This WordPress site (53 pages for an engineering firm) was hacked, but we cleaned it and ran scans with WordFence. We upgraded to WordPress 6.0, but now we cannot get into the Dashboard. It seems to accept our login, but keeps us on the login screen. There are backups on the server, and backups in Dropbox (through Updraft). We tried disabling WordFence with FTP, but that did not solve the problem. Corrected a few file permission settings also.
We need someone to try the other approaches and restore access by the night of July 30, 2022.
You will get FTP access and can be given cPanel access too. Server backups are probably infected with a backdoor virus that was showing Pharmacy ads on the website. UpDraft backups might go back before the hack. If we can restore access without using a backup, that would be better.