i may have been hacked.

[محروم.كوم]

i believe i may be hacked. some how my index.php files are being altered in site root and forum root. i replaced them and 15 minutes later they were changed again preventing my site from loading up. other php files work fine. like i can still search the site via new posts link. im not sure if this is someone hacking or a server issue. i notified my provider. but i wanted to see what vb.com's opinion was in the meantime. __DEFINE_LIKE_SHARE__