JS逆向:破解猿人学比赛第16题

1. 分析加密参数

  • 通过分析请求,发现需要处理的加密参数是 m,另一个参数 t 为时间戳。

2. 定位函数入口

此处可以使用两种方法:

  • 直接全局搜索;
  • XHR 断点 + 跟栈;

2.1. 直接全局搜索

由于目标函数是一个英文字母,所以不能直接查找单字母 m,而是需要加一下辅助行的字符。 本题中,可以尝试的搜索关键字包括:

  • m=
  • m =
  • .m=
  • .m =
  • ['m']=
  • ['m'] =
  • ["m"]=
  • ["m"] =
  • m:
  • .m:

此处,通过搜索 .m = 可以直接定位到函数入口。

如下图:

2.2. XHR 断点 + 跟栈

我们也可以打一个 Any XHR or fetch 断点,然后在翻页的时候让网页断下来。

之后在 Call Stack 中跟栈分析,通过分析发现在 window.request 位置 m 出现了。

如下图:

经过分析代码,可以找到代码入口:r.m = n[e(528)](btoa, p_s),

3. 扣代码 + 补环境

js代码 实际意义
n[e(528)] ƒ (e,t){return e(t)}
e(496) 'parse'
e(517) 'toString'
u(208) 'btoa'

基于前面的分析,扣出并改写得到下面的 js 代码。

p_s = Date['parse'](new Date)['toString']();
m = btoa(p_s);
console.log(m);

之后开始扣代码以及补环境操作。

注意:在处理 n 函数 _0x4c28 数组的时候需要注意,这个数组在初始化以后有被做混淆操作处理,如果只是扣出数组初始化代码,后面是会报错的。

通过扣代码和补环境操作,我们得到了可执行的 js 文件。 在本地执行后,我们发现 js 代码成功返回了与目标参数相似的内容。 如下图:

接下来,使用此参数发送请求,尝试获取数据,但是却一直无法成功返回数据。 使用 fiddler 抓包,发现此时服务器返回了 301错误。 如下图:

4. 投毒处理策略

投毒的定义:投毒,指的是js代码中会对环境进行很多检测,如果识别为非正常浏览器,就会对某些参数进行修改,造成最终结果错误,这种过程称为 投毒

4.1. 常见的投毒位置

  • try ... cach ...
  • if ... else ...
  • 判断表达式:||&&?

    4.2. 插桩定位

    在本地 js 文件可能投毒的位置,使用 console.log 打印出值; 在浏览器相同位置打上断点,查看运行的结果值; 进而对比二者是否相同,如果不同就是此处被投毒了。

基于上面的投毒和反投毒思想,我们逐个分析,发现 n.g 在本地执行的结果和在浏览器执行的结果不同。本地执行结果为 undefined,而在浏览器中则为 window 对象。

4.3. 修改代码

此处,将 n.g 修改为 window。 重新执行本地文件,并发送请求,发现成功获取返回值。 如下图:

5. 完整 js 代码

sdk = function (timeString) {
    var window = global;
    var _0x34e7 = ['split', 'ABHICESQWK', 'FKByN', 'U987654321', 'lmHcG', 'dICfr', 'Szksx', 'Bgrij', 'iwnNJ', 'jihgfdecba', 'GfTek', 'gfdecbaZXY', 'constructo', 'QIoXW', 'jLRMs', 'AqLWq', '0zyxwvutsr', 'TKgNw', 'eMnqD', 'thjIz', 'btoa', 'MNPQRSTWXY', 'oPsqh', 'niIlq', 'evetF', 'LVZVH', 'fYWEX', 'kmnprstwxy', 'aYkvo', 'tsrqpomnlk', 'HfLqY', 'aQCDK', 'lGBLj', 'test', '3210zyxwvu', 'QWK2Fi', 'return /" ', 'hsJtK', 'jdwcO', 'SlFsj', 'OWUOc', 'LCaAn', '[^ ]+)+)+[', 'FAVYf', '2Fi+987654', 'floor', 'join', 'EuwBW', 'OXYrZ', 'charCodeAt', 'SkkHG', 'iYuJr', 'GwoYF', 'kPdGe', 'cVCcp', 'INQRH', 'INVALID_CH', 'charAt', 'push', 'apply', 'lalCJ', 'kTcRS', '+ this + "', 'ykpOn', 'gLnjm', 'gmBaq', 'kukBH', 'dvEWE', 'SFKLi', '^([^ ]+( +', 'qpomnlkjih', '^ ]}', 'pHtmC', 'length'];
    var l = function (e, t) {
        return _0x34e7[e -= 188]
    };
    var u = l;
    var f = u(191) + u(204) + u(258) + u(199) + "WVUTSRQPON" + u(189) + u(232) + u(222) + u(217) + u(197) + "ZXYWVUTSRQPONABHICES" + u(223);
    // console.log(u(208));
    var d = function (e) {
        var t = u
            , n = {};
        n[t(214)] = function (e, t) {
            return e || t
        }
            ,
            n.bWcgB = function (e, t) {
                return e * t
            }
            ,
            n[t(227)] = "ABCDEFGHJK" + t(209) + "Zabcdefhij" + t(215) + "z2345678";
        for (var r = n, o = "1|3|0|4|2|5"[t(188)]("|"), a = 0; ;) {
            switch (o[a++]) {
                case "0":
                    var s = l[t(261)];
                    continue;
                case "1":
                    e = r[t(214)](e, 32);
                    continue;
                case "2":
                    for (i = 0; i < e; i++)
                        c += l[t(245)](Math[t(233)](r.bWcgB(Math.random(), s)));
                    continue;
                case "3":
                    var l = r[t(227)];
                    continue;
                case "4":
                    var c = "";
                    continue;
                case "5":
                    return c
            }
            break
        }
    };
    var e, t;
    _0x4c28 = ["18|38|15|2", "ucisR", "wWwRM", "LzcOo", "yWGcu", "PlAEw", "ihcci", "hBKtU", "rvloG", "xcQTI", "uhJgH", "vRqUp", "EQEzR", "abc", "QgSUn", "0|45|44|19", "WMqBp", "koePJ", "jGSEC", "IKbhW", "wEOgn", "|49|71|11|", "xgzfr", "ABCDEF", "DdHPB", "aFxRD", "sFtiw", "concat", "YhaCC", "YVBwM", "abYok", "2|28|6|36|", "NLOsy", "bRLIN", "xGAWc", "length", "zYRlD", "14|67|61|3", "bolvy", "pagBT", "mdsJQ", "4|69|41|26", "kaXPV", "IWxBE", "pviAr", "5|0|2", "lvwPz", "YcDFe", "yGmJD", "FcYqi", "AAZoR", "|46|5|3|50", "PnITs", "ABCDEFGHIJ", "charCodeAt", "KLMNOPQRST", "prrXX", "FDiNG", "split", "oBesn", "9|24|10|56", "VaXsK", "fromCharCo", "FDfcp", "rrdPR", "HHkBN", "89+/", "mfuQZ", "PbrnX", "FcXlo", "rNapo", "fEXNi", "qtIDJ", "60|53|21|5", "Rtsed", "SUrST", "nsaps", "vyNVU", "2|29|23|64", "0|43|57|4|", "NNXUu", "nCrbn", "wQPIq", "XBcOb", "39|40|47|6", "ljkOt", "yMPhx", "TXzzv", "0123456789", "fmdcS", "iXQwu", "grCxb", "3|6|1|4|7|", "wKeAM", "Iekey", "opqrstuvwx", "|7|17", "BQgZQ", "BtzmV", "jZUAt", "HYhpy", "Yvoqt", "VyzBI", "NNVLf", "dbmfK", "0|58|16|32", "UAFHv", "WNIsZ", "2|1|4|3|5|", "JFqRJ", "zObVA", "d24fb0d696", "XfWkD", "MFmWH", "lZISZ", "WzbFA", "kaQlD", "3f7d28e17f", "eSwEi", "YpeFX", "kZhzK", "KxKIe", "LAIPf", "LjyKQ", "YLwOK", "iqfMz", "51|8|0|65|", "JRihE", "nqEyg", "|37|22|27|", "ZXsFi", "goEwl", "|31|63|48|", "wvVCN", "wnDlW", "Myvqp", "UlhBp", "fwCDC", "charAt", "Lmhlz", "WQCAS", "UXeVn", "KIXRL", "HiEZt", "WNzfT", "lNWda", "tsNzQ"],
        e = _0x4c28,
        t = 368,
        function (t) {
            for (; --t;)
                e.push(e.shift())
        }(++t);
    var n = function (e, t) {
        return _0x4c28[e -= 0]
    };
    var n = function (e, t) {
        return _0x4c28[e -= 0]
    };
    window.md5 = function (e) {
        var t = n
            , r = {
            fEXNi: function (e, t) {
                return e(t)
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            LzcOo: function (e, t, n) {
                return e(t, n)
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            r[t(120)] = function (e, t, n) {
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            r[t(69)] = function (e, t) {
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            r[t(109)] = function (e, t) {
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            r[t(112)] = t(86),
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            r[t(70)] = t(18) + t(118),
            r[t(16)] = function (e, t) {
                return e < t
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            ,
            r[t(2)] = t(110) + t(5) + t(133) + "|55|13|12|" + t(146) + t(114) + t(94) + "35|68|33|4" + t(104) + t(52) + t(73) + t(88) + t(55) + "25|34|1|2|" + t(10) + t(4) + t(124) + t(58) + "52|59|66|7" + t(31) + t(22),
            r[t(53)] = function (e, t, n, r, i, o, a, s) {
                return e(t, n, r, i, o, a, s)
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            r[t(35)] = function (e, t) {
                return e + t
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            r[t(141)] = function (e, t, n, r, i, o, a, s) {
                return e(t, n, r, i, o, a, s)
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            r[t(91)] = function (e, t, n, r, i, o, a, s) {
