Android Spider XX兔 Wechat Cookie 校验注册案例（二）

EXI-小洲

发布于 2023-03-01 11:23:49

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发布于 2023-03-01 11:23:49

文章被收录于专栏：Spider篇Spider篇

声明

此次案例只为学习交流使用，抓包内容、敏感网址、数据接口均已做脱敏处理，切勿用于其他非法用途；

文章目录

前言

该文章使用了Charles、夜神模拟器；

主要编程语言：Python，部分涉及到：JavaScript；

Charles - 夜神模拟器证书安装App抓包：https://cloud.tencent.com/developer/article/2208208

二、任务说明

1、使用postman工具，模拟发送验证码请求；

2、使用postman工具，模拟发送注册请求；

三、App抓包分析

1、发送验证码请求：aHR0cHM6Ly93d3cueWlkaWFuYWkuY2MvYXBpL3Ntc19jb2RlL3NlbmQuaHRtbA==

https://img-blog.csdnimg.cn/43826908cc5841caac3a28a8e5558926.png

2、发送验证码请求分析，请求头校验参数校验：cookie、UserAgent；

phone是手机号参数，api_token是加密参数，下面是加密明文，JS加密代码我会放在文章后面；

var date= new Date().format("yyyy-MM-dd");
var api_token = md5.hex_md5('api/SmsCode/send'+date+'yiling6670238160ravntyoneapp7926')

3、发送注册请求：aHR0cHM6Ly93d3cueWlkaWFuYWkuY2MvbW9iaWxlL3JlZ2lzdGVyL2luZGV4Lmh0bWw=

https://img-blog.csdnimg.cn/156caa91cb244021b84da44291209d75.png

4、发送注册请求分析，请求头校验参数校验：cookie、UserAgent；

四、还原JS加密

1、Date类

Date.prototype.format = function(fmt) {
     var o = {
        "M+" : this.getMonth()+1,                 //月份
        "d+" : this.getDate(),                    //日
        "h+" : this.getHours(),                   //小时
        "m+" : this.getMinutes(),                 //分
        "s+" : this.getSeconds(),                 //秒
        "q+" : Math.floor((this.getMonth()+3)/3), //季度
        "S"  : this.getMilliseconds()             //毫秒
    };
    if(/(y+)/.test(fmt)) {
            fmt=fmt.replace(RegExp.$1, (this.getFullYear()+"").substr(4 - RegExp.$1.length));
    }
     for(var k in o) {
        if(new RegExp("("+ k +")").test(fmt)){
             fmt = fmt.replace(RegExp.$1, (RegExp.$1.length==1) ? (o[k]) : (("00"+ o[k]).substr((""+ o[k]).length)));
         }
     }
    return fmt;
}

2、MD5类

var md5 = function() {
    var hexcase = 0;
    var b64pad = "";
    var chrsz = 8;
    function md5_vm_test() {
        return hex_md5("abc") == "900150983cd24fb0d6963f7d28e17f72";
    }

