【JavaScript 逆向】猿人学 web 第五题：乱码增强

案例目标

网址：第五题 js 混淆乱码增强 - 猿人学

本题目标：抓取全部 5 页直播间热度，计算前 5 名直播间热度的加和

常规 JavaScript 逆向思路

一般情况下，JavaScript 逆向分为三步：

寻找入口：逆向在大部分情况下就是找一些加密参数到底是怎么来的，关键逻辑可能写在某个关键的方法或者隐藏在某个关键的变量里，一个网站可能加载了很多 JavaScript 文件，如何从这么多的 JavaScript 文件的代码行中找到关键的位置，很重要；
调试分析：找到入口后，我们定位到某个参数可能是在某个方法中执行的了，那么里面的逻辑是怎么样的，调用了多少加密算法，经过了多少赋值变换，需要把整体思路整理清楚，以便于断点或反混淆工具等进行调试分析；
模拟执行：经过调试分析后，差不多弄清了逻辑，就需要对加密过程进行逻辑复现，以拿到最后我们想要的数据

接下来开始正式进行案例分析：

寻找入口

F12 打开开发者人员工具，刷新网页进行抓包，在 Network 中可以看到数据接口为 5?m=xxx，响应预览中可以看到当前页面各视频的热度数据：

响应负载中有两个请求参数 m 和 f，值皆为一串数字，现在还不知道其具体含义：

本题提示：本页 cookie 有效期仅有 50 秒钟，所以 cookie 是动态变化的，其中肯定有加密变化的参数，查看 cookie 内容：


cookies = {
    "Hm_lvt_c99546cf032aaa5a679230de9a95c7db": "1661925145",
    "tk": "32908618934039056",
    "sessionid": "XXXXXXXXXX",
    "Hm_lvt_9bcbda9cbf86757998a2339a0437208e": "1661925158",
    "Hm_lpvt_9bcbda9cbf86757998a2339a0437208e": "1661925158",
    "Hm_lpvt_c99546cf032aaa5a679230de9a95c7db": "1661926425",
    "m": "ccf558ed48325553e5722eda1a6396a6",
    "RM4hZBv0dDon443M": "ZgkOG30tdlJwtFEATbMdoGlnULtE4JYL5Z/yt6IiNO141Ts+Awkzavph6S1BvG6Qx1L/AOBjNbcRht65iEvusilk0J5jNyY/YGewrhLXophJ2dkIvf4hEbv1iaCXv/bhq0NAJzeH8x3vmVVZklcPNuOjCbnm1C3A1hzn2M0aIUsQ3P0NROyB5l/iMcz271DCPiQeHcUkxQwn342efQU4OGNAe+SUNlFMOhUBlKC94tk="
}

经过观察对比，m 和 RM4hZBv0dDon443M 参数的值是在动态变化的，接下来就需要找到这两个参数的具体加密位置。

调试分析

接口处点击 Initiator，跟栈进入 send：

点击 { } 格式化，send 处位于 jquery.min.js:formatted 文件的第 3801 行，在该行打断点调试分析，刷新网页会在该处断住：

向下跟栈到虚拟机 VMXXXXX 中，格式化后跳转到了第 1976 行，文件内容经过 OB 混淆：

在该行打下断点调试，_$UH[0x1a] 值为 setInterval，则此处即为定时器，0x1f4 值为 500，与本题提示中 50 s 变换一次 cookie 匹配：

ctrl + f 局部搜索加密参数，RM4hZBv0dDon443M 搜索不到被混淆了，搜索 m 的值会发现有几百个结果，这里参数都是被加密赋值的，所以直接搜索 m=，缩减到了只有六个结果：

在第 978 行我可看到以下代码，前面一连串字符串拼起来就是 RM4hZBv0dDon443M，所以此处即为该参数赋值加密的位置：

_$Fe：cookie，
_0x3d0f3f[_$Fe]：cookie 的值

_0x3d0f3f[_$Fe] = 'R' + 'M' + '4' + 'h' + 'Z' + 'B' + 'v' + '0' + 'd' + 'D' + 'o' + 'n' + '4' + '4' + '3' + 'M=' + _0x4e96b4['_$ss'] + ';\x20path=/';

在该行打下断点调试分析，_0x3d0f3f[_$Fe] 即 cookie 的值，这里是将 RM4hZBv0dDon443M 参数加密后赋值给 cookie，_0x4e96b4['_$ss'] 即加密值，所以想要知道关键的加密方法，需要进一步跟进到 _0x4e96b4 的定义位置，ctrl + f 局部搜索 _0x4e96b4，在第 221 行找到了其加密位置：

var _0x4e96b4 = window，即 _0x4e96b4 为 window 对象，那么只能搜索 ‘_$’ 看看怎么生成的，有一个结果，在第 1229 行：

