Strange code in all my forum files ?
 

<div>I just found a strange cade in my all forum files end with .php ?
how can this be ?
the code is:
Code:

and by the way my forum was not working and its give me white page with un understand langauge like this !!

<div class="bbcode_container"> Quote:
<div class="bbcode_quote printable"> ‹ےي}{sظµïكv•؟أ®ŒيDo„dK)اڈdخح$®±srR·n©hDڈپو@K '¹è~ٹ[‰®§1#Yƒ%»|$…ؤ_،ê|„û[ûرh`ةآ©ٌŒMسى÷^{­كzى½ï‎ىل