Malicious redirect on my forum
 

It redirect me to:

http://pagesinxt.com/?dn=mydomain.xy....

when i access my forum sub-forums or threads or main page

I looked .htaccess, index.php, forum.php

but i cant find anything. So it might be some addon? how to discover and fix this?

PS: i downloaded all forum files and searched its contects for *pagesinxt* but not found

// EDIT:
- I cleared cache at maxcdn.com which caches my styles and .js
- i disabled all vbulletin Mods one by one.
This redirect no longer is present.. FIXED. But i dont know what Mod causes this yet

// EDIT2:
In my case it is caused by vb Mod: vBSEO 3.6.0 vBulletin SEO
Just disable it and see if redirect goes away...

First thing - upload all new vBulletin files, and overwrite the old.