I recently found out that my website was hacked. I have been unable to login to the WordPress dashboard since then. It doesn’t even show up. It redirects and crashes, showing only a white screen.
I recently found a folder in the wp-content folder that is named mu-plugin. When I click on the file contained in the folder and try to delete it, it says I don’t have permission to perform that function. I also can’t edit, rename, or otherwise change the folder or file. When I read the file in the editor, it was clear that this file was uploaded from the person who hacked the site and it is a direction to crash the login page whenever login is called for.
Any help or suggestions would be appreciated.