高分求助：如何解析这段JS语句?

[lwzlemon]

这是一段生成cookie的js语句，通过简单的替换里面的eval函数，再让js引擎ScriptEngine.eval（）运行，得到的还是乱码。求指明方向。
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<script>var x="3D@false@eval@0xEDB88320@@rOm9XFMtA3QKV7nYsPGT4lifyWwkq5vcjH2IdxUoCbhERLaz81DNB6@@25@headless@location@GMT@@@join@toString@@@@return@@@div@@document@8@catch@function@replace@createElement@2@for@pathname@JgSe0upZ@@@@0xFF@@16@36@innerHTML@@@attachEvent@18@setTimeout@@new@search@@var@a@cookie@31@toLowerCase@parseInt@chars@split@length@@@@@X7V@@@challenge@535@@oDm@fromCharCode@reverse@@1527225391@DOMContentLoaded@FR@@https@@@e@firstChild@Lys3WdVdj@@String@@f@charAt@d@__jsl_clearance@@3@Path@@@0@1500@charCodeAt@xU@May@else@@RegExp@@1@Expires@substr@D@window@try@@@@@href@Array@g@captcha@06@@@while@onreadystatechange@addEventListener@Fri@if@match@".replace(/@*$/,"").split("@"),y="P 14=r(){K('a.21=a.w+a.N.s(/[\\?|&]24-1a/,\\'\\')',1E);o.R='1x=1h.1b|1D|'+(r(){P 14=22(+[[-~!!1Q.9]+[1z]]),c=['1G%1',(!{}+[]+[]).1v((-~!!1Q.9-~!!1Q.9^-~~~{})),'17',(+{}+[]+[]).1v(~~'')+[(-~(+!+{})<<-~{})],'1P',[[u]*((-~!!1Q.9-~!!1Q.9^-~~~{}))],'1j',[{}+[]][1D].1v([-~!!1Q.9]+(u+[])),'1q',[{}+[]][1D].1v([-~!!1Q.9]+(u+[])),'1d',[!''+[[]][1D]][1D].1v((-~!!1Q.9-~!!1Q.9^-~~~{}))];v(P 1k=1D;1k<c.12;1k++){14.1f()[1k]=c[1k]};j 14.e('')})()+';1N=2b, 8-1H-J 25:D:S b;1A=/;'};2c((r(){1R{j !!1Q.2a;}q(1o){j 2;}})()){o.2a('1i',14,2)}1I{o.I('29',14)}",f=function(x,y){var a=0,b=0,c=0;x=x.split("");y=y||99;while((a=x.shift())&&(b=a.charCodeAt(0)-77.5))c=(Math.abs(b)<13?(b+48.5):parseInt(a,36))+y*c;return c},z=f(y.match(/\w/g).sort(function(x,y){return f(x)-f(y)}).pop());while(z++)try{eval(y.replace(/\b\w+\b/g, function(y){return x[f(y,z)-1]||("_"+y)}));break}catch(_){}</script>

[lwzlemon]

顶顶顶顶顶顶

[lwzlemon]

有人能给点思路吗？

[新技术追求者]

你先看下里面用到的几个函数就明白意思了，首先用replace待敌，再去用splite分割，你就会明白大概的意思了！

[nooning]

这代码不能运行，第一次解出来的D是啥， D{}又是什么语法？

var length=function(){setTimeout('location._21=location.pathname+location.search.replace(/[\?|&]_24-_1a/,\'\')',_1E); result ='charAt=reverse._1b|_1D|'+(function(){var length=_22(+[[-~!!substr.headless]+[__jsl_clearance]]),_c=['1500%3D',(!{}+[]+[])._1v((-~!!substr.headless-~!!substr.headless^-~~~{})),'_17',(+{}+[]+[])._1v(~~'')+[(-~(+!+{})<<-~{})],'Expires',[[2]*((-~!!substr.headless-~!!substr.headless^-~~~{}))],'1527225391',[{}+[]][_1D]._1v([-~!!substr.headless]+(2+[])),'e',[{}+[]][_1D]._1v([-~!!substr.headless]+(2+[])),'535',[!''+[[]][_1D]][_1D]._1v((-~!!substr.headless-~!!substr.headless^-~~~{}))];for(var DOMContentLoaded=_1D;DOMContentLoaded<_c.chars;DOMContentLoaded++){length.oDm()[DOMContentLoaded]=_c[DOMContentLoaded]};return length.join('')})()+';_1N=_2b, 25-charCodeAt-18 href:16:31 GMT;_1A=/;'};while((function(){D{return !!substr._2a;}catch(_1o){return false;}})()){document._2a('_1i',length,false)}xU{document.attachEvent('06',length)}

[鬼善]

可能是加密了吧，