常见的混淆反爬措施：学习笔记与要点整理

sojson混淆

https://www.sojson.com/jsobfuscator.html

未混淆的代码：

console.log(" hi jack");

混淆之后的代码：

var encode_version = 'sojson.v5', bteax = '__0x846a6',  __0x846a6=['EcKowo4Yfw==','w7fDr2wEUg==','KwgLP8Om','wo8eKcKMeQ==','w6AMAcKhwrDCtXY=','OcK+wqw=','54my5p+t5Y+97766w55z5L+j5a2j5p6R5b2B56mV77+n6LyW6Ky75pej5o6z5ouO5Lia55iE5bW85L2i'];(function(_0x5e9976,_0x4f844c){var _0x560038=function(_0x55cc79){while(--_0x55cc79){_0x5e9976['push'](_0x5e9976['shift']());}};_0x560038(++_0x4f844c);}(__0x846a6,0x14d));var _0x2e2f=function(_0x4006c7,_0x5002dc){_0x4006c7=_0x4006c7-0x0;var _0x35bf6b=__0x846a6[_0x4006c7];if(_0x2e2f['initialized']===undefined){(function(){var _0x42ba13=typeof window!=='undefined'?window:typeof process==='object'&&typeof require==='function'&&typeof global==='object'?global:this;var _0x786960='ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';_0x42ba13['atob']||(_0x42ba13['atob']=function(_0x4fdcdf){var _0x11216a=String(_0x4fdcdf)['replace'](/=+$/,'');for(var _0x1293c7=0x0,_0x2f43b9,_0x14a91b,_0x4eca59=0x0,_0x807f0f='';_0x14a91b=_0x11216a['charAt'](_0x4eca59++);~_0x14a91b&&(_0x2f43b9=_0x1293c7%0x4?_0x2f43b9*0x40+_0x14a91b:_0x14a91b,_0x1293c7++%0x4)?_0x807f0f+=String['fromCharCode'](0xff&_0x2f43b9>>(-0x2*_0x1293c7&0x6)):0x0){_0x14a91b=_0x786960['indexOf'](_0x14a91b);}return _0x807f0f;});}());var _0x11317c=function(_0x4ae5a9,_0x244e96){var _0x19abd2=[],_0x316817=0x0,_0x337c30,_0x51f6fc='',_0x2e1d01='';_0x4ae5a9=atob(_0x4ae5a9);for(var _0x155526=0x0,_0x10959d=_0x4ae5a9['length'];_0x155526<_0x10959d;_0x155526++){_0x2e1d01+='%'+('00'+_0x4ae5a9['charCodeAt'](_0x155526)['toString'](0x10))['slice'](-0x2);}_0x4ae5a9=decodeURIComponent(_0x2e1d01);for(var _0x3bb377=0x0;_0x3bb377<0x100;_0x3bb377++){_0x19abd2[_0x3bb377]=_0x3bb377;}for(_0x3bb377=0x0;_0x3bb377<0x100;_0x3bb377++){_0x316817=(_0x316817+_0x19abd2[_0x3bb377]+_0x244e96['charCodeAt'](_0x3bb377%_0x244e96['length']))%0x100;_0x337c30=_0x19abd2[_0x3bb377];_0x19abd2[_0x3bb377]=_0x19abd2[_0x316817];_0x19abd2[_0x316817]=_0x337c30;}_0x3bb377=0x0;_0x316817=0x0;for(var _0x129acb=0x0;_0x129acb<_0x4ae5a9['length'];_0x129acb++){_0x3bb377=(_0x3bb377+0x1)%0x100;_0x316817=(_0x316817+_0x19abd2[_0x3bb377])%0x100;_0x337c30=_0x19abd2[_0x3bb377];_0x19abd2[_0x3bb377]=_0x19abd2[_0x316817];_0x19abd2[_0x316817]=_0x337c30;_0x51f6fc+=String['fromCharCode'](_0x4ae5a9['charCodeAt'](_0x129acb)^_0x19abd2[(_0x19abd2[_0x3bb377]+_0x19abd2[_0x316817])%0x100]);}return _0x51f6fc;};_0x2e2f['rc4']=_0x11317c;_0x2e2f['data']={};_0x2e2f['initialized']=!![];}var _0x33781b=_0x2e2f['data'][_0x4006c7];if(_0x33781b===undefined){if(_0x2e2f['once']===undefined){_0x2e2f['once']=!![];}_0x35bf6b=_0x2e2f['rc4'](_0x35bf6b,_0x5002dc);_0x2e2f['data'][_0x4006c7]=_0x35bf6b;}else{_0x35bf6b=_0x33781b;}return _0x35bf6b;};console['log'](_0x2e2f('0x0','%C$L'));;(function(_0x46ba4e,_0x455fb0,_0x3f0f92){var _0x5c4ab4={'MdVnn':_0x2e2f('0x1','@^DM'),'Upspt':function _0x26dc97(_0x3947d4,_0x23ceb9){return _0x3947d4!==_0x23ceb9;},'AIUhm':'undefined','TnDsF':'sojson.v5','QONCf':function _0x5d53bb(_0x3d3c24,_0x2f92ee){return _0x3d3c24+_0x2f92ee;},'rMAWU':_0x2e2f('0x2','RHT#'),'XAHkM':'删除版本号，js会定期弹窗'};_0x3f0f92='al';try{_0x3f0f92+=_0x5c4ab4[_0x2e2f('0x3','@^DM')];_0x455fb0=encode_version;if(!(_0x5c4ab4['Upspt'](typeof _0x455fb0,_0x5c4ab4[_0x2e2f('0x4','4aKX')])&&_0x455fb0===_0x5c4ab4[_0x2e2f('0x5','azOV')])){_0x46ba4e[_0x3f0f92](_0x5c4ab4[_0x2e2f('0x6','8iGz')]('删除',_0x5c4ab4['rMAWU']));}}catch(_0x3905a3){_0x46ba4e[_0x3f0f92](_0x5c4ab4['XAHkM']);}}(window));;encode_version = 'sojson.v5';

