If you’re unable to clean your site(s) successfully, there are reputable organizations that can clean your sites for you. Sucuri and Wordfence are a couple.
]]>1. Restore to a previous backup if you have it (if not no worries!)
2. Change WP passwords for any admin user on your website. Remove outdated admin if you have any.
3. Change the password to your web host and FTP server.
4. Back up your website.
5. Install the WordFence plugin and run a scan.
6. Delete any suspicious files.