                return e(t, n, r, i, o, a, s)
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            r[t(65)] = function (e, t) {
                return e + t
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            r[t(38)] = function (e, t, n, r, i, o, a, s) {
                return e(t, n, r, i, o, a, s)
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            ,
            r[t(19)] = function (e, t) {
                return e + t
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            ,
            r[t(117)] = function (e, t, n) {
                return e(t, n)
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            ,
            r[t(92)] = function (e, t) {
                return e + t
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            ,
            r[t(82)] = function (e, t) {
                return e + t
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            ,
            r[t(111)] = function (e, t, n) {
                return e(t, n)
            }
            ,
            r[t(78)] = function (e, t) {
                return e + t
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            ,
            r.lZISZ = function (e, t, n, r, i, o, a, s) {
                return e(t, n, r, i, o, a, s)
            }
            ,
            r.Iekey = function (e, t, n, r, i, o, a, s) {
                return e(t, n, r, i, o, a, s)
            }
            ,
            r.AAZoR = function (e, t) {
                return e + t
            }
            ,
            r[t(67)] = function (e, t, n, r, i, o, a, s) {
                return e(t, n, r, i, o, a, s)
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            ,
            r.UlhBp = function (e, t) {
                return e + t
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            ,
            r.yMPhx = function (e, t, n, r, i, o, a, s) {
                return e(t, n, r, i, o, a, s)
            }
            ,
            r[t(138)] = function (e, t) {
                return e + t
            }
            ,
            r[t(121)] = function (e, t) {
                return e + t
            }
            ,
            r[t(98)] = function (e, t, n) {
                return e(t, n)
            }
            ,
            r.kHuTw = function (e, t, n, r, i, o, a, s) {
                return e(t, n, r, i, o, a, s)
            }
            ,
            r[t(50)] = function (e, t, n, r, i, o, a, s) {
                return e(t, n, r, i, o, a, s)
            }
            ,
            r[t(142)] = function (e, t, n, r, i, o, a, s) {
                return e(t, n, r, i, o, a, s)
            }
            ,
            r[t(87)] = function (e, t) {
                return e + t
            }
            ,
            r[t(90)] = function (e, t) {
                return e + t
            }
            ,
            r[t(59)] = function (e, t, n, r, i, o, a, s) {
                return e(t, n, r, i, o, a, s)
            }
            ,
            r[t(28)] = function (e, t) {
                return e + t
            }
            ,
            r[t(119)] = function (e, t) {
                return e + t
            }
            ,
            r.YpeFX = function (e, t) {
                return e + t
            }
            ,
            r[t(7)] = function (e, t, n, r, i, o, a, s) {
                return e(t, n, r, i, o, a, s)
            }
            ,
            r.prrXX = function (e, t) {
                return e + t
            }
            ,
            r.kaQlD = function (e, t) {
                return e + t
            }
            ,
            r.qtIDJ = function (e, t, n, r, i, o, a, s) {
                return e(t, n, r, i, o, a, s)
            }
            ,
            r.xGAWc = function (e, t) {
                return e + t
            }
            ,
            r[t(134)] = function (e, t, n, r, i, o, a, s) {
                return e(t, n, r, i, o, a, s)
            }
            ,
            r[t(89)] = function (e, t) {
                return e + t
            }
            ,
            r[t(15)] = function (e, t, n, r, i, o, a, s) {
                return e(t, n, r, i, o, a, s)
            }
            ,
            r[t(9)] = function (e, t) {
                return e + t
            }
            ,
            r[t(56)] = function (e, t) {
                return e + t
            }
            ,
            r[t(6)] = function (e, t, n, r, i, o, a, s) {
                return e(t, n, r, i, o, a, s)
            }
            ,
            r[t(32)] = function (e, t) {
                return e + t
            }
            ,
            r[t(99)] = function (e, t, n, r, i, o, a, s) {
                return e(t, n, r, i, o, a, s)
            }
            ,
            r[t(39)] = function (e, t) {
                return e + t
            }
            ,
            r[t(113)] = function (e, t, n, r, i, o, a, s) {
                return e(t, n, r, i, o, a, s)
            }
            ,
            r[t(106)] = function (e, t, n, r, i, o, a, s) {
                return e(t, n, r, i, o, a, s)
            }
            ,
            r[t(66)] = function (e, t, n, r, i, o, a, s) {
                return e(t, n, r, i, o, a, s)
            }
            ,
            r.TXzzv = function (e, t) {
                return e + t
            }
            ,
            r.NNVLf = function (e, t, n, r, i, o, a, s) {
                return e(t, n, r, i, o, a, s)
