HELP! Forum Hacked
 

vbulletin 3.8.5
Just woken up and recieved and sms from one of my members saying that it's been hacked.
Logged on to find the site's been turned into "gaypride queerworld usa" and everything turned into arabic.
Can't log into the admin CP as it says (translated) "Sorry but the department to ban your IP".
As it says to EVERYONE else.
As far as I'm aware someone accessed one of my super mods accounts to change it as one of my members has messaged me saying he was online as it happened saying:
"i forget to close out windows i checked in and it said i was banned then i kept refreshing for awhile watching it change" and only this mod was online.

Anyways, my issue is restoring the site.
My files seem intact on the server, but I've never gone about doing this before.
Can someone help?