What harm does this file do?

Question

assembler

I don't understand anything in Assembler. I am engaged in WEB.
The son downloaded the file and ran it under Windows, after which a window appeared asking for a password.
I successfully closed everything via ctrl+alt+del and restarted the system.
But now I'm wondering what this .exe file did in the system. Hasn't it spread?
Maybe there is someone who can read his actions, or tell me how you can do it yourself.
file here
Opened it with notepad, but did not understand anything.

Answer 1

it looks like a winlocker with a blue screen asking for an activation code.
It's strange that it closed like that. Could register somewhere, do a full scan.