Thread:Project:Support desk/Hidden texts automatically inserted in old and new pages

When I create a page in my wiki, hidden links are automatically inserted in that page.

Actually I found the problem through google because google reported that my site was hacked. Found out that all my wiki pages has these hidden links. They were all automatically inserted.

Then I discovered today that these links are embedded some place in the wiki to automatically be inserted to all old pages and into newly created pages.

These links are not visible when viewing the page. They do not show up in the browsers. And when I view the source of the page in both wiki and browser none of the links show up. They are all CLOAKED. They only show up when I check it in google webmaster tools.

I just created this page: http://www.zamboanga.com/z/index.php?title=Hacked

And immediately those links were embedded. I used this tool besides google: http://isithacked.com/

If I check my main root site the cloaking do not exist there. The cloaking only exists within the wiki folder.

I have already changed all the admin passwords. I do not have any auto registration. Registration is only done by admin.

I checked with the host server and all is clean from any malware. The target of this cloaking is specifically the mediawiki site within the folder "z".

Apparently this hacking occurred back in November of 2014 and since then we have made thousands of edits in the wiki already, so using a backup to restore is not recommended.

How do I resolve this problem?