'_$' + _$UH[0x348][0x1] + _$UH[0x353][0x1] 对应的 '_$ss' ，同时我们在上面能看到 mode、padding，这段代码部分如下：


_$Ww = _$Tk[_$UH[0x2db]][_$UH[0x2dc]][_$UH[0xff]](_0x4e96b4['_$pr'][_$UH[0x1f]]()),
_0x29dd83 = _$Tk['A' + _$UH[0x32d]][_$UH[0x337] + _$UH[0x336]](_$Ww, _0x4e96b4[_0xc77418('0x6', 'OCbs')], {
    'mode': _$Tk[_$UH[0x339] + _$UH[0x33a]][_$UH[0x2e5]],
    'padding': _$Tk[_$UH[0x33b]][_$UH[0x33c] + _$UH[0x33d]]
}),
_0x4e96b4['_$' + _$UH[0x348][0x1] + _$UH[0x353][0x1]] = _0x29dd83[_$UH[0x1f]]();

经过调试可以改写为：


_$Ww = _$Tk['enc']['utf-8']['parse'](_0x4e96b4['_$pr']['toString']()),
_0x29dd83 = _$Tk['AES'](_$Ww, _0x4e96b4['_$qF'], {
    'mode': _$Tk['mode']['ECB'],
    'padding': _$Tk['pad']['pkcs7']
}),
_0x4e96b4['_$ss'] = _0x29dd83['toString']();

从优化后的代码中可以看到，这里值是通过 AES 加密的，加密模块为 ECB，填充方式为 pkcs7，_0x4e96b4['_$qF'] 为秘钥，_0x4e96b4['_$pr'] 即 window['_$pr'] 为明文数组数据：

先来分析秘钥，ctrl + f 搜索 '_$qF'，搜索到了两个结果，在第 1444 行：

_0x4e96b4['_$qF'] = CryptoJS['enc']['Utf8'][_$UH[0xff]](_0x4e96b4['btoa'](_0x4e96b4['_$is'])['slice'](0x0, 0x10));

打断点调试优化：

_0x4e96b4['_$qF'] = CryptoJS['enc']['Utf8']['parse'](_0x4e96b4['btoa'](_0x4e96b4['_$is'])['slice'](0x0, 0x10));

(0x0, 0x10) 值为 16，秘钥为将 _0x4e96b4['_$is'] 的值经过 base64 编码后取前 16 位的结果：

一开始请求参数 m 和 f，定义在 5 文件中：

m: window._$is
f: window.$_zw[23]

所以 _0x4e96b4['_$is'] 的值及 m 的值，通过 node 改写：


var srcs = '1661936832793';
var value = Buffer.from(srcs).toString('base64').slice(0, 16);

RM4hZBv0dDon443M 参数整段加密改写如下：


var CryptoJS = require('crypto-js');
var pr = [
    "fcc46223494363e55ecdcf6089b315bb"
    ,"8cad38560777d3294ec95b097e48e047"
    ,"cdd3058695571a4fe8018423b006f260"
    ,"c1a21cb2a6cda710a74395973ad4e98b"
    ,"06301ae5a05fbaf499e6aec8ea042d46"
];
var params = '1661936832793';
var value = Buffer.from(params).toString('base64').slice(0, 16);
function RM4(){
    var srcs = CryptoJS.enc.Utf8.parse(pr.toString());
    var key = CryptoJS.enc.Utf8.parse(value);
    var encrypted = CryptoJS.AES.encrypt(srcs, key, {
        mode: CryptoJS.mode.ECB,
        padding: CryptoJS.pad.Pkcs7
    });
    return encrypted.toString();
}
 
console.log(RM4());

运行效果：

以上将值固定了，只能说是梳理出了大致逻辑，我们还需要知道 pr 数组具体是怎么生成的，局部搜索 _0x4e96b4['_$pr'] 跟进到数组生成位置，pr 总共有五个值，前四个值生成逻辑是在第 1717 行的 _0x474032(_$Wa) 这：

断点调试，生成第五个值时就会跳转到第 868 行_0x474032(_$yw) 这里：

第五个值的时间戳 _$yw 不仅是 pr 的元素，也是请求参数 m，同时还是 AES 加密的 key 参数，f 即 _$Wa，需跟进 _0x474032 定义位置找到加密方式，后文会讲，现在先找到另一个 cookie 加密参数 m，通过搜索 m= 同样可以找到 cookie 参数 m 的传值位置，在 VM 虚拟机的第 1716 行打断点调试分析：

0x3d0f3f[_$Fe] = 'm=' + _0x474032(_$Wa) + ';\x20path=/';

_$Fe：cookie，
_0x3d0f3f[_$Fe]：cookie 的值
_$Wa：1661928127000，可能为时间戳
_0x474032(_$Wa)：将 _$Wa 加密后的结果