jjencode

https://utf-8.jp/public/jjencode.html

未混淆：

console.log(" hi jack");

混淆：

_=~[];_={___:++_,$$$$:(![]+"")[_],__$:++_,$_$_:(![]+"")[_],_$_:++_,$_$$:({}+"")[_],$$_$:(_[_]+"")[_],_$$:++_,$$$_:(!""+"")[_],$__:++_,$_$:++_,$$__:({}+"")[_],$$_:++_,$$$:++_,$___:++_,$__$:++_};_.$_=(_.$_=_+"")[_.$_$]+(_._$=_.$_[_.__$])+(_.$$=(_.$+"")[_.__$])+((!_)+"")[_._$$]+(_.__=_.$_[_.$$_])+(_.$=(!""+"")[_.__$])+(_._=(!""+"")[_._$_])+_.$_[_.$_$]+_.__+_._$+_.$;_.$$=_.$+(!""+"")[_._$$]+_.__+_._+_.$+_.$$;_.$=(_.___)[_.$_][_.$_];_.$(_.$(_.$$+"\""+_.$$__+_._$+"\\"+_.__$+_.$_$+_.$$_+"\\"+_.__$+_.$$_+_._$$+_._$+(![]+"")[_._$_]+_.$$$_+"."+(![]+"")[_._$_]+_._$+"\\"+_.__$+_.$__+_.$$$+"(\\\"\\"+_.$__+_.___+"\\"+_.__$+_.$_$+_.___+"\\"+_.__$+_.$_$+_.__$+"\\"+_.$__+_.___+"\\"+_.__$+_.$_$+_._$_+_.$_$_+_.$$__+"\\"+_.__$+_.$_$+_._$$+"\\\");"+"\"")())();

jsfuck

https://www.bugku.com/tools/jsfuck/#

未混淆：

console.log(" hi jack");

混淆：

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aaendoced

https://utf-8.jp/public/aaencode.html

未混淆：

console.log(" hi jack");