            }
            ,
            r[t(79)] = function (e, t) {
                return e + t
            }
            ,
            r[t(1)] = function (e, t, n, r, i, o, a, s) {
                return e(t, n, r, i, o, a, s)
            }
            ,
            r[t(81)] = function (e, t) {
                return e + t
            }
            ,
            r.MXnIN = function (e, t) {
                return e >> t
            }
            ,
            r[t(23)] = function (e, t) {
                return e << t
            }
            ,
            r.nqEyg = function (e, t) {
                return e % t
            }
            ,
            r.kaXPV = function (e, t) {
                return e >>> t
            }
            ,
            r[t(24)] = function (e, t, n) {
                return e(t, n)
            }
            ,
            r[t(44)] = function (e, t, n) {
                return e(t, n)
            }
            ,
            r[t(30)] = function (e, t, n) {
                return e(t, n)
            }
            ,
            r[t(143)] = function (e, t) {
                return e | t
            }
            ,
            r[t(101)] = function (e, t) {
                return e & t
            }
            ,
            r[t(122)] = function (e, t, n, r, i, o, a) {
                return e(t, n, r, i, o, a)
            }
            ,
            r.ZpUiH = function (e, t) {
                return e & t
            }
            ,
            r[t(72)] = function (e, t) {
                return e ^ t
            }
            ,
            r[t(130)] = function (e, t) {
                return e ^ t
            }
            ,
            r[t(41)] = function (e, t) {
                return e | t
            }
            ,
            r[t(116)] = function (e, t) {
                return e > t
            }
            ,
            r[t(80)] = function (e, t) {
                return e(t)
            }
            ,
            r[t(33)] = function (e, t, n) {
                return e(t, n)
            }
            ,
            r[t(83)] = function (e, t) {
                return e(t)
            }
            ,
            r[t(60)] = function (e, t) {
                return e + t
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            ,
            r.FDfcp = function (e, t) {
                return e * t
            }
            ,
            r[t(95)] = function (e, t) {
                return e + t
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            ,
            r[t(51)] = function (e, t) {
                return e & t
            }
            ,
            r.DdHPB = function (e, t) {
                return e >> t
            }
            ,
            r.abYok = function (e, t) {
                return e | t
            }
            ,
            r[t(84)] = function (e, t) {
                return e << t
            }
            ,
            r[t(105)] = function (e, t) {
                return e & t
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            ,
            r[t(8)] = function (e, t) {
                return e - t
            }
            ,
            r[t(137)] = function (e) {
                return e()
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            ,
            r.YVBwM = function (e, t) {
                return e << t
            }
            ,
            r[t(27)] = function (e, t) {
                return e & t
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            ,
            r[t(26)] = function (e, t) {
                return e / t
            }
            ,
            r[t(74)] = function (e, t) {
                return e * t
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            ,
            r[t(49)] = t(14) + "abcdef",
            r[t(36)] = function (e, t) {
                return e >> t
            }
            ,
            r[t(46)] = function (e, t) {
                return e + t
            }
            ,
            r[t(75)] = function (e, t) {
                return e >> t
            }
            ,
            r[t(47)] = function (e, t) {
                return e * t
            }
            ,
            r[t(11)] = t(126) + t(128) + "UVWXYZabcdefghijklmn" + t(21) + "yz01234567" + t(139),
            r[t(63)] = function (e, t) {
                return e * t
            }
        ,
        r.KIXRL = function (e, t) {
            return e << t
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        ,
        r[t(57)] = function (e, t) {
            return e % t
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        ,
        r[t(77)] = function (e, t) {
            return e << t
        }
        ,
        r[t(71)] = function (e, t) {
            return e >> t
        }
        ,
        r.jZUAt = function (e, t) {
            return e >> t
        }
        ,
        r[t(48)] = function (e, t) {
            return e + t
        }
        ,
        r[t(17)] = function (e, t) {
            return e % t
        }
        ,
        r[t(85)] = function (e, t) {
            return e * t
        }
        ,
        r[t(61)] = function (e, t) {
            return e < t
        }
        ,
        r.mfuQZ = function (e, t) {
            return e + t
        }
        ,
        r[t(125)] = function (e, t) {
            return e * t
        }
        ,
        r[t(0)] = function (e, t) {
            return e(t)
        }
        ;
        var i = r;