_$Wa 第 1715 行定义，跟进到 _0x12eaf3 函数中，在第 275 行定义，根据控制台打印出来的结果可以确定 _$Wa 的值为时间戳：

_$Wa = Date['parse'](new Date())

ctrl + f 搜索 _$yw，定义在第 672 行，_$yw = _0x2d5f5b()[_$UH[0x1f]]()，跟进 _0x2d5f5b，跳转到第 278 行，返回值为 _0x35bb1d[_$UH[0xff]](new _0x35bb1d())，断点调试后优化：

_$yw = new Date()['valueOf']().toString()

_$Wa 跟 _$yw 一样同样经过 _0x474032 加密的，进一步跟进 _0x474032 的定义位置，看是什么加密方式，鼠标悬停其上，点击进入：

定义在该文件的第 455 行，返回值嵌套了几个三元表达式：


function _0x474032(_0x233f82, _0xe2ed33, _0x3229f9) {
    return _0xe2ed33 ? _0x3229f9 ? v(_0xe2ed33, _0x233f82) : y(_0xe2ed33, _0x233f82) : _0x3229f9 ? _0x41873d(_0x233f82) : _0x37614a(_0x233f82);
}

在第 456 行 return 处打断点调试， _0xe2ed33 和 _0x3229f9 皆为 undefined，_0x37614a(_0x233f82) 即为加密后的结果：

这里可以将代码简化：


function _0x474032(_0x233f82, _0xe2ed33, _0x3229f9) {
    return _0x37614a(_0x233f82);
}

_0x233f82 为传入的时间戳，所以进一步跟进到 _0x37614a 中，其定义在第 452 行，在第 453 行打断点调试，控制台中打印结果如下：

所以这里时间戳经过 _0x41873d 加密后再由 _0x499969 方法加密后得到了最后的加密结果，然后跟进到 _0x41873d 中，思路是这样的，就不接着往后面一个个描述了，这里边扣边对方法补全调用就行了，把需要的函数都加上，_$UH[ ] 中混淆的也改成对应的字符串，扣了挺久的，改写后的 JavaScript 文件如下：

JavaScript 代码


var _0x4e96b4 = window = {};
var _0x1171c8 = 0x67452301;
var _0x4dae05 = -0x10325477;
var _0x183a1d = -0x67452302;
var _0xcfa373 = 0x10325476;
var _0x30bc70 = String;
 
function _0x48d4b5(_0xabcf4d) {
    var _0x10430a = _0xabcf4d['length'];
    var _0x4c73dc, _0x324511 = new Array(_0x10430a - 0x1), _0x4a9df7 = _0xabcf4d['charCodeAt'](0x0) - 0x61;
    for (var _0x399f28 = 0x0, _0x3a7b53 = 0x1; _0x3a7b53 < _0x10430a; ++_0x3a7b53) {
        _0x4c73dc = _0xabcf4d['charCodeAt'](_0x3a7b53);
        if (_0x4c73dc >= 0x28 && _0x4c73dc < 0x5c) {
            _0x4c73dc += _0x4a9df7;
            if (_0x4c73dc >= 0x5c)
                _0x4c73dc = _0x4c73dc - 0x34;
        } else if (_0x4c73dc >= 0x61 && _0x4c73dc < 0x7f) {
            _0x4c73dc += _0x4a9df7;
            if (_0x4c73dc >= 0x7f)
                _0x4c73dc = _0x4c73dc - 0x1e;
        }
        _0x324511[_0x399f28++] = _0x4c73dc;
    }
    return _0x2b11f1['apply'](null, _0x324511);
}
 
function _0x48d200(_0x4b706e, _0x3c3a85, _0x111154, _0x311f9f, _0x5439cf, _0x38cac7, _0x26bd2e) {
    return _0xaaef84(_0x3c3a85 & _0x111154 | ~_0x3c3a85 & _0x311f9f, _0x4b706e, _0x3c3a85, _0x5439cf, _0x38cac7, _0x26bd2e);
}
 
function _0x12e4a8(_0x7542c8, _0x5eada0) {
    var _0x41f81f = (0xffff & _0x7542c8) + (0xffff & _0x5eada0);
    return (_0x7542c8 >> 0x10) + (_0x5eada0 >> 0x10) + (_0x41f81f >> 0x10) << 0x10 | 0xffff & _0x41f81f;
}
 
function _0x3634fc(_0x5803ba, _0x1ce5b2) {
    return _0x5803ba << _0x1ce5b2 | _0x5803ba >>> 0x20 - _0x1ce5b2;
}
 
function _0x3180ec(_0x401705, _0x240e6a, _0x56b131, _0x5a5c20, _0x1f2a72, _0x2bfc1, _0x19741a) {
    return _0xaaef84(_0x240e6a & _0x5a5c20 | _0x56b131 & ~_0x5a5c20, _0x401705, _0x240e6a, _0x1f2a72, _0x2bfc1, _0x19741a);
}
 
