MalwareHunter is a group of researchers who have been reporting malware-infected computers to relevant authorities in countries all over the globe. The group has been identifying malware campaigns, tracking down malware C&C servers and rummaging through countless of data stolen from infected computers. Most of these attacks are carried out by groups of Nigerian hackers based in Nigeria. The proliferation of hacking tools in recent years has helped previously unskilled spammers elevate their “hacking”” game to new heights of complexity and efficiency.”
Source: https://www.bleepingcomputer.com/news/security/the-nigerian-spammers-from-the-90s-have-moved-on-to-keyloggers-and-rats/