happened a lot before but I didn’t think it would happen again this time because I had add KMSpico to the exception list of Window Defender so that it would be trusted. Then I checked the detected and quarantined item named Trojan:Win32/CoinMner with details that: