I looked, I saw it.
If your not adding that link, and it keeps returning, than obviously you have been hacked, and either the link is being placed there by a malicious plugin that’s firing, or a script..
Heres the standard reply:
fix advice:
https://ocaoimh.ie/2008/06/08/did-your-wordpress-site-get-hacked/
https://www.ads-software.com/search/hacked?forums=1
Make sure that your files on the server are clean. If that means deleting and reuploading, than you ought to do that. Files that you dont replace, should be looked at closely.
Check for files that dont belong, directories that dont belong. Image files with changed timestamps — look at those. Its VERY common for there to be scripts on sites that are named in such a way to mask the fact that theyre scripts.
Be suspicious, when youre looking at things.
Look at your permissions. Do you have world writable files? Any world-writable directories? Are they necessary?
You need to check your database. Look for rogue plugins being loaded, look for rogue users (specifically look for a user named wordpress). You will NOT see rogue plugins or rogue users in your wp-admin/ area. You need to check your database.
Make sure ALL of your plugins are current.
Make sure your wordpress is current.
Change your mysql password that wordpress uses (update your wp-config.php with that new password).
Change any admin level passwords on your blog.
Look at any other software thats being used on your site. Is it current?
That’s just an outline and not a complete list.
There’s quite a bit to do, but it’s all necessary.
If you cant do it all — by all means dont hesitate to enlist the help of someone who can. Quite a few of us do work on the side.
Then there’s this:
https://codex.www.ads-software.com/Hardening_WordPress
At the very bottom of that page, my own plugin is mentioned. I recommend setting it up, and leaving it up, for a week after the site has been secured, and keeping a close eye on the resultant logfile.