        function o(e, n) {
            for (var r = t, o = i.WNzfT[r(131)]("|"), a = 0; ;) {
                switch (o[a++]) {
                    case "0":
                        for (var d = 0; i.iXQwu(d, e.length); d += 16)
                            for (var p = i[r(2)][r(131)]("|"), h = 0; ;) {
                                switch (p[h++]) {
                                    case "0":
                                        w = i[r(53)](l, w, b, x, T, e[d + 2], 9, -51403784);
                                        continue;
                                    case "1":
                                        x = u(x, T, w, b, e[d + 6], 23, 76029189);
                                        continue;
                                    case "2":
                                        b = i[r(53)](u, b, x, T, w, e[i.JFqRJ(d, 9)], 4, -640364487);
                                        continue;
                                    case "3":
                                        T = i[r(141)](c, T, w, b, x, e[d + 10], 15, -1051523);
                                        continue;
                                    case "4":
                                        T = s(T, w, b, x, e[i.JFqRJ(d, 2)], 17, 606105819);
                                        continue;
                                    case "5":
                                        w = i[r(91)](c, w, b, x, T, e[i[r(65)](d, 3)], 10, -1894446606);
                                        continue;
                                    case "6":
                                        w = i.XfWkD(l, w, b, x, T, e[i.wKeAM(d, 14)], 9, -1019803690);
                                        continue;
                                    case "7":
                                        T = i.pviAr(f, T, v);
                                        continue;
                                    case "8":
                                        b = i.XfWkD(l, b, x, T, w, e[i[r(92)](d, 13)], 5, -1444681467);
                                        continue;
                                    case "9":
                                        x = i[r(38)](s, x, T, w, b, e[i[r(82)](d, 3)], 22, -1044525330);
                                        continue;
                                    case "10":
                                        w = s(w, b, x, T, e[i[r(82)](d, 5)], 12, 1200080426);
                                        continue;
                                    case "11":
                                        x = i[r(38)](l, x, T, w, b, e[i[r(82)](d, 0)], 20, -373897302);
                                        continue;
                                    case "12":
                                        w = i[r(38)](s, w, b, x, T, e[i[r(82)](d, 9)], 12, -1958435417);
                                        continue;
                                    case "13":
                                        b = i.XfWkD(s, b, x, T, w, e[i.xcQTI(d, 8)], 7, 1770035416);
                                        continue;
                                    case "14":
                                        var m = b;
                                        continue;
                                    case "15":
                                        w = i[r(38)](u, w, b, x, T, e[i.xcQTI(d, 8)], 11, -2022574463);
                                        continue;
                                    case "16":
                                        b = f(b, m);
                                        continue;
                                    case "17":
                                        w = i[r(111)](f, w, g);
                                        continue;
                                    case "18":
                                        x = l(x, T, w, b, e[i[r(78)](d, 12)], 20, -1921207734);
                                        continue;
                                    case "19":
                                        w = i[r(40)](u, w, b, x, T, e[d + 4], 11, 1272893353);
                                        continue;
                                    case "20":
                                        T = i[r(20)](u, T, w, b, x, e[i.PlAEw(d, 11)], 16, 1839030562);
                                        continue;
                                    case "21":
                                        b = s(b, x, T, w, e[i[r(123)](d, 12)], 7, 1804550682);
                                        continue;
                                    case "22":
                                        x = u(x, T, w, b, e[i[r(123)](d, 10)], 23, -1094730640);
                                        continue;
                                    case "23":
                                        T = i[r(67)](c, T, w, b, x, e[d + 14], 15, -1416354905);
                                        continue;
                                    case "24":
                                        b = s(b, x, T, w, e[i[r(123)](d, 4)], 7, -176418897);
                                        continue;
                                    case "25":
                                        w = i.UXeVn(u, w, b, x, T, e[d + 0], 11, -358537222);
                                        continue;
                                    case "26":
                                        b = i.UXeVn(l, b, x, T, w, e[i[r(62)](d, 1)], 5, -165796510);
                                        continue;
                                    case "27":
                                        b = i.UXeVn(u, b, x, T, w, e[i[r(62)](d, 13)], 4, 681279174);
                                        continue;
                                    case "28":
                                        b = i[r(12)](l, b, x, T, w, e[i[r(138)](d, 9)], 5, 568446438);
                                        continue;
                                    case "29":
                                        w = i.yMPhx(c, w, b, x, T, e[d + 7], 10, 11261161415);
                                        continue;
                                    case "30":
                                        var g = w;
                                        continue;
                                    case "31":
                                        b = c(b, x, T, w, e[i.yGmJD(d, 8)], 6, 1873313359);
                                        continue;
                                    case "32":
                                        x = i.aFxRD(f, x, y);
                                        continue;
                                    case "33":
                                        T = i[r(12)](l, T, w, b, x, e[i[r(121)](d, 15)], 14, -660478335);
                                        continue;
                                    case "34":
                                        T = i.kHuTw(u, T, w, b, x, e[d + 3], 16, -722881979);
                                        continue;
                                    case "35":
                                        b = i[r(50)](l, b, x, T, w, e[i[r(121)](d, 5)], 5, -701520691);
                                        continue;
                                    case "36":
                                        T = l(T, w, b, x, e[i[r(121)](d, 3)], 14, -187363961);
                                        continue;
                                    case "37":
                                        T = i[r(142)](u, T, w, b, x, e[i.QgSUn(d, 7)], 16, -155497632);
                                        continue;
                                    case "38":