function _0x32032f(_0x520fdf, _0x13921d, _0x1af9d5, _0x4a2311, _0xb6d40a, _0x1d58da, _0x361df0) {
    return _0xaaef84(_0x13921d ^ _0x1af9d5 ^ _0x4a2311, _0x520fdf, _0x13921d, _0xb6d40a, _0x1d58da, _0x361df0);
}
 
function _0x4b459d(_0x8d8f2a, _0x406d34, _0x53e7d7, _0x26c827, _0xec41ea, _0x52dead, _0x3f66e7) {
    return _0xaaef84(_0x53e7d7 ^ (_0x406d34 | ~_0x26c827), _0x8d8f2a, _0x406d34, _0xec41ea, _0x52dead, _0x3f66e7);
}
 
function _0xaaef84(_0xaf3112, _0x2a165a, _0x532fb4, _0x10aa40, _0x41c4e7, _0x1cb4da) {
    return _0x12e4a8(_0x3634fc(_0x12e4a8(_0x12e4a8(_0x2a165a, _0xaf3112), _0x12e4a8(_0x10aa40, _0x1cb4da)), _0x41c4e7), _0x532fb4);
}
 
function _0x11a7a2(_0x193f00, _0x1cfe89) {
    _0x193f00[_0x1cfe89 >> 0x5] |= 0x80 << _0x1cfe89 % 0x20,
    _0x193f00[0xe + (_0x1cfe89 + 0x40 >>> 0x9 << 0x4)] = _0x1cfe89;
    // try {
    //     var _0x42fb36 = _0x4e96b4[_$UH[0x260]][_$UH[0x8]]['DONE'] * 0x4;
    // } catch (_0x1b1b35) {
    //     var _0x42fb36 = 0x1;
    // }
    var _0x42fb36 = 4 * 0x4;
    op = 26;
    b64pad = 1;
    // try {
    //     _0x4e96b4['$_z2'][0x0] = 'Q';
    // } catch (_0x4c574d) {
    //     try {
    //         op = _0x4e96b4['$_zw'][_$UH[0x6c]];
    //     } catch (_0x58af26) {
    //         var _0x3b7935 = 0x0;
    //         for (var _0x1badc3 = 0x0; _0x1badc3 < 0xf4240; _0x1badc3++) {
    //             _0x3b7935 = _0x3b7935 + _0x1badc3[_$UH[0x1f]]();
    //             history['pushState'](0x0, 0x0, _0x3b7935);
    //         }
    //     }
    //     if (op > 0x14) {
    //         eval('b64pad = _0x4e96b4[\'$_zw\'][9][\'length\'];');
    //     } else if (op < 0xa) {
    //         _0x4e96b4['$_zw'] = [0x1, 0x8, 0x2, 0x4, 0x17, 0x2d, 0x8, 0xf, 0x51, 0x44, 0xd, 0x48, 0x46];
    //     }
    // }
    var _0x1badc3, _0x38ca59, _0x431764, _0x43f1b4, _0x5722c0, _0x3e0c38 = _0x1171c8, _0xdb4d2c = _0x4dae05, _0x1724c5 = _0x183a1d, _0x257ec6 = _0xcfa373;
    // try {
    //     if (_0x4e96b4['_$6_']) {} else {
    //         _0x4e96b4['_$6_'] = 0x20dc5d57f;
    //     }
    // } catch (_0x15bf3f) {
    //     _0x4e96b4['_$6_'] = 0x2421603;
    // }
    window['_$6_'] = -389564586;
    window['_$tT'] = -660478335;
    window['_$Jy'] = -405537848;
    for (_0x1badc3 = 0x0; _0x1badc3 < _0x193f00['length']; _0x1badc3 += _0x42fb36)
        _0x38ca59 = _0x3e0c38,
            _0x431764 = _0xdb4d2c,
            _0x43f1b4 = _0x1724c5,
            _0x5722c0 = _0x257ec6,
            _0x3e0c38 = _0x48d200(_0x3e0c38, _0xdb4d2c, _0x1724c5, _0x257ec6, _0x193f00[_0x1badc3], 0x7, 0x7d60c),
            _0x257ec6 = _0x48d200(_0x257ec6, _0x3e0c38, _0xdb4d2c, _0x1724c5, _0x193f00[_0x1badc3 + 0x1], 0xc, _0x4e96b4['_$6_']),
            _0x1724c5 = _0x48d200(_0x1724c5, _0x257ec6, _0x3e0c38, _0xdb4d2c, _0x193f00[_0x1badc3 + 0x2], 0x11, 0x242070db),
            _0xdb4d2c = _0x48d200(_0xdb4d2c, _0x1724c5, _0x257ec6, _0x3e0c38, _0x193f00[_0x1badc3 + 0x3], 0x16, -0x3e423112),
            _0x3e0c38 = _0x48d200(_0x3e0c38, _0xdb4d2c, _0x1724c5, _0x257ec6, _0x193f00[_0x1badc3 + 0x4], 0x7, -0xa83f051),
            _0x257ec6 = _0x48d200(_0x257ec6, _0x3e0c38, _0xdb4d2c, _0x1724c5, _0x193f00[_0x1badc3 + 0x5], 0xc, 0x4787c62a),
            _0x1724c5 = _0x48d200(_0x1724c5, _0x257ec6, _0x3e0c38, _0xdb4d2c, _0x193f00[_0x1badc3 + 0x6], 0x11, -0x57cfb9ed),
            _0xdb4d2c = _0x48d200(_0xdb4d2c, _0x1724c5, _0x257ec6, _0x3e0c38, _0x193f00[_0x1badc3 + 0x7], 0x16, -0x2b96aff),
            _0x3e0c38 = _0x48d200(_0x3e0c38, _0xdb4d2c, _0x1724c5, _0x257ec6, _0x193f00[_0x1badc3 + 0x8], 0x7, 0x698098d8),
