分析

地址->https://qimingp*.cn/fino*a/project/

 捕获ajax请求，发现返回的数据是加密的，如下图：

打开搜索，定位如下：

 经过查找，定位到11058行，如下：

 分析代码，发现首先走decode函数，然后s函数，如下图：

 到此，分析完毕。

代码：

js：

function decode(t) {var u = function (t) {this.message = t};var l = function (t) {throw new u(t)}, c = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/", f = /[\t\n\f\r ]/gvar e = (t = String(t).replace(/[\t\n\f\r ]/g, "")).length;e % 4 == 0 && (e = (t = t.replace(/==?$/, "")).length),(e % 4 == 1 || /[^+a-zA-Z0-9/]/.test(t)) && l("Invalid character: the string to be decoded is not correctly encoded.");for (var n, r, i = 0, o = "", a = -1; ++a < e;)r = c.indexOf(t.charAt(a)),n = i % 4 ? 64 * n + r : r,i++ % 4 && (o += String.fromCharCode(255 & n >> (-2 * i & 6)));return o
}function s(t, e, i, n, a, s) {var o, c, r, l, u, d, h, p, f, v, m, g, b, y,_ = new Array(16843776, 0, 65536, 16843780, 16842756, 66564, 4, 65536, 1024, 16843776, 16843780, 1024, 16778244, 16842756, 16777216, 4, 1028, 16778240, 16778240, 66560, 66560, 16842752, 16842752, 16778244, 65540, 16777220, 16777220, 65540, 0, 1028, 66564, 16777216, 65536, 16843780, 4, 16842752, 16843776, 16777216, 16777216, 1024, 16842756, 65536, 66560, 16777220, 1024, 4, 16778244, 66564, 16843780, 65540, 16842752, 16778244, 16777220, 1028, 66564, 16843776, 1028, 16778240, 16778240, 0, 65540, 66560, 0, 16842756),C = new Array(-2146402272, -2147450880, 32768, 1081376, 1048576, 32, -2146435040, -2147450848, -2147483616, -2146402272, -2146402304, -2147483648, -2147450880, 1048576, 32, -2146435040, 1081344, 1048608, -2147450848, 0, -2147483648, 32768, 1081376, -2146435072, 1048608, -2147483616, 0, 1081344, 32800, -2146402304, -2146435072, 32800, 0, 1081376, -2146435040, 1048576, -2147450848, -2146435072, -2146402304, 32768, -2146435072, -2147450880, 32, -2146402272, 1081376, 32, 32768, -2147483648, 32800, -2146402304, 1048576, -2147483616, 1048608, -2147450848, -2147483616, 1048608, 1081344, 0, -2147450880, 32800, -2147483648, -2146435040, -2146402272, 1081344),w = new Array(520, 134349312, 0, 134348808, 134218240, 0, 131592, 134218240, 131080, 134217736, 134217736, 131072, 134349320, 131080, 134348800, 520, 134217728, 8, 134349312, 512, 131584, 134348800, 134348808, 131592, 134218248, 131584, 131072, 134218248, 8, 134349320, 512, 134217728, 134349312, 134217728, 131080, 520, 131072, 134349312, 134218240, 0, 512, 131080, 134349320, 134218240, 134217736, 512, 0, 134348808, 134218248, 131072, 134217728, 134349320, 8, 131592, 131584, 134217736, 134348800, 134218248, 520, 134348800, 131592, 8, 134348808, 131584),x = new Array(8396801, 8321, 8321, 128, 8396928, 8388737, 8388609, 8193, 0, 8396800, 8396800, 8396929, 129, 0, 8388736, 8388609, 1, 8192, 8388608, 8396801, 128, 8388608, 8193, 8320, 8388737, 1, 8320, 8388736, 8192, 8396928, 8396929, 129, 8388736, 8388609, 8396800, 8396929, 129, 0, 0, 8396800, 8320, 8388736, 8388737, 1, 8396801, 8321, 8321, 128, 8396929, 129, 1, 8192, 8388609, 8193, 8396928, 8388737, 8193, 8320, 8388608, 