                                        b = i.FcXlo(u, b, x, T, w, e[i.koePJ(d, 5)], 4, -378558);
                                        continue;
                                    case "39":
                                        w = i[r(142)](u, w, b, x, T, e[i[r(90)](d, 12)], 11, -421815835);
                                        continue;
                                    case "40":
                                        T = i[r(59)](u, T, w, b, x, e[i[r(28)](d, 15)], 16, 530742520);
                                        continue;
                                    case "41":
                                        x = i.wvVCN(s, x, T, w, b, e[d + 15], 22, 1236531029);
                                        continue;
                                    case "42":
                                        x = i[r(59)](l, x, T, w, b, e[i[r(119)](d, 4)], 20, -405537848);
                                        continue;
                                    case "43":
                                        b = i[r(59)](s, b, x, T, w, e[i.lvwPz(d, 0)], 7, -680976936);
                                        continue;
                                    case "44":
                                        b = i[r(59)](u, b, x, T, w, e[i[r(45)](d, 1)], 4, -1530992060);
                                        continue;
                                    case "45":
                                        x = i.nCrbn(u, x, T, w, b, e[i[r(129)](d, 14)], 23, -35311556);
                                        continue;
                                    case "46":
                                        b = c(b, x, T, w, e[i[r(42)](d, 12)], 6, 1700485571);
                                        continue;
                                    case "47":
                                        x = i[r(7)](u, x, T, w, b, e[i.kaQlD(d, 2)], 23, -995338651);
                                        continue;
                                    case "48":
                                        T = c(T, w, b, x, e[d + 6], 15, -1560198380);
                                        continue;
                                    case "49":
                                        w = i[r(145)](l, w, b, x, T, e[i[r(107)](d, 6)], 9, -1069501632);
                                        continue;
                                    case "50":
                                        x = i[r(134)](c, x, T, w, b, e[i[r(89)](d, 1)], 21, -2054922799);
                                        continue;
                                    case "51":
                                        x = i.fmdcS(l, x, T, w, b, e[d + 8], 20, 1163531501);
                                        continue;
                                    case "52":
                                        x = i[r(15)](c, x, T, w, b, e[i[r(9)](d, 13)], 21, 1309151649);
                                        continue;
                                    case "53":
                                        x = i[r(15)](s, x, T, w, b, e[i[r(56)](d, 11)], 22, -1990404162);
                                        continue;
                                    case "54":
                                        w = i[r(6)](s, w, b, x, T, e[i[r(32)](d, 13)], 12, -40341101);
                                        continue;
                                    case "55":
                                        x = i.sFtiw(s, x, T, w, b, e[i.UAFHv(d, 7)], 22, -45705983);
                                        continue;
                                    case "56":
                                        T = i.sFtiw(s, T, w, b, x, e[i.MFmWH(d, 6)], 17, -1473231341);
                                        continue;
                                    case "57":
                                        w = i[r(99)](s, w, b, x, T, e[i.MFmWH(d, 1)], 12, -389564586);
                                        continue;
                                    case "58":
                                        x = c(x, T, w, b, e[i[r(39)](d, 9)], 21, -343485551);
                                        continue;
                                    case "59":
                                        b = i[r(113)](c, b, x, T, w, e[i[r(39)](d, 4)], 6, -145523070);
                                        continue;
                                    case "60":
                                        T = i.bRLIN(s, T, w, b, x, e[i[r(39)](d, 10)], 17, -42063);
                                        continue;
                                    case "61":
                                        var v = T;
                                        continue;
                                    case "62":
                                        b = i[r(66)](c, b, x, T, w, e[d + 0], 6, -198630844);
                                        continue;
                                    case "63":
                                        w = i[r(66)](c, w, b, x, T, e[i[r(13)](d, 15)], 10, -30611744);
                                        continue;
                                    case "64":
                                        x = c(x, T, w, b, e[d + 5], 21, -57434055);
                                        continue;
                                    case "65":
                                        T = i[r(29)](l, T, w, b, x, e[i[r(13)](d, 7)], 14, 1735328473);
                                        continue;
                                    case "66":
                                        w = i[r(29)](c, w, b, x, T, e[i[r(79)](d, 11)], 10, -1120210379);
                                        continue;
                                    case "67":
                                        var y = x;
                                        continue;
                                    case "68":
                                        w = i[r(1)](l, w, b, x, T, e[d + 10], 9, 38016083);
                                        continue;
                                    case "69":
                                        T = i[r(1)](s, T, w, b, x, e[i[r(79)](d, 14)], 17, -1502002290);
                                        continue;
                                    case "70":
                                        T = i.SUrST(c, T, w, b, x, e[i[r(79)](d, 2)], 15, 718787259);
                                        continue;
                                    case "71":
                                        T = l(T, w, b, x, e[i[r(81)](d, 11)], 14, 643717713);
                                        continue
                                }
                                break
                            }
                        continue;
                    case "1":
                        var b = 1732584193;
                        continue;
                    case "2":
                        return Array(b, x, T, w);
                    case "3":
                        e[i.MXnIN(n, 5)] |= i[r(23)](128, i[r(54)](n, 32));
                        continue;
                    case "4":
                        var x = -271733879;
                        continue;
                    case "5":
                        var w = 271733878;
                        continue;
                    case "6":
                        e[i.BQgZQ(i[r(115)](n + 64, 9), 4) + 14] = n;
                        continue;
                    case "7":
                        var T = -1732584194;
                        continue
                }
                break
            }
        }

