Using this kind of script is of course a personal risk in dealing with viruses. However, in my experience this kind of injector likely includes an application not recognized by the defender therefore the defender issues such a warning. My solution is to turn off the antivirus before extracting or running MHProject.
Since February I use this injector, my pc is safe.
After I use it, I usually delete the extracts and antivirus scans so as not to interfere with the use of other applications or make us feel safe. Sorry for my bad english.