8396801, 128, 8388608, 8192, 8396928),k = new Array(256, 34078976, 34078720, 1107296512, 524288, 256, 1073741824, 34078720, 1074266368, 524288, 33554688, 1074266368, 1107296512, 1107820544, 524544, 1073741824, 33554432, 1074266112, 1074266112, 0, 1073742080, 1107820800, 1107820800, 33554688, 1107820544, 1073742080, 0, 1107296256, 34078976, 33554432, 1107296256, 524544, 524288, 1107296512, 256, 33554432, 1073741824, 34078720, 1107296512, 1074266368, 33554688, 1073741824, 1107820544, 34078976, 1074266368, 256, 33554432, 1107820544, 1107820800, 524544, 1107296256, 1107820800, 34078720, 0, 1074266112, 1107296256, 524544, 33554688, 1073742080, 524288, 0, 1074266112, 34078976, 1073742080),T = new Array(536870928, 541065216, 16384, 541081616, 541065216, 16, 541081616, 4194304, 536887296, 4210704, 4194304, 536870928, 4194320, 536887296, 536870912, 16400, 0, 4194320, 536887312, 16384, 4210688, 536887312, 16, 541065232, 541065232, 0, 4210704, 541081600, 16400, 4210688, 541081600, 536870912, 536887296, 16, 541065232, 4210688, 541081616, 4194304, 16400, 536870928, 4194304, 536887296, 536870912, 16400, 536870928, 541081616, 4210688, 541065216, 4210704, 541081600, 0, 541065232, 16, 16384, 541065216, 4210704, 16384, 4194320, 536887312, 0, 541081600, 536870912, 4194320, 536887312),A = new Array(2097152, 69206018, 67110914, 0, 2048, 67110914, 2099202, 69208064, 69208066, 2097152, 0, 67108866, 2, 67108864, 69206018, 2050, 67110912, 2099202, 2097154, 67110912, 67108866, 69206016, 69208064, 2097154, 69206016, 2048, 2050, 69208066, 2099200, 2, 67108864, 2099200, 67108864, 2099200, 2097152, 67110914, 67110914, 69206018, 69206018, 2, 2097154, 67108864, 67110912, 2097152, 69208064, 2050, 2099202, 69208064, 2050, 67108866, 69208066, 69206016, 2099200, 0, 2, 69208066, 0, 2099202, 69206016, 2048, 67108866, 67110912, 2048, 2097154),L = new Array(268439616, 4096, 262144, 268701760, 268435456, 268439616, 64, 268435456, 262208, 268697600, 268701760, 266240, 268701696, 266304, 4096, 64, 268697600, 268435520, 268439552, 4160, 266240, 262208, 268697664, 268701696, 4160, 0, 0, 268697664, 268435520, 268439552, 266304, 262144, 266304, 262144, 268701696, 4096, 64, 268697664, 4096, 266304, 268439552, 64, 268435520, 268697600, 268697664, 268435456, 262144, 268439616, 0, 268701760, 262208, 268435520, 268697600, 268439552, 268439616, 0, 268701760, 266240, 266240, 4160, 4160, 262208, 268435456, 268701696),z = function (t) {for (var e, i, n, a = new Array(0, 4, 536870912, 536870916, 65536, 65540, 536936448, 536936452, 512, 516, 536871424, 536871428, 66048, 66052, 536936960, 536936964), s = new Array(0, 1, 1048576, 1048577, 67108864, 67108865, 68157440, 68157441, 256, 257, 1048832, 1048833, 67109120, 67109121, 68157696, 68157697), o = new Array(0, 8, 2048, 2056, 16777216, 16777224, 16779264, 16779272, 0, 8, 2048, 2056, 16777216, 16777224, 16779264, 16779272), c = new Array(0, 2097152, 134217728, 136314880, 8192, 2105344, 134225920, 136323072, 131072, 2228224, 