I have installed beastminer on my crashy test pc.
It is indeed installing a Trojan Horse.
If you have downloaded Beastminer... you may do the following.
Windows ;
1. Exit Beastminer
2. Delete downloaded files
3. Ctrl+alt+delete, Task managers, shut down beastminer ( Yes, again )
4. Go to C:/users/*username*/appdata/local/
5. Delete the Beastminer folder
6. If you cant delete the beastminer folder, repeat step 3 and rapidly do step 5.
7. Optionnal - Do a antivirus check.
8. If you can't see appdata folder - enable the visibility of your hided folders.
Beastminer = scam = there is the trojan in their software = infiltrating the user's desktop = finally it's more than just a scam site but already including criminal sites, because they trying for spreading their virus into a lot of the users.