混淆：

ﾟωﾟﾉ= /｀ｍ´）ﾉ ~┻━┻   //*´∇｀*/ ['_']; 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)+ (ﾟｰﾟ)+ (o^_^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)+ ((ﾟｰﾟ) + (ﾟΘﾟ))+ ((o^_^o) +(o^_^o))+ (ﾟДﾟ)[ﾟεﾟ]+(ﾟΘﾟ)+ ((o^_^o) +(o^_^o))+ (o^_^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)+ ((ﾟｰﾟ) + (ﾟΘﾟ))+ (ﾟｰﾟ)+ (ﾟДﾟ)[ﾟεﾟ]+(ﾟΘﾟ)+ (ﾟｰﾟ)+ ((ﾟｰﾟ) + (ﾟΘﾟ))+ (ﾟДﾟ)[ﾟεﾟ]+((ﾟｰﾟ) + (ﾟΘﾟ))+ ((o^_^o) +(o^_^o))+ (ﾟДﾟ)[ﾟεﾟ]+(ﾟΘﾟ)+ ((ﾟｰﾟ) + (ﾟΘﾟ))+ (ﾟｰﾟ)+ (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)+ ((ﾟｰﾟ) + (o^_^o))+ (ﾟДﾟ)[ﾟεﾟ]+((ﾟｰﾟ) + (ﾟΘﾟ))+ (c^_^o)+ (ﾟДﾟ)[ﾟεﾟ]+(ﾟｰﾟ)+ ((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) + (ﾟΘﾟ))+ (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]+(ﾟｰﾟ)+ (c^_^o)+ (ﾟДﾟ)[ﾟεﾟ]+(ﾟΘﾟ)+ ((ﾟｰﾟ) + (ﾟΘﾟ))+ ((o^_^o) - (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)+ (o^_^o)+ (ﾟДﾟ)[ﾟεﾟ]+(ﾟΘﾟ)+ ((ﾟｰﾟ) + (ﾟΘﾟ))+ (o^_^o)+ (ﾟДﾟ)[ﾟεﾟ]+(ﾟｰﾟ)+ ((o^_^o) - (ﾟΘﾟ))+ (ﾟДﾟ)[ﾟεﾟ]+((ﾟｰﾟ) + (ﾟΘﾟ))+ (ﾟΘﾟ)+ (ﾟДﾟ)[ﾟεﾟ]+((ﾟｰﾟ) + (o^_^o))+ (o^_^o)+ (ﾟДﾟ)[ﾟoﾟ]) (ﾟΘﾟ)) ('_');

packer

http://dean.edwards.name/packer/

未混淆：

console.log(" hi jack");

混淆：

eval(function(p,a,c,k,e,r){e=String;if(!''.replace(/^/,String)){while(c--)r[c]=k[c]||c;k=[function(e){return r[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}('0.1(" 2 3");',4,4,'console|log|hi|jack'.split('|'),0,{}))

AST混淆

var UglifyJS = require("uglify-js");
// 定义用于混淆的 JavaScript 代码
var code = `
var ins = 1 + 2, ss = "abc";
function pack(a, b){
    return a + b + ss;
};
var pp = pack(ins, 6);
console.log(pp);
`
var astree = UglifyJS.parse(code); // 解析代码并生成语法树

var trans = new UglifyJS.TreeTransformer(function (node) {
    if (node instanceof UglifyJS.AST_String || node instanceof UglifyJS.AST_Number) {// 过滤出 String 对象和 Number 对象   
            // 混淆逻辑
            // 过滤出 String 对象和 Number 对象    
            var charhex = charTo16(node.value);
            node.value = charhex;
            return node; // 更新语法树
        }
    });

// 数字、字母转16进制
function charTo16(s) {
    var result = '';
    for (var i=0; i<s.toString().length; i++) {
            // 用“&#x”作为“\x”的替代，后期换回
            var res = "&#xsfsd2a1~~" + s.toString().charCodeAt(i).toString(16);
            result += res;
        
    }
    return result;
};



astree.transform(trans);  //遍历AST树
var ncode = astree.print_to_string(); //从AST还原成字符串
console.log(ncode)
console.log(ncode.replace(/&#x/g, "\\x"));

obfuscator混淆

https://obfuscator.io/