Hi, I’m trying to delete a malicious user who is registered as an Admin and getting the following error message:
You have specified this user for deletion:
ID #11: wp_update-857c9c14 The current user will not be deleted.
There are no valid users selected for deletion.
The same malicious code that injected that user into your database is probably tied into the WordPress core to prevent you from using WordPress to delete that user. You should just remove that user record directly from the wp_users table using PhpMyAdmin or whatever database tools are available in your hosting control panel.