            _0x257ec6 = _0x48d200(_0x257ec6, _0x3e0c38, _0xdb4d2c, _0x1724c5, _0x193f00[_0x1badc3 + 0x9], 0xc, -0x74bb0851),
            _0x1724c5 = _0x48d200(_0x1724c5, _0x257ec6, _0x3e0c38, _0xdb4d2c, _0x193f00[_0x1badc3 + 0xa], 0x11, -0xa44f),
            _0xdb4d2c = _0x48d200(_0xdb4d2c, _0x1724c5, _0x257ec6, _0x3e0c38, _0x193f00[_0x1badc3 + 0xb], 0x16, -0x76a32842),
            _0x3e0c38 = _0x48d200(_0x3e0c38, _0xdb4d2c, _0x1724c5, _0x257ec6, _0x193f00[_0x1badc3 + 0xc], 0x7, 0x6b901122),
            _0x257ec6 = _0x48d200(_0x257ec6, _0x3e0c38, _0xdb4d2c, _0x1724c5, _0x193f00[_0x1badc3 + 0xd], 0xc, -0x2678e6d),
            _0x1724c5 = _0x48d200(_0x1724c5, _0x257ec6, _0x3e0c38, _0xdb4d2c, _0x193f00[_0x1badc3 + 0xe], 0x11, -0x5986bc72),
            _0xdb4d2c = _0x48d200(_0xdb4d2c, _0x1724c5, _0x257ec6, _0x3e0c38, _0x193f00[_0x1badc3 + 0xf], 0x16, 0x49b40821),
            _0x3e0c38 = _0x3180ec(_0x3e0c38, _0xdb4d2c, _0x1724c5, _0x257ec6, _0x193f00[_0x1badc3 + 0x1], 0x5, -0x9e1da9e),
            _0x257ec6 = _0x3180ec(_0x257ec6, _0x3e0c38, _0xdb4d2c, _0x1724c5, _0x193f00[_0x1badc3 + 0x6], 0x9, -0x3fbf4cc0),
            _0x1724c5 = _0x3180ec(_0x1724c5, _0x257ec6, _0x3e0c38, _0xdb4d2c, _0x193f00[_0x1badc3 + 0xb], 0xe, 0x265e5a51),
            _0xdb4d2c = _0x3180ec(_0xdb4d2c, _0x1724c5, _0x257ec6, _0x3e0c38, _0x193f00[_0x1badc3], 0x14, -0x16493856),
            _0x3e0c38 = _0x3180ec(_0x3e0c38, _0xdb4d2c, _0x1724c5, _0x257ec6, _0x193f00[_0x1badc3 + 0x5], 0x5, -0x29d0efa3),
            _0x257ec6 = _0x3180ec(_0x257ec6, _0x3e0c38, _0xdb4d2c, _0x1724c5, _0x193f00[_0x1badc3 + 0xa], 0x9, 0x2441453),
            _0x1724c5 = _0x3180ec(_0x1724c5, _0x257ec6, _0x3e0c38, _0xdb4d2c, _0x193f00[_0x1badc3 + 0xf], 0xe, _0x4e96b4['_$tT']),
            _0xdb4d2c = _0x3180ec(_0xdb4d2c, _0x1724c5, _0x257ec6, _0x3e0c38, _0x193f00[_0x1badc3 + 0x4], 0x14, _0x4e96b4['_$Jy']),
            _0x3e0c38 = _0x3180ec(_0x3e0c38, _0xdb4d2c, _0x1724c5, _0x257ec6, _0x193f00[_0x1badc3 + 0x9], 0x5, 0x21e1cde6),
            _0x257ec6 = _0x3180ec(_0x257ec6, _0x3e0c38, _0xdb4d2c, _0x1724c5, _0x193f00[_0x1badc3 + 0xe], 0x9, -0x3cc8aa0a),
            _0x1724c5 = _0x3180ec(_0x1724c5, _0x257ec6, _0x3e0c38, _0xdb4d2c, _0x193f00[_0x1badc3 + 0x3], 0xe, -0xb2af279),
            _0xdb4d2c = _0x3180ec(_0xdb4d2c, _0x1724c5, _0x257ec6, _0x3e0c38, _0x193f00[_0x1badc3 + 0x8], 0x14, 0x455a14ed),
            _0x3e0c38 = _0x3180ec(_0x3e0c38, _0xdb4d2c, _0x1724c5, _0x257ec6, _0x193f00[_0x1badc3 + 0xd], 0x5, -0x5caa8e7b),
            _0x257ec6 = _0x3180ec(_0x257ec6, _0x3e0c38, _0xdb4d2c, _0x1724c5, _0x193f00[_0x1badc3 + 0x2], 0x9, -0x3105c08),
            _0x1724c5 = _0x3180ec(_0x1724c5, _0x257ec6, _0x3e0c38, _0xdb4d2c, _0x193f00[_0x1badc3 + 0x7], 0xe, 0x676f02d9),
            _0xdb4d2c = _0x3180ec(_0xdb4d2c, _0x1724c5, _0x257ec6, _0x3e0c38, _0x193f00[_0x1badc3 + 0xc], 0x14, -0x72d5b376),
            _0x3e0c38 = _0x32032f(_0x3e0c38, _0xdb4d2c, _0x1724c5, _0x257ec6, _0x193f00[_0x1badc3 + 0x5], 0x4, -0x241282e),
            _0x257ec6 = _0x32032f(_0x257ec6, _0x3e0c38, _0xdb4d2c, _0x1724c5, _0x193f00[_0x1badc3 + 0x8], 0xb, -0x788e097f),
            _0x1724c5 = _0x32032f(_0x1724c5, _0x257ec6, _0x3e0c38, _0xdb4d2c, _0x193f00[_0x1badc3 + 0xb], 0x10, 0x6d9d6122),
            _0xdb4d2c = _0x32032f(_0xdb4d2c, _0x1724c5, _0x257ec6, _0x3e0c38, _0x193f00[_0x1badc3 + 0xe], 0x17, -0x21ac7f4),
            _0x3e0c38 = _0x32032f(_0x3e0c38, _0xdb4d2c, _0x1724c5, _0x257ec6, _0x193f00[_0x1badc3 + 0x1], 0x4, -0x5b4115bc * b64pad),
            _0x257ec6 = _0x32032f(_0x257ec6, _0x3e0c38, _0xdb4d2c, _0x1724c5, _0x193f00[_0x1badc3 + 0x4], 0xb, 0x4bdecfa9),