    function core_md5(x, len) {
        x[len >> 5] |= 0x80 << ((len) % 32);
        x[(((len + 64) >>> 9) << 4) + 14] = len;
        var a = 1732584193;
        var b = -271733879;
        var c = -1732584194;
        var d = 271733878;
        for (var i = 0; i < x.length; i += 16) {
            var olda = a;
            var oldb = b;
            var oldc = c;
            var oldd = d;
            a = md5_ff(a, b, c, d, x[i + 0], 7, -680876936);
            d = md5_ff(d, a, b, c, x[i + 1], 12, -389564586);
            c = md5_ff(c, d, a, b, x[i + 2], 17, 606105819);
            b = md5_ff(b, c, d, a, x[i + 3], 22, -1044525330);
            a = md5_ff(a, b, c, d, x[i + 4], 7, -176418897);
            d = md5_ff(d, a, b, c, x[i + 5], 12, 1200080426);
            c = md5_ff(c, d, a, b, x[i + 6], 17, -1473231341);
            b = md5_ff(b, c, d, a, x[i + 7], 22, -45705983);
            a = md5_ff(a, b, c, d, x[i + 8], 7, 1770035416);
            d = md5_ff(d, a, b, c, x[i + 9], 12, -1958414417);
            c = md5_ff(c, d, a, b, x[i + 10], 17, -42063);
            b = md5_ff(b, c, d, a, x[i + 11], 22, -1990404162);
            a = md5_ff(a, b, c, d, x[i + 12], 7, 1804603682);
            d = md5_ff(d, a, b, c, x[i + 13], 12, -40341101);
            c = md5_ff(c, d, a, b, x[i + 14], 17, -1502002290);
            b = md5_ff(b, c, d, a, x[i + 15], 22, 1236535329);
            a = md5_gg(a, b, c, d, x[i + 1], 5, -165796510);
            d = md5_gg(d, a, b, c, x[i + 6], 9, -1069501632);
            c = md5_gg(c, d, a, b, x[i + 11], 14, 643717713);
            b = md5_gg(b, c, d, a, x[i + 0], 20, -373897302);
            a = md5_gg(a, b, c, d, x[i + 5], 5, -701558691);
            d = md5_gg(d, a, b, c, x[i + 10], 9, 38016083);
            c = md5_gg(c, d, a, b, x[i + 15], 14, -660478335);
            b = md5_gg(b, c, d, a, x[i + 4], 20, -405537848);
            a = md5_gg(a, b, c, d, x[i + 9], 5, 568446438);
            d = md5_gg(d, a, b, c, x[i + 14], 9, -1019803690);
            c = md5_gg(c, d, a, b, x[i + 3], 14, -187363961);
            b = md5_gg(b, c, d, a, x[i + 8], 20, 1163531501);
            a = md5_gg(a, b, c, d, x[i + 13], 5, -1444681467);
            d = md5_gg(d, a, b, c, x[i + 2], 9, -51403784);
            c = md5_gg(c, d, a, b, x[i + 7], 14, 1735328473);
            b = md5_gg(b, c, d, a, x[i + 12], 20, -1926607734);
            a = md5_hh(a, b, c, d, x[i + 5], 4, -378558);
            d = md5_hh(d, a, b, c, x[i + 8], 11, -2022574463);
            c = md5_hh(c, d, a, b, x[i + 11], 16, 1839030562);
            b = md5_hh(b, c, d, a, x[i + 14], 23, -35309556);
            a = md5_hh(a, b, c, d, x[i + 1], 4, -1530992060);
            d = md5_hh(d, a, b, c, x[i + 4], 11, 1272893353);
            c = md5_hh(c, d, a, b, x[i + 7], 16, -155497632);
            b = md5_hh(b, c, d, a, x[i + 10], 23, -1094730640);
            a = md5_hh(a, b, c, d, x[i + 13], 4, 681279174);
            d = md5_hh(d, a, b, c, x[i + 0], 11, -358537222);
            c = md5_hh(c, d, a, b, x[i + 3], 16, -722521979);
            b = md5_hh(b, c, d, a, x[i + 6], 23, 76029189);
            a = md5_hh(a, b, c, d, x[i + 9], 4, -640364487);
            d = md5_hh(d, a, b, c, x[i + 12], 11, -421815835);
            c = md5_hh(c, d, a, b, x[i + 15], 16, 530742520);
            b = md5_hh(b, c, d, a, x[i + 2], 23, -995338651);
            a = md5_ii(a, b, c, d, x[i + 0], 6, -198630844);
            d = md5_ii(d, a, b, c, x[i + 7], 10, 1126891415);
            c = md5_ii(c, d, a, b, x[i + 14], 15, -1416354905);
            b = md5_ii(b, c, d, a, x[i + 5], 21, -57434055);
            a = md5_ii(a, b, c, d, x[i + 12], 6, 1700485571);
            d = md5_ii(d, a, b, c, x[i + 3], 10, -1894986606);
            c = md5_ii(c, d, a, b, x[i + 10], 15, -1051523);
            b = md5_ii(b, c, d, a, x[i + 1], 21, -2054922799);
            a = md5_ii(a, b, c, d, x[i + 8], 6, 1873313359);
            d = md5_ii(d, a, b, c, x[i + 15], 10, -30611744);
            c = md5_ii(c, d, a, b, x[i + 6], 15, -1560198380);
            b = md5_ii(b, c, d, a, x[i + 13], 21, 1309151649);
            a = md5_ii(a, b, c, d, x[i + 4], 6, -145523070);
            d = md5_ii(d, a, b, c, x[i + 11], 10, -1120210379);
            c = md5_ii(c, d, a, b, x[i + 2], 15, 718787259);
            b = md5_ii(b, c, d, a, x[i + 9], 21, -343485551);
            a = safe_add(a, olda);
            b = safe_add(b, oldb);
            c = safe_add(c, oldc);
            d = safe_add(d, oldd);
        }
        return Array(a, b, c, d);
    }
    function md5_cmn(q, a, b, x, s, t) {
        return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s), b);
    }
    function md5_ff(a, b, c, d, x, s, t) {
        return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t);
    }
    function md5_gg(a, b, c, d, x, s, t) {
        return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t);
    }
    function md5_hh(a, b, c, d, x, s, t) {
        return md5_cmn(b ^ c ^ d, a, b, x, s, t);
    }
    function md5_ii(a, b, c, d, x, s, t) {
        return md5_cmn(c ^ (b | (~d)), a, b, x, s, t);
    }
    function core_hmac_md5(key, data) {
        var bkey = str2binl(key);
        if (bkey.length > 16) bkey = core_md5(bkey, key.length * chrsz);

        var ipad = Array(16),
            opad = Array(16);
        for (var i = 0; i < 16; i++) {
            ipad[i] = bkey[i] ^ 0x36363636;
            opad[i] = bkey[i] ^ 0x5C5C5C5C;
        }

