My forum has been hacked

[Charis]

Hi,

My forum (eMichanikos.gr) has been hacked.
I cannot log into the adminCP or run tools.php.


I would appreciate any help.
Thanks in advance.

P.S.: I've already read THIS and THAT.
I haven't restored my database yet, but I've restored the default vBulletin files (vB 4.2.2 PL4).
I also checked the config.php and disabled all plugins by adding

PHP Code:

define('DISABLE_HOOKS', true); 


into config.php.