            _0x1724c5 = _0x32032f(_0x1724c5, _0x257ec6, _0x3e0c38, _0xdb4d2c, _0x193f00[_0x1badc3 + 0x7], 0x10, -0x944b4a0),
            _0xdb4d2c = _0x32032f(_0xdb4d2c, _0x1724c5, _0x257ec6, _0x3e0c38, _0x193f00[_0x1badc3 + 0xa], 0x17, -0x41404390),
            _0x3e0c38 = _0x32032f(_0x3e0c38, _0xdb4d2c, _0x1724c5, _0x257ec6, _0x193f00[_0x1badc3 + 0xd], 0x4, 0x289b7ec6),
            _0x257ec6 = _0x32032f(_0x257ec6, _0x3e0c38, _0xdb4d2c, _0x1724c5, _0x193f00[_0x1badc3], 0xb, -0x155ed806),
            _0x1724c5 = _0x32032f(_0x1724c5, _0x257ec6, _0x3e0c38, _0xdb4d2c, _0x193f00[_0x1badc3 + 0x3], 0x10, -0x2b10cf7b),
            _0xdb4d2c = _0x32032f(_0xdb4d2c, _0x1724c5, _0x257ec6, _0x3e0c38, _0x193f00[_0x1badc3 + 0x6], 0x17, 0x2d511fd9),
            _0x3e0c38 = _0x32032f(_0x3e0c38, _0xdb4d2c, _0x1724c5, _0x257ec6, _0x193f00[_0x1badc3 + 0x9], 0x4, -0x3d12017),
            _0x257ec6 = _0x32032f(_0x257ec6, _0x3e0c38, _0xdb4d2c, _0x1724c5, _0x193f00[_0x1badc3 + 0xc], 0xb, -0x1924661b),
            _0x1724c5 = _0x32032f(_0x1724c5, _0x257ec6, _0x3e0c38, _0xdb4d2c, _0x193f00[_0x1badc3 + 0xf], 0x10, 0x1fa27cf8),
            _0xdb4d2c = _0x32032f(_0xdb4d2c, _0x1724c5, _0x257ec6, _0x3e0c38, _0x193f00[_0x1badc3 + 0x2], 0x17, -0x3b53a99b),
            _0x3e0c38 = _0x4b459d(_0x3e0c38, _0xdb4d2c, _0x1724c5, _0x257ec6, _0x193f00[_0x1badc3], 0x6, -0xbd6ddbc),
            _0x257ec6 = _0x4b459d(_0x257ec6, _0x3e0c38, _0xdb4d2c, _0x1724c5, _0x193f00[_0x1badc3 + 0x7], 0xa, 0x432aff97),
            _0x1724c5 = _0x4b459d(_0x1724c5, _0x257ec6, _0x3e0c38, _0xdb4d2c, _0x193f00[_0x1badc3 + 0xe], 0xf, -0x546bdc59),
            _0xdb4d2c = _0x4b459d(_0xdb4d2c, _0x1724c5, _0x257ec6, _0x3e0c38, _0x193f00[_0x1badc3 + 0x5], 0x15, -0x36c5fc7),
            _0x3e0c38 = _0x4b459d(_0x3e0c38, _0xdb4d2c, _0x1724c5, _0x257ec6, _0x193f00[_0x1badc3 + 0xc], 0x6, 0x655b59c3),
            _0x257ec6 = _0x4b459d(_0x257ec6, _0x3e0c38, _0xdb4d2c, _0x1724c5, _0x193f00[_0x1badc3 + 0x3], 0xa, -0x70ef89ee),
            _0x1724c5 = _0x4b459d(_0x1724c5, _0x257ec6, _0x3e0c38, _0xdb4d2c, _0x193f00[_0x1badc3 + 0xa], 0xf, -0x644f153),
            _0xdb4d2c = _0x4b459d(_0xdb4d2c, _0x1724c5, _0x257ec6, _0x3e0c38, _0x193f00[_0x1badc3 + 0x1], 0x15, -0x7a7ba22f),
            _0x3e0c38 = _0x4b459d(_0x3e0c38, _0xdb4d2c, _0x1724c5, _0x257ec6, _0x193f00[_0x1badc3 + 0x8], 0x6, 0x6fa87e4f),
            _0x257ec6 = _0x4b459d(_0x257ec6, _0x3e0c38, _0xdb4d2c, _0x1724c5, _0x193f00[_0x1badc3 + 0xf], 0xa, -0x1d31920),
            _0x1724c5 = _0x4b459d(_0x1724c5, _0x257ec6, _0x3e0c38, _0xdb4d2c, _0x193f00[_0x1badc3 + 0x6], 0xf, -0x5cfebcec),
            _0xdb4d2c = _0x4b459d(_0xdb4d2c, _0x1724c5, _0x257ec6, _0x3e0c38, _0x193f00[_0x1badc3 + 0xd], 0x15, 0x4e0811a1),
            _0x3e0c38 = _0x4b459d(_0x3e0c38, _0xdb4d2c, _0x1724c5, _0x257ec6, _0x193f00[_0x1badc3 + 0x4], 0x6, -0x8ac817e),
            _0x257ec6 = _0x4b459d(_0x257ec6, _0x3e0c38, _0xdb4d2c, _0x1724c5, _0x193f00[_0x1badc3 + 0xb], 0xa, -1120211379),
            _0x1724c5 = _0x4b459d(_0x1724c5, _0x257ec6, _0x3e0c38, _0xdb4d2c, _0x193f00[_0x1badc3 + 0x2], 0xf, 0x2ad7d2bb),
            _0xdb4d2c = _0x4b459d(_0xdb4d2c, _0x1724c5, _0x257ec6, _0x3e0c38, _0x193f00[_0x1badc3 + 0x9], 0x15, -0x14792c01),
            _0x3e0c38 = _0x12e4a8(_0x3e0c38, _0x38ca59),
            _0xdb4d2c = _0x12e4a8(_0xdb4d2c, _0x431764),
            _0x1724c5 = _0x12e4a8(_0x1724c5, _0x43f1b4),
            _0x257ec6 = _0x12e4a8(_0x257ec6, _0x5722c0);
    return [_0x3e0c38, _0xdb4d2c, _0x1724c5, _0x257ec6];
}
 
