混淆的原理：就是把原本清晰的代码故意搞得花里胡哨    
    
    
，让局外人看不懂；

混淆的目的：让逆向者很难理解代码的意图   


     


     


  ，无法读懂混淆之后的代码；

一般混淆的对象为 1  
    
    
  、混淆常量的值和名称 2

     


     


     
、混淆逻辑



 




 




 
，混淆代码的执行流程

JavaScript支持多个国家的语言

1 




 




 




、可以使用其他国家的语言来写JS代码并且正常运行； 2  

   

   

 、可以将写好的JS代码   

   

   

，使用其他国家的语言进行转译后拿来运行； 3

     

     

     、目的：是让逆向者很难理解代码的意图

一  




  




  




、资源推荐

Web Spider案例 AAEncode加密 练习：https://blog.csdn.net/EXIxiaozhou/article/details/129304630

Web Spider案例 JJEncode加密 练习：https://blog.csdn.net/EXIxiaozhou/article/details/129256968

Web Spider案例 JSFuck加密 练习：https://blog.csdn.net/EXIxiaozhou/article/details/129315912

二  


  


  


、EVAL & constructor

eval介绍：V8引擎定义的方法    

     

     

 ，具有执行JS代码的功能




  




  




  ，一般用于隐藏真实代码  


  


  


，嵌套很多个eval；

案例一：eval(“function xx(){return 10} xx()    
    
    
”) # 可以将JS代码写成文本类型；

案例二嵌套eval：eval(“eval(‘function xx(){return 10} xx()’)   


     


     


  ”) # 一般会将文本代码进行加密；

案例二拓展：eval(atob(‘ZXZhbCgiZnVuY3Rpb24geHgoKXtyZXR1cm4gMTB9IHh4KCkiKQ==’))# 将文本代码进行base64编码；

通过constructor运行JS代：[0].constructor.constructor("return 1+3")()

通过constructor运行JS代：[0][constructor][constructor]("return 1+3")()

三
     
     
     、AA混淆

在线加密网址：https://www.sojson.com/aaencode.html

明文：var xiaozhou = "1024"