        function a(e, n, r, o, a, s) {
            var l = t;
            return f(i.BtzmV(d, i[l(44)](f, i.dbmfK(f, n, e), i[l(30)](f, o, s)), a), r)
        }

        function s(e, n, r, o, s, l, u) {
            var c = t;
            return a(i[c(143)](i[c(101)](n, r), i[c(101)](~n, o)), e, n, s, l, u)
        }

        function l(e, n, r, o, s, l, u) {
            var c = t;
            return i[c(122)](a, i[c(143)](i.ZpUiH(n, o), i.ZpUiH(r, ~o)), e, n, s, l, u)
        }

        function u(e, n, r, o, s, l, u) {
            return i[t(122)](a, i.tsNzQ(n ^ r, o), e, n, s, l, u)
        }

        function c(e, n, r, o, s, l, u) {
            var c = t;
            return i[c(122)](a, i[c(130)](r, i[c(41)](n, ~o)), e, n, s, l, u)
        }

        function f(e, n) {
            var r = t
                , o = i[r(95)](65535 & e, i.iqfMz(n, 65535))
                , a = i[r(95)](e >> 16, i[r(97)](n, 16)) + i[r(97)](o, 16);
            return i[r(103)](i[r(84)](a, 16), i[r(105)](o, 65535))
        }

        function d(e, n) {
            var r = t;
            return i.abYok(e << n, e >>> i[r(8)](32, n))
        }

        function p(e) {
            for (var n = t, r = i[n(137)](Array), o = i[n(8)](i.vRqUp(1, 16), 1), a = 0; a < i.FDfcp(e[n(108)], 16); a += 16)
                r[i[n(97)](a, 5)] |= i[n(102)](i[n(27)](e[n(127)](i[n(26)](a, 16)), o), i[n(54)](a, 32));
            return r
        }

