医保服务平台 Webpack逆向

抓包，分析请求。发现数据被加密，搜索关键字

在每个拦截器的尾部断点，确定解密位置

SM4 为国密算法，其中e.data 为响应

调用了函数 u.b ，一直向上找到 u 的定义：

这种格式为 webpack 常见的打包格式，一直向上找到webpack加载器：

扣代码，删除环境检测函数

function o 是常见的webpack加载器格式，之后一大堆类似 o.e = xxx 的赋值语句。之后的 o(xxx) 函数大概率是检测环境的函数，注释后即可免去补环境

分析可知 u=n("7d92") 其中 u.a 为加密函数 u.b 为解密函数

类似的，使用关键字搜索，定位请求加密处

请求脚本

require('./loader')

// 用于验证 decrypt
var data = {
    "code": 0,
    "data": {
        "signData": "os+B1h8nCwkcAhtEs1vNvbe4YVBsEfS7Wvg6iZaTcbO3h5mjbiBjS23MosRjei9LOrKLbI7SHPs23ONSBm0zng==",
        "encType": "SM4",
        "data": {
            "encData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
        },
        "signType": "SM2",
        "appCode": "T98HPCGN5ZVVQBS8LZQNOAEXVI9GYHKQ",
        "version": "1.0.0",
        "timestamp": "1743061595233"
    },
    "message": "成功",
    "timestamp": "1743061595",
    "type": "success"
}

var { a: encrypt, b: decrypt } = window.__o("7d92")


var reqs = [];
for (let i = 1; i < 6; i++) {
    var page_num = i;
    var e = {
        "transformRequest": {},
        "transformResponse": {},
        "timeout": 30000,
        "xsrfCookieName": "XSRF-TOKEN",
        "xsrfHeaderName": "X-XSRF-TOKEN",
        "maxContentLength": -1,
        "headers": {
            "common": {
                "Accept": "application/json, text/plain, */*"
            },
            "delete": {},
            "get": {},
            "head": {},
            "post": {
                "Content-Type": "application/x-www-form-urlencoded"
            },
            "put": {
                "Content-Type": "application/x-www-form-urlencoded"
            },
            "patch": {
                "Content-Type": "application/x-www-form-urlencoded"
            },
            "Accept": "application/json",
            "Content-Type": "application/json",
            "channel": "web"
        },
        "withCredentials": false,
        "baseURL": "/ebus/fuwu/api",
        "method": "post",
        "url": "/nthl/api/CommQuery/queryRtalPhacBInfo",
        "data": {
            "addr": "",
            "regnCode": "110000",
            "medinsName": "",
            "businessLvOutMedOtp": "",
            "pageNum": page_num,
            "pageSize": 10,
            "queryDataSource": "es"
        }
    }
    var payload = encrypt(e);
    headers = {
        'Accept': 'application/json',
        'Accept-Language': 'zh,en-US;q=0.9,en;q=0.8',
        'Cache-Control': 'no-cache',
        'Connection': 'keep-alive',
        'Content-Type': 'application/json',
        'Origin': 'https://fuwu.nhsa.gov.cn',
        'Pragma': 'no-cache',
        'Referer': 'https://fuwu.nhsa.gov.cn/nationalHallSt/',
        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36',
        'X-Tingyun': 'c=B|4Nl_NnGbjwY;x=3f4196fef42f42a1',
        'channel': 'web',
        'contentType': 'application/x-www-form-urlencoded',
        'x-tif-nonce': payload['x-tif-nonce'],
        'x-tif-paasid': payload['x-tif-passid'],
        'x-tif-signature': payload['x-tif-signature'],
        'x-tif-timestamp': new Date().getTime(),
        'Cookie': 'acw_tc=3ccdc15a17430628956436210e4d4a4a68511fe80dfc42fb5c74b0b7d8dd25; yb_header_active=-1; amap_local=340100'
    };
    var req = fetch('https://fuwu.nhsa.gov.cn/ebus/fuwu/api/nthl/api/CommQuery/queryRtalPhacBInfo', {
        method: 'POST',
        headers: headers,
        body: payload['data'],
    });
    reqs.push(req);
}

Promise.all(reqs)
.then(resps => Promise.all(resps.map(resp => resp.json())))
.then(results => {
    results.forEach(result => {
        var data = decrypt('SM4', result);
        console.log(data['list']);
    })
})
.catch(err => {
    console.log(err);
});

其中 loader.js，直接复制

补环境

导出 o

注释环境检测

结果