function _0x12b47d(_0x149183) {
    var _0xabbcb3, _0x1145c3 = '', _0x4fce58 = 0x20 * _0x149183['length'];
    for (_0xabbcb3 = 0x0; _0xabbcb3 < _0x4fce58; _0xabbcb3 += 0x8)
        _0x1145c3 += _0x30bc70['fromCharCode'](_0x149183[_0xabbcb3 >> 0x5] >>> _0xabbcb3 % 0x20 & 0xff);
    return _0x1145c3;
}
 
function _0x35f5f2(_0x243853) {
    var _0x139b8b, _0xa791a1 = [];
        for (_0xa791a1[(_0x243853['length'] >> 0x2) - 0x1] = void 0x0,
        _0x139b8b = 0x0; _0x139b8b < _0xa791a1['length']; _0x139b8b += 0x1)
            _0xa791a1[_0x139b8b] = 0x0;
        var _0x41a533 = 0x8 * _0x243853['length'];
        for (_0x139b8b = 0x0; _0x139b8b < _0x41a533; _0x139b8b += 0x8)
            _0xa791a1[_0x139b8b >> 0x5] |= (0xff & _0x243853['charCodeAt'](_0x139b8b / 0x8)) << _0x139b8b % 0x20;
        return _0xa791a1;
    }
 
