What are the methods used to make LOGS/DUMPS?

[Plakt0ets]

How do people make logs, get all that information from pc's all over the world. We see ridiculous amounts of leaks everyday, dont know how many of them keep getting recycled into next logs. Instead of wasting my time on something to which millions of people have already access to, i would like to learn how to make them myself. I know its not as easy as few clicks and done. But I have time and interest in this to learn it. If anyone has some kind of a link to some post explaining this or some tutorial e-books i would really appreciate it. thanks