        var hash = core_md5(ipad.concat(str2binl(data)), 512 + data.length * chrsz);
        return core_md5(opad.concat(hash), 512 + 128);
    }
    function safe_add(x, y) {
        var lsw = (x & 0xFFFF) + (y & 0xFFFF);
        var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
        return (msw << 16) | (lsw & 0xFFFF);
    }
    function bit_rol(num, cnt) {
        return (num << cnt) | (num >>> (32 - cnt));
    }
    function str2binl(str) {
        var bin = Array();
        var mask = (1 << chrsz) - 1;
        for (var i = 0; i < str.length * chrsz; i += chrsz) bin[i >> 5] |= (str.charCodeAt(i / chrsz) & mask) << (i % 32);
        return bin;
    }
    function binl2str(bin) {
        var str = "";
        var mask = (1 << chrsz) - 1;
        for (var i = 0; i < bin.length * 32; i += chrsz) str += String.fromCharCode((bin[i >> 5] >>> (i % 32)) & mask);
        return str;
    }
    function binl2hex(binarray) {
        var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
        var str = "";
        for (var i = 0; i < binarray.length * 4; i++) {
            str += hex_tab.charAt((binarray[i >> 2] >> ((i % 4) * 8 + 4)) & 0xF) + hex_tab.charAt((binarray[i >> 2] >> ((i % 4) * 8)) & 0xF);
        }
        return str;
    }
    function binl2b64(binarray) {
        var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
        var str = "";
        for (var i = 0; i < binarray.length * 4; i += 3) {
            var triplet = (((binarray[i >> 2] >> 8 * (i % 4)) & 0xFF) << 16) | (((binarray[i + 1 >> 2] >> 8 * ((i + 1) % 4)) & 0xFF) << 8) | ((binarray[i + 2 >> 2] >> 8 * ((i + 2) % 4)) & 0xFF);
            for (var j = 0; j < 4; j++) {
                if (i * 8 + j * 6 > binarray.length * 32) str += b64pad;
                else str += tab.charAt((triplet >> 6 * (3 - j)) & 0x3F);
            }
        }
        return str;
    }
    return {
        hex_md5: function(s) {
            return binl2hex(core_md5(str2binl(s), s.length * chrsz));
        },
        b64_md5: function(s) {
            return binl2b64(core_md5(str2binl(s), s.length * chrsz));
        },
        str_md5: function(s) {
            return binl2str(core_md5(str2binl(s), s.length * chrsz));
        },
        hex_hmac_md5: function(key, data) {
            return binl2hex(core_hmac_md5(key, data));
        },
        b64_hmac_md5: function(key, data) {
            return binl2b64(core_hmac_md5(key, data));
        },
        str_hmac_md5: function(key, data) {
            return binl2str(core_hmac_md5(key, data));
        }
    }
}();

3、组合调用还原 api_token 参数

function get_apiToken(){
    var date= new Date().format("yyyy-MM-dd");
    var api_token = md5.hex_md5('api/SmsCode/send'+date+'yiling6670238160ravntyoneapp7926')
    return api_token
}
console.log(get_apiToken())

4、execjs模块调用JS代码

import execjs
with open(file='encode.js', mode='r', encoding='utf-8') as fis:
     js_code = fis.read()  # 读取JS代码文件
js_obj = execjs.compile(js_code)  # 激将JS代码传入
js_obj.call('function', 'params')  # 调用JS的函数, 参数1：函数名、参数2：该函数所需要的参数

五、问题遗留

1、如何获取Cookie

手动抓包复制后台返回的cookie添加至headers中，一般微信不切换设备登录cookie是不会发生变化的；

set-cookie的请求：aHR0cHM6Ly93d3cueWlkaWFuYWkuY2MvbW9iaWxlL1NoYXJlL2luZGV4P2ludml0ZXI9eHh4eA==

关于set-cookie的请求，可能进行了OAuth授权，仅是更换 user-agent不起作用，使用工具模拟发包一直返回请在微信客户端打开链接；

2、问题：请在微信客户端打开链接

微信UserAgent：Mozilla/5.0 (iPhone; CPU iPhone OS 5_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Mobile/9B176 MicroMessenger/4.3.2

微信UserAgent：Mozilla/5.0 (Linux; U; Android 2.3.6; zh-cn; GT-S5660 Build/GINGERBREAD) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1 MicroMessenger/4.5.255

解决方案1：尝试将user-agent里面的MicroMessenger修改成 micromessage；

3、留言

如果有人可以通过校验，自动拿到cookie，请指教本人(有偿)，谢谢！

注意

本文章中所有内容仅供学习交流，抓包内容、敏感网址、数据接口均已做脱敏处理，严禁用于商业用途和非法用途，否则由此产生的一切后果均与作者无关，若有侵权，请联系我立即删除！

本文章未经许可禁止转载，禁止任何修改后二次传播，擅自使用本文讲解的技术而导致的任何意外，作者均不负责，若有侵权，请在公众号【程序员小洲】联系作者立即删除！

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原始发表：2023-02-20，如有侵权请联系 cloudcommunity@tencent.com 删除

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