下面是AA混淆后的代码 ﾟωﾟﾉ = /｀ｍ´）ﾉ ~┻━┻ //*´∇｀sojson.com*/ [_]; o = (ﾟｰﾟ) = _ = 3; c = (ﾟΘﾟ) = (ﾟｰﾟ) - (ﾟｰﾟ); (ﾟДﾟ) = (ﾟΘﾟ) = (o _ o) / (o _ o); (ﾟДﾟ) = { ﾟΘﾟ: _, ﾟωﾟﾉ: ((ﾟωﾟﾉ == 3) + _)[ﾟΘﾟ], ﾟｰﾟﾉ: (ﾟωﾟﾉ + _)[o _ o - (ﾟΘﾟ)], ﾟДﾟﾉ: ((ﾟｰﾟ == 3) + _)[ﾟｰﾟ] }; (ﾟДﾟ)[ﾟΘﾟ] = ((ﾟωﾟﾉ == 3) + _)[c _ o]; (ﾟДﾟ)[c] = ((ﾟДﾟ) + _)[(ﾟｰﾟ) + (ﾟｰﾟ) - (ﾟΘﾟ)]; (ﾟДﾟ)[o] = ((ﾟДﾟ) + _)[ﾟΘﾟ]; (ﾟoﾟ) = (ﾟДﾟ)[c] + (ﾟДﾟ)[o] + (ﾟωﾟﾉ + _)[ﾟΘﾟ] + ((ﾟωﾟﾉ == 3) + _)[ﾟｰﾟ] + ((ﾟДﾟ) + _)[(ﾟｰﾟ) + (ﾟｰﾟ)] + ((ﾟｰﾟ == 3) + _)[ﾟΘﾟ] + ((ﾟｰﾟ == 3) + _)[(ﾟｰﾟ) - (ﾟΘﾟ)] + (ﾟДﾟ)[c] + ((ﾟДﾟ) + _)[(ﾟｰﾟ) + (ﾟｰﾟ)] + (ﾟДﾟ)[o] + ((ﾟｰﾟ == 3) + _)[ﾟΘﾟ]; (ﾟДﾟ)[_] = (o _ o)[ﾟoﾟ][ﾟoﾟ]; (ﾟεﾟ) = ((ﾟｰﾟ == 3) + _)[ﾟΘﾟ] + (ﾟДﾟ).ﾟДﾟﾉ + ((ﾟДﾟ) + _)[(ﾟｰﾟ) + (ﾟｰﾟ)] + ((ﾟｰﾟ == 3) + _)[o _ o - ﾟΘﾟ] + ((ﾟｰﾟ == 3) + _)[ﾟΘﾟ] + (ﾟωﾟﾉ + _)[ﾟΘﾟ]; (ﾟｰﾟ) += (ﾟΘﾟ); (ﾟДﾟ)[ﾟεﾟ] = \\; (ﾟДﾟ).ﾟΘﾟﾉ = (ﾟДﾟ + ﾟｰﾟ)[o _ o - (ﾟΘﾟ)]; (oﾟｰﾟo) = (ﾟωﾟﾉ + _)[c _ o]; (ﾟДﾟ)[ﾟoﾟ] = \"; (ﾟДﾟ)[_]((ﾟДﾟ)[_](ﾟεﾟ + (ﾟДﾟ)[ﾟoﾟ] + (ﾟДﾟ)[ﾟεﾟ] + (ﾟΘﾟ) + ((o _ o) + (o _ o)) + ((o _ o) + (o _ o)) + (ﾟДﾟ)[ﾟεﾟ] + (ﾟΘﾟ) + (ﾟｰﾟ) + (ﾟΘﾟ) + (ﾟДﾟ)[ﾟεﾟ] + (ﾟΘﾟ) + ((o _ o) + (o _ o)) + ((o _ o) - (ﾟΘﾟ)) + (ﾟДﾟ)[ﾟεﾟ] + (ﾟｰﾟ) + (c _ o) + (ﾟДﾟ)[ﾟεﾟ] + (ﾟΘﾟ) + ((ﾟｰﾟ) + (o _ o)) + (c _ o) + (ﾟДﾟ)[ﾟεﾟ] + (ﾟΘﾟ) + ((ﾟｰﾟ) + (ﾟΘﾟ)) + (ﾟΘﾟ) + (ﾟДﾟ)[ﾟεﾟ] + (ﾟΘﾟ) + (ﾟｰﾟ) + (ﾟΘﾟ) + (ﾟДﾟ)[ﾟεﾟ] + (ﾟΘﾟ) + ((ﾟｰﾟ) + (ﾟΘﾟ)) + ((ﾟｰﾟ) + (o _ o)) + (ﾟДﾟ)[ﾟεﾟ] + (ﾟΘﾟ) + ((ﾟｰﾟ) + (o _ o)) + ((o _ o) - (ﾟΘﾟ)) + (ﾟДﾟ)[ﾟεﾟ] + (ﾟΘﾟ) + ((ﾟｰﾟ) + (ﾟΘﾟ)) + (c _ o) + (ﾟДﾟ)[ﾟεﾟ] + (ﾟΘﾟ) + ((ﾟｰﾟ) + (ﾟΘﾟ)) + ((ﾟｰﾟ) + (o _ o)) + (ﾟДﾟ)[ﾟεﾟ] + (ﾟΘﾟ) + ((o _ o) + (o _ o)) + ((ﾟｰﾟ) + (ﾟΘﾟ)) + (ﾟДﾟ)[ﾟεﾟ] + (ﾟｰﾟ) + (c _ o) + (ﾟДﾟ)[ﾟεﾟ] + ((ﾟｰﾟ) + (o _ o)) + ((ﾟｰﾟ) + (ﾟΘﾟ)) + (ﾟДﾟ)[ﾟεﾟ] + (ﾟｰﾟ) + (c _ o) + (ﾟДﾟ)[ﾟεﾟ] + (ﾟｰﾟ) + ((o _ o) - (ﾟΘﾟ)) + (ﾟДﾟ)[ﾟεﾟ] + ((o _ o) + (o _ o)) + (ﾟΘﾟ) + (ﾟДﾟ)[ﾟεﾟ] + ((o _ o) + (o _ o)) + (c _ o) + (ﾟДﾟ)[ﾟεﾟ] + ((o _ o) + (o _ o)) + ((o _ o) - (ﾟΘﾟ)) + (ﾟДﾟ)[ﾟεﾟ] + ((o _ o) + (o _ o)) + (ﾟｰﾟ) + (ﾟДﾟ)[ﾟεﾟ] + (ﾟｰﾟ) + ((o _ o) - (ﾟΘﾟ)) + (ﾟДﾟ)[ﾟoﾟ])(ﾟΘﾟ))((ﾟΘﾟ) + (ﾟДﾟ)[ﾟεﾟ] + ((ﾟｰﾟ) + (ﾟΘﾟ)) + (ﾟΘﾟ) + (ﾟДﾟ)[ﾟoﾟ]);