134348800, 136445952, 139264, 2236416, 134356992, 136454144), r = new Array(0, 262144, 16, 262160, 0, 262144, 16, 262160, 4096, 266240, 4112, 266256, 4096, 266240, 4112, 266256), l = new Array(0, 1024, 32, 1056, 0, 1024, 32, 1056, 33554432, 33555456, 33554464, 33555488, 33554432, 33555456, 33554464, 33555488), u = new Array(0, 268435456, 524288, 268959744, 2, 268435458, 524290, 268959746, 0, 268435456, 524288, 268959744, 2, 268435458, 524290, 268959746), d = new Array(0, 65536, 2048, 67584, 536870912, 536936448, 536872960, 536938496, 131072, 196608, 133120, 198656, 537001984, 537067520, 537004032, 537069568), h = new Array(0, 262144, 0, 262144, 2, 262146, 2, 262146, 33554432, 33816576, 33554432, 33816576, 33554434, 33816578, 33554434, 33816578), p = new Array(0, 268435456, 8, 268435464, 0, 268435456, 8, 268435464, 1024, 268436480, 1032, 268436488, 1024, 268436480, 1032, 268436488), f = new Array(0, 32, 0, 32, 1048576, 1048608, 1048576, 1048608, 8192, 8224, 8192, 8224, 1056768, 1056800, 1056768, 1056800), v = new Array(0, 16777216, 512, 16777728, 2097152, 18874368, 2097664, 18874880, 67108864, 83886080, 67109376, 83886592, 69206016, 85983232, 69206528, 85983744), m = new Array(0, 4096, 134217728, 134221824, 524288, 528384, 134742016, 134746112, 16, 4112, 134217744, 134221840, 524304, 528400, 134742032, 134746128), g = new Array(0, 4, 256, 260, 0, 4, 256, 260, 1, 5, 257, 261, 1, 5, 257, 261), b = t.length > 8 ? 3 : 1, y = new Array(32 * b), _ = new Array(0, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0), C = 0, w = 0, x = 0; x < b; x++) {var k = t.charCodeAt(C++) << 24 | t.charCodeAt(C++) << 16 | t.charCodeAt(C++) << 8 | t.charCodeAt(C++), T = t.charCodeAt(C++) << 24 | t.charCodeAt(C++) << 16 | t.charCodeAt(C++) << 8 | t.charCodeAt(C++);k ^= (n = 252645135 & (k >>> 4 ^ T)) << 4,k ^= n = 65535 & ((T ^= n) >>> -16 ^ k),k ^= (n = 858993459 & (k >>> 2 ^ (T ^= n << -16))) << 2,k ^= n = 65535 & ((T ^= n) >>> -16 ^ k),k ^= (n = 1431655765 & (k >>> 1 ^ (T ^= n << -16))) << 1,k ^= n = 16711935 & ((T ^= n) >>> 8 ^ k),n = (k ^= (n = 1431655765 & (k >>> 1 ^ (T ^= n << 8))) << 1) << 8 | (T ^= n) >>> 20 & 240,k = T << 24 | T << 8 & 16711680 | T >>> 8 & 65280 | T >>> 24 & 240,T = n;for (var A = 0; A < _.length; A++)_[A] ? (k = k << 2 | k >>> 26,T = T << 2 | T >>> 26) : (k = k << 1 | k >>> 27,T = T << 1 | T >>> 27),T &= -15,e = a[(k &= -15) >>> 28] | s[k >>> 24 & 15] | o[k >>> 20 & 15] | c[k >>> 16 & 15] | r[k >>> 12 & 15] | l[k >>> 8 & 15] | u[k >>> 4 & 15],i = d[T >>> 28] | h[T >>> 24 & 15] | p[T >>> 20 & 15] | f[T >>> 16 & 15] | v[T >>> 12 & 15] | m[T >>> 8 & 15] | g[T >>> 4 & 15],n = 65535 & (i >>> 16 ^ e),y[w++] = e ^ n,y[w++] = i ^ n << 16}return y}(t), S = 0, F = e.length, j = 0, I = 32 == z.length ? 