somebody has hacked my blog: http://www.tantrayogi.com.ar
and now in the index page apears a gif image with some turkish words and this message: Hacked By Badw0rm
Seems that the hacker managed to block my access to the Logs directory in the server, and obviously has changed my WP password so I cant access to WordPress.
I don't know what to do in order to remove that screen and take some security guidelines.
I apreciate any help!