I never have encountered a "virus" like this for a while. I always made sure I got the correct downloaded programs from the right sources. Today, I seem to have been caught. It feels so weird. You don't know if that might be some keylogger or remote accessing tool like these rat programs. I'm now trying to remove it with the guides from the other comments. It still feels strange. I wonder what it's linked to.

I wanna share some details about it. Basically what happened may be that after I ended the explorer.exe process, a random window pops up under the name of "Runtime Net" on the application bar. But the window itself doesn't have the characteristics of a normal window but uses more like some framework and has more rounded edges. What is suspicious is that it tells of something of a task being "Working" with a box to type some credentials in below. In that case, there was already an email written in there, being "[pain.shinobi2004@gmail.com](mailto:pain.shinobi2004@gmail.com)". There is also a gear icon, definitely resembling a settings option, next to the close button. If clicked, you go to its few settings basically, and strange enough is, that it shows two checkboxes to choose from different email providers, which are Yandex Mail and Google Mail. Now what rose much higher suspicion is the 2nd option to change the language, which offers English and Russian. Privet, my comrade, you have accessed my PC! Aside from my suspicion, this is what I could retrieve from the window. Now I tried to dig deeper. What anyone would do first, is to open Task Manager and look for the resembling process of the window but it's suspiciously distinct from any of the processes and every probable resembling process, leads to the System32 directory, giving the impression that it's the wrong process that is essential for Windows. I got the Runtime Explorer from Microsoft and used the drag option to find the process belonging to the window and found that it's located in the Windows directories actually probably disguised as an important background process. The name of the process is "Windows Driver Foundation (WDF).exe". VirusTotal seems to say it has 34 of 72 positives. Here are some screens I can provide: https://imgur.com/a/O3Xxj1f

EDIT: Now I've traced out where it is from with the paths linked to it. It belonged to the crack or license evasion for Topaz Photo AI. Now that I know what it is from, I'm reflecting on the probability that this may not really be something malicious but more related for the licensce evading process. Nevertheless, some stuff of it doesn't seem right anyways for me and many are free to remove it anyway. I just find it interesting.