This global brute force attack on self hosted WordPress sites has been going on for past few days. I am going to address different cases and attempted solutions here. Please bookmark this Q&A and check back for new case studies.
One site came to my notice today, where the users could not login because the login or admin page got redirected to a page that output “not acceptable“. I checked the .htaccess file and it seemed to have non-standard statements, which neither the developer nor the site-admin remember putting in. So, we removed the extra statements and retained only the default WordPress generated htaccess statements and the site was back to normal.
…to be cont’d…