四
   




   




   



、JJ混淆

在线加密网址：https://www.sojson.com/aaencode.html

加密明文：console.log("xiaozhou")

下面是AA混淆后的代码 sojson = ~[]; /*sojson.com*/ sojson = { ___: ++sojson, /*sojson.com*/ $$$$: (![] + "")[sojson], __$: ++sojson, $_$_: (![] + "")[sojson], _$_: ++sojson, $_$$: ({} + "")[sojson], $$_$: (sojson[sojson] + "")[sojson], _$$: ++sojson, $$$_: (!"" + "")[sojson], $__: ++sojson, $_$: ++sojson, $$__: ({} + "")[sojson], $$_: ++sojson, $$$: ++sojson, $___: ++sojson, $__$: ++sojson }; sojson.$_ = (sojson.$_ = sojson + "")[sojson.$_$] + (sojson._$ = sojson.$_[sojson.__$]) + (sojson.$$/*sojson.com*/ = (sojson.$ + "")[sojson.__$]) + ((!sojson) + "")[sojson._$$] + (sojson.__ = sojson.$_[sojson.$$_]) + (sojson.$ = (!"" + "")[sojson.__$]) + (sojson._ = (!"" + "")[sojson._$_]) + sojson.$_[sojson.$_$] + sojson.__ + sojson._$ + sojson.$; /*sojson.com*/ sojson.$$ = sojson.$ + (!"" + "")[sojson._$$] + sojson.__ + sojson._ + sojson.$ + sojson.$$/*sojson.com*/ ; sojson.$ = (sojson.___)[sojson.$_][sojson.$_]; sojson.$(sojson.$(sojson.$$ + "\"" + sojson.$$__ + sojson._$ + "\\" + sojson.__$ + sojson.$_$ + sojson.$$_ + "\\" + sojson.__$ + sojson.$$_ + sojson._$$ + sojson._$ + (![] + "")[sojson._$_] + sojson.$$$_ + "." + (![] + "")[sojson._$_] + sojson._$ + "\\" + sojson.__$ + sojson.$__ + sojson.$$$ + "(\\\"\\" + sojson.__$ + sojson.$$$ + sojson.___ + "\\" + sojson.__$ + sojson.$_$ + sojson.__$ + sojson.$_$_ + sojson._$ + "\\" + sojson.__$ + sojson.$$$ + sojson._$_ + "\\" + sojson.__$ + sojson.$_$ + sojson.___ + sojson._$ + sojson._ + "\\\")" + "\"")())(sojson = { ___: ++sojson, $$$$: (![] + "")[sojson] });

在28行处拼成了console.log(“xiaozhou



 




 




 
”)     
     
     
，并且调用执行；

五 



 



 



、JSFUCK

在线加密网址：https://www.sojson.com/aaencode.html

加密明文：console.log("3+3")

下面是AA混淆后的代码 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