3 : 9;p = 3 == I ? i ? new Array(0, 32, 2) : new Array(30, -2, -2) : i ? new Array(0, 32, 2, 62, 30, -2, 64, 96, 2) : new Array(94, 62, -2, 32, 64, 2, 30, -2, -2),2 == s ? e += "        " : 1 == s ? i && (r = 8 - F % 8,e += String.fromCharCode(r, r, r, r, r, r, r, r),8 === r && (F += 8)) : s || (e += "\0\0\0\0\0\0\0\0");var B = "", O = "";for (1 == n && (f = a.charCodeAt(S++) << 24 | a.charCodeAt(S++) << 16 | a.charCodeAt(S++) << 8 | a.charCodeAt(S++),m = a.charCodeAt(S++) << 24 | a.charCodeAt(S++) << 16 | a.charCodeAt(S++) << 8 | a.charCodeAt(S++),S = 0); S < F;) {for (d = e.charCodeAt(S++) << 24 | e.charCodeAt(S++) << 16 | e.charCodeAt(S++) << 8 | e.charCodeAt(S++),h = e.charCodeAt(S++) << 24 | e.charCodeAt(S++) << 16 | e.charCodeAt(S++) << 8 | e.charCodeAt(S++),1 == n && (i ? (d ^= f,h ^= m) : (v = f,g = m,f = d,m = h)),d ^= (r = 252645135 & (d >>> 4 ^ h)) << 4,d ^= (r = 65535 & (d >>> 16 ^ (h ^= r))) << 16,d ^= r = 858993459 & ((h ^= r) >>> 2 ^ d),d ^= r = 16711935 & ((h ^= r << 2) >>> 8 ^ d),d = (d ^= (r = 1431655765 & (d >>> 1 ^ (h ^= r << 8))) << 1) << 1 | d >>> 31,h = (h ^= r) << 1 | h >>> 31,c = 0; c < I; c += 3) {for (b = p[c + 1],y = p[c + 2],o = p[c]; o != b; o += y)l = h ^ z[o],u = (h >>> 4 | h << 28) ^ z[o + 1],r = d,d = h,h = r ^ (C[l >>> 24 & 63] | x[l >>> 16 & 63] | T[l >>> 8 & 63] | L[63 & l] | _[u >>> 24 & 63] | w[u >>> 16 & 63] | k[u >>> 8 & 63] | A[63 & u]);r = d,d = h,h = r}h = h >>> 1 | h << 31,h ^= r = 1431655765 & ((d = d >>> 1 | d << 31) >>> 1 ^ h),h ^= (r = 16711935 & (h >>> 8 ^ (d ^= r << 1))) << 8,h ^= (r = 858993459 & (h >>> 2 ^ (d ^= r))) << 2,h ^= r = 65535 & ((d ^= r) >>> 16 ^ h),h ^= r = 252645135 & ((d ^= r << 16) >>> 4 ^ h),d ^= r << 4,1 == n && (i ? (f = d,m = h) : (d ^= v,h ^= g)),O += String.fromCharCode(d >>> 24, d >>> 16 & 255, d >>> 8 & 255, 255 & d, h >>> 24, h >>> 16 & 255, h >>> 8 & 255, 255 & h),512 == (j += 8) && (B += O,O = "",j = 0)}if (B = (B += O).replace(/\0*$/g, ""),!i) {if (1 === s) {var $ = 0;(F = B.length) && ($ = B.charCodeAt(F - 1)),$ <= 8 && (B = B.substring(0, F - $))}B = decodeURIComponent(escape(B))}return B
}function getData(encryptData) {return JSON.parse(s("5e5062e82f15fe4ca9d24bc5", decode(encryptData), 0, 0, "012345677890123", 1))
}

Python：

import json
import requests
import execjsnode = execjs.get()headers = {"Accept": "application/json, text/plain, */*","Accept-Encoding": "gzip, deflate, br","Accept-Language": "zh-CN,zh;q=0.9","Connection": "keep-alive","Content-Length": "22","Content-Type": "application/x-www-form-urlencoded","Host": "********","Origin": "******","sec-ch-ua": '" Not A;Brand";v="99", "Chromium";v="96", "Google Chrome";v="96"',"sec-ch-ua-mobile": "?0","sec-ch-ua-platform": '"macOS"',"Sec-Fetch-Dest": "empty","Sec-Fetch-Mode": "cors","Sec-Fetch-Site": "same-site","User-Agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.93 Safari/537.36",
}payload = 'page=1&num=20&unionid='
url = '*********'
res = requests.post(url, headers=headers, data=payload)
encrypt_data = json.loads(res.text)['encrypt_data']
with open('***.js', 'r', encoding='utf-8') as f:ctx = node.compile(f.read())
real_data = ctx.eval(f'getData("{encrypt_data}")') # 调用js函数
print(real_data)  # 输出真实数据