        function h(e) {
            for (var n = t, r = i[n(49)], o = "", a = 0; i.iXQwu(a, i[n(74)](e[n(108)], 4)); a++)
                o += i.xgzfr(r[n(64)](15 & i[n(36)](e[i[n(36)](a, 2)], i[n(46)](i[n(74)](a % 4, 8), 4))), r[n(64)](15 & i.wWwRM(e[a >> 2], i[n(47)](a % 4, 8))));
            return o
        }

        return i[t(0)]((function (e) {
                var n = t;
                return i[n(144)](h, i[n(76)](o, i.vyNVU(p, e), 16 * e[n(108)]))
            }
        ), e)
    };
    window[u(208)] = function (e) {
        var t = u
            , r = {};
        r.TGmSp = t(244) + "ARACTER_ERR",
            r[t(238)] = t(224) + t(250) + "/",
            r[t(205)] = "^([^ ]+( +" + t(230) + t(259),
            r.aYkvo = function (e) {
                return e()
            }
            ,
            r[t(254)] = function (e, t) {
                return e % t
            }
            ,
            r.evetF = function (e, t) {
                return e >> t
            }
            ,
            r.GfTek = t(196),
            r[t(260)] = function (e, t) {
                return e << t
            }
            ,
            r[t(229)] = function (e, t) {
                return e | t
            }
            ,
            r[t(242)] = function (e, t) {
                return e << t
            }
            ,
            r[t(228)] = function (e, t) {
                return e & t
            }
            ,
            r[t(207)] = function (e, t) {
                return e << t
            }
            ,
            r[t(202)] = function (e, t) {
                return e & t
            }
            ,
            r.jdwcO = function (e, t) {
                return e === t
            }
            ,
            r.kPdGe = t(231),
            r[t(195)] = t(213),
            r[t(201)] = function (e, t) {
                return e & t
            }
            ,
            r[t(206)] = function (e, t) {
                return e == t
            }
            ,
            r[t(219)] = function (e, t) {
                return e + t
            }
            ,
            r[t(220)] = function (e, t) {
                return e(t)
            }
        ;
        var i = r;
        if (/([^\u0000-\u00ff])/.test(e))
            throw new Error(i.TGmSp);
        for (var o, a, s, l = 0, c = []; l < e[t(261)];) {
            switch (a = e[t(237)](l),
                s = i.kukBH(l, 6)) {
                case 0:
                    delete window,
                        delete document,
                        c[t(246)](f[t(245)](i[t(212)](a, 2)));
                    break;
                case 1:
                    // console.log('"WhHMm" === i[t(198)] :',"WhHMm" === i[t(198)])
                    // console.log('n.g :', n.g)
                    // console.log('c[t(246)](f[t(245)](i.pHtmC(2 & o, 3) | i.evetF(a, 4))) :', c[t(246)](f[t(245)](i.pHtmC(2 & o, 3) | i.evetF(a, 4))))
                    // console.log('-----------------')
                    try {
                        "WhHMm" === i[t(198)] || window && c[t(246)](f[t(245)](i.pHtmC(2 & o, 3) | i.evetF(a, 4)))
                    } catch (e) {
                        c[t(246)](f[t(245)](i[t(229)](i.cVCcp(3 & o, 4), a >> 4)))
                    }
                    break;
                case 2:
                    c[t(246)](f[t(245)](i[t(229)](i[t(242)](15 & o, 2), i.evetF(a, 6)))),
                        c[t(246)](f[t(245)](i[t(228)](a, 63)));
                    break;
                case 3:
                    c[t(246)](f[t(245)](i[t(212)](a, 3)));
                    break;
                case 4:
                    c.push(f[t(245)](i[t(229)](i[t(207)](i.OWUOc(o, 4), 6), i[t(212)](a, 6))));
                    break;
                case 5:
                    c[t(246)](f[t(245)](i[t(229)](i[t(207)](i[t(202)](o, 15), 4), a >> 8))),
                        c.push(f.charAt(i[t(202)](a, 63)))
            }
            o = a,
                l++
        }
        return 0 == s ? i[t(226)](i[t(241)], i[t(195)]) || (c[t(246)](f[t(245)](i[t(201)](o, 3) << 4)),
            c.push("FM")) : i.eMnqD(s, 1) && (c[t(246)](f[t(245)]((15 & o) << 2)),
            c[t(246)]("K")),
            i[t(219)](i.aQCDK(d(15), window.md5(c[t(234)](""))), i[t(220)](d, 10))
    }
    // p_s = Date['parse'](new Date)['toString']();
    return btoa(timeString);
};

console.log(sdk('165343333'))