Could these theme have been compromised? WordPress theme: htxp://remont-40.ru/wordpress/wp-content/themes/remont-40.ru/
Because there I get a Status: HTTP/1.1 500 Internal Server Error
Request
HTTP/1.1 404 Not Found
Date: Sun, 03 Nov 2013 00:27:54 GMT
Content-Type: text/html; charset=koi8-r
Connection: close
Server: nginx/1.4.2

polonus