As i mentioned before, i know hosting these files on our local server is not the best practice. There are other businesses doing this thing and Google is not marking them harmful. All files are zipped with a password, we provide the password to users.

Also, the filename is not a unique indicator the identify a file as malware. I can put the filename as "Google Chrome.exe" and that doesn't mean this is a malware.

The second issue is, we just changed the our domain name and when i try to add it to "Authorized redirect URIs" for Oauth getting this error: "The request has been classified as abusive and was not allowed to proceed". So, i have no idea about what is going on about my domain.