function _0x2b8a17(_0x36f847) {
    return unescape(encodeURIComponent(_0x36f847));
}
 
function _0x1ee7ec(_0x206333) {
    return _0x12b47d(_0x11a7a2(_0x35f5f2(_0x206333), 8 * 13));
}
 
function _0x499969(_0x82fe7e) {
    var _0x5bdda4, _0x322a73, _0xd0b5cd = '0123456789abcdef', _0x21f411 = '';
    for (_0x322a73 = 0x0; _0x322a73 < _0x82fe7e['length']; _0x322a73 += 0x1)
        _0x5bdda4 = _0x82fe7e['charCodeAt'](_0x322a73),
            _0x21f411 += _0xd0b5cd['charAt'](_0x5bdda4 >>> 0x4 & 0xf) + _0xd0b5cd['charAt'](0xf & _0x5bdda4);
    return _0x21f411;
}
 
function _0x41873d(_0x5a6962) {
    return _0x1ee7ec(_0x2b8a17(_0x5a6962));
}
 
function _0x37614a(_0x32e7c1) {
    return _0x499969(_0x41873d(_0x32e7c1));
}
 
function _0x474032(_0x233f82, _0xe2ed33, _0x3229f9) {
    return _0xe2ed33 ? _0x3229f9 ? v(_0xe2ed33, _0x233f82) : y(_0xe2ed33, _0x233f82) : _0x3229f9 ? _0x41873d(_0x233f82) : _0x37614a(_0x233f82);
}
 
var CryptoJS = require('crypto-js');
 
function RM4(_$yw, pr){
    var value = Buffer.from(_$yw).toString('base64').slice(0, 16);
    var srcs = CryptoJS.enc.Utf8.parse(pr);
    var key = CryptoJS.enc.Utf8.parse(value);
    var encrypted = CryptoJS.AES.encrypt(srcs, key, {
        mode: CryptoJS.mode.ECB,
        padding: CryptoJS.pad.Pkcs7
    });
    return encrypted.toString();
}
 
function getCookie() {
    pr = [];
    for (i = 1; i < 5; i++) {
        var _$Wa = Date['parse'](new Date()).toString();
        pr['push'](_0x474032(_$Wa))
    }
    _$yw = new Date()['valueOf']().toString();
    pr['push'](_0x474032(_$yw));
    cookie_m = pr[4];
    cookie_RM4 = RM4(_$yw, pr['toString']());
    return{
        "cookie_m": cookie_m,
        "cookie_RM4": cookie_RM4,
        "m": _$yw,
        "f": _$Wa
    }
}
 
// console.log(getCookie());

运行结果：

python 代码

sessionid 要改为自己的：


import execjs
import requests
import re
 
headers = {
    "user-agent": "yuanrenxue,project",
}
 
 
def main():
    heat_value_total = []
    for page_num in range(1, 6):
 
        with open('yrx5.js', 'r', encoding='utf-8') as f:
            encrypt = f.read()
            encrypt_params = execjs.compile(encrypt).call('getCookie')
 
        cookies = {
            "sessionid": " your sessionid ",
            "m": encrypt_params['cookie_m'],
            "RM4hZBv0dDon443M": encrypt_params['cookie_RM4']
        }
 
        params = {
            "m": encrypt_params['m'],
            "f": encrypt_params['f']
        }
        url = "https://match.yuanrenxue.com/api/match/5?page=%s" % page_num
 
        response = requests.get(url, headers=headers, cookies=cookies, params=params)
 
        for i in range(10):
            value = response.json()['data'][i]
            heat_value = re.findall(r"'value': (.*?)}", str(value))[0]
            heat_value_total.append(heat_value)
 
    heat_value_total.sort(reverse=True)
 
    top_three_sum = 0
    for i in range(5):
        top_three_sum += int(heat_value_total[i])
 
    print(top_three_sum)
 
 
if __name__ == '__main__':
    main()

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原文地址：https://blog.csdn.net/Yy_Rose/article/details/126622701