Wacatac is known Malware I suggest removing it with windows defender and running a full scan of your pc 

Assuming you are using the Windows version and not the HTML, this aligns with what's been reported, though this is my first time seeing a filename (Win32/Wacatac.B!ml). Upon searching for the filename, it appears to just be something that comes up relatively often when converting files into an exe, like what was done with the HTML file to make the Windows version.