PSO PC Halloween Patch is detected as a trojan

This happened on a Windows 11 machine. I know it's not, but just a heads up:
i.servimg.com/u/f63/20/53/52/90/ives_h11.png (forum doesn't let me attach a picture)

The patching program is used to modify pso.exe, which is likely to trigger the heuristics of antivirus programs, since this behaviour is similar to what a virus would do. The only difference is that you don't want a virus to modify an executable file, but you do want to modify pso.exe, and antivirus programs detect behaviour, not intent.