Windows 7 - Site Hacked

So my father was hosting an website for my hockey team using joomla, and now he got hacked by 2 ****'tards who named themself P@3T_B@Y and S3cure.
I have no idea how they got in or what they wanna do but i just wanna get our website back, plz help me how to get those moron's out of there. I googled them and they hacked a lot of websites for no reason.

,Wiisper

Ready to sweat then go through this....
A Video over here
[ame=http://www.revver.com/video/783600/how-to-fix-a-hacked-joomla-site/]How to fix a hacked Joomla site by jeradhill -- Revver Online Video Sharing Network[/ame]
How to fix a hacked Joomla site - Revver - Truveo Video Search
Article over here
How-to: Recover your Hacked Blog or Site - jonlee.ca
Some good read over here
Joomla! • View topic - Site Hacked And Cannot Login to Admin Area

Ill try that, lets hope that it works cause my server host just said he had problems with them earlier.

,Wiisper

Edit: i think i got the stite back, they didn't changed the database and i'm uploading my joomla backup. But there remains me one question, how the hell did the get in?

There are numerous ways to hack a website. Make sure that your account password is not obvious, and an alpha-numeric random password such as a&d2SK204*-ds{w

Make sure that Joomla has its own built in security. If you want to learn a little about hacking (and how to prevent it) check out Hack This Site!

~Lordbob