请问一下大佬们这是什么类型的 js 加密方式，或该如何解，新手一枚。

有大佬帮忙看下吗？

有人吗

那丫自己写的，用 rc4 把代码加密了而已。
解密密钥也在代码里，刚刚翻了一半没心情了...

手机上看没有格式化过的代码就是一坨…

大概看了一下应该就十六进制命名混淆、关键词 base64+加密以及貌似有轻微的控制流平坦化，属于目前 js 加密界的常规中端操作，了解一下 AST （语法树）相关操作就能还原出正常些的代码了（直接用正则批量替换也行）。

如果你能找到你需要的部分的入口点的话，断点断下来之后手动抄一份也行，这个代码看起来不多的样子。

@imdong 感谢大佬的回复，谢谢

@locoz 感谢大佬的回复，谢谢

```
var encode_version = 'sojson.v5',
ialeh = 'b_data',
b_data = [
'cwvDng==',
'bDAaM8Oq',
'AGk8w7sv',
'RgXDuFXDnA==',
'wrsfMT8+',
'wpjCmsKTaMKowoLDncO4wqAhw7jDgnrChw==',
'cSLDtcKRw6rDpUPCq8OffV/DjBnCsA==',
'wpV+fcOVwp4=',
'w5skTcKcZw==',
'QcKrU8KCwps=',
'w4NKKcK5Z0YxwrzDlhJVwr7Dpj4=',
'Uh/Dtk7Dkg==',
'YsKsw6wfSAMlw4NG',
'CcOUUXRj',
'5Lmw6IOt5Ymy6ZuWw7XDjgTChy5Fw7PDjzk=',
// 从这里开始
'csKsw6gKTgo=',
'woAgIVTCucKtw5krRVvDoMOIwpJw',
'w7Y0woFcOA==',
'I8Odw4jDpMOfwpbDv2hrLsKpO8Kew7Q=',
'w7BiGQ=='
];
(function(b_data, b_num) {
var b_call = function(b_num) {
while (--b_num) {
b_data.push(b_data.shift());
}
};
b_call(++b_num);
} (b_data, 455)); // 455 / b_data.length 截取重组

var decode_obj /* _0x5e34 */ = function(de_id /* _0x27f050 */, de_key /* _0xd83274 */) {
de_id = de_id - 0;
var data_item /* _0x2060f1 */ = b_data[de_id];
console.log(de_id, data_item);
if (decode_obj.initialized === undefined) {
// init base64 decode
(function() {
var window /* _0x17a143 */ = typeof window !== 'undefined' ? window : typeof process === 'object' && typeof require === 'function' && typeof global === 'object' ? global: this;
var _0x1822e8 = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
window.atob || (window.atob = function(_0x2bcf1f) {
var _0x1758b7 = String(_0x2bcf1f).replace(/=+$/, '');
for (var _0x4513cf = 0,
_0x27feda, _0x30b0b7, _0x275cfd = 0,
_0x31ca09 = ''; _0x30b0b7 = _0x1758b7.charAt(_0x275cfd++);~_0x30b0b7 && (_0x27feda = _0x4513cf % 0x4 ? _0x27feda * 0x40 + _0x30b0b7: _0x30b0b7, _0x4513cf++%0x4) ? _0x31ca09 += String.fromCharCode(0xff & _0x27feda >> ( - 0x2 * _0x4513cf & 0x6)) : 0) {
_0x30b0b7 = _0x1822e8.indexOf(_0x30b0b7);
}
return _0x31ca09;
});
} ());

var rc4 /* _0x2e4cdf */= function(data_item /* _0x417bb1 */, de_key /* _0x5f16c8 */) {
console.log('rc4', data_item);
var arr_tmp /* _0x5eb132 */ = [],
key_num /* _0x486e97 */ = 0,
_0x578b31,
_0x1e5da8 = '',
urlcode /* _0x1a181c */ = '';
data_item = atob(data_item);
for (var i = 0, length = data_item.length; i < length; i++) {
urlcode += '%' + ('00' + data_item.charCodeAt(i).toString(16)).slice(-2);
}
data_item = decodeURIComponent(urlcode);
for (var n /* _0x7c88b1 */ = 0; n < 256; n++) {
arr_tmp[n] = n;
}
for (n = 0; n < 256; n++) {
key_num = (key_num + arr_tmp[n] + de_key.charCodeAt(n % de_key.length)) % 256;
_0x578b31 = arr_tmp[n];
arr_tmp[n] = arr_tmp[key_num];
arr_tmp[key_num] = _0x578b31;
}
n = 0;
key_num = 0;
for (var _0x1da9bb = 0; _0x1da9bb < data_item.length; _0x1da9bb++) {
n = (n + 0x1) % 256;
key_num = (key_num + arr_tmp[n]) % 256;
_0x578b31 = arr_tmp[n];
arr_tmp[n] = arr_tmp[key_num];
arr_tmp[key_num] = _0x578b31;
_0x1e5da8 += String.fromCharCode(data_item.charCodeAt(_0x1da9bb) ^ arr_tmp[(arr_tmp[n] + arr_tmp[key_num]) % 256]);
}
return _0x1e5da8;
};
decode_obj.rc4 = rc4;
decode_obj.data = {};
decode_obj.initialized = true; // !![];
}
var item /* _0x25e533 */ = decode_obj.data[de_id];
console.log(de_id, data_item, item);
if (item === undefined) {
if (decode_obj.once === undefined) {
decode_obj.once = true;
}
data_item = decode_obj.rc4(data_item, de_key);
decode_obj.data[de_id] = data_item;
} else {
data_item = item;
}
return data_item;
};
// 用户加密的代码 开始
wx.config({
'jsApiList': ['hideOptionMenu']
});
wx.ready(function() {
wx.hideOptionMenu();
});
var d_id /* d_id */ = 0;
function check /* _0x153e6c */() {
var d_obj /* _0xaa06b3 */ = {
'BtDbY': function _0x5b6c88(_0x7f979b, _0x402b7c) {
return _0x7f979b % _0x402b7c;
},
'FxGAC': function _0x4f8ef4(_0x16748e, _0x5c35e8) {
return _0x16748e !== _0x5c35e8;
},
'scHmt': 'pPm',
'JtBdW': 'ckP',
'INwnv': function _0x3cdc7e(_0x566bf1, _0xde4bbc) {
return _0x566bf1 + _0xde4bbc;
},
'DOPnM': function _0x136a1f(_0x491586, _0x32d6e3) {
return _0x491586 === _0x32d6e3;
},
'etRas': 'Fmn',
'gyFvz': function _0x3d4ad5(_0x3f651d, _0x485c68) {
return _0x3f651d + _0x485c68;
}
};
if (d_obj.BtDbY(d_id, 2)) {
if (d_obj.FxGAC(d_obj.scHmt, d_obj.JtBdW)) {
wx.showOptionMenu();
} else {
if (d_id % 2) {
wx.showOptionMenu();
} else {
wx.hideOptionMenu();
}
d_id = d_obj.INwnv(d_id, 1);
}
} else {
if (d_obj.DOPnM(d_obj.etRas, 'sQj')) {
wx.hideOptionMenu();
} else {
wx.hideOptionMenu();
}
}
d_id = d_obj.gyFvz(d_id, 1);
}
setInterval(check, 150);
// 用户加密的代码 结束
if (! (typeof encode_version !== 'undefined' && encode_version === 'sojson.v5')) {
window.alert('不能删除 sojson.v5');
};
encode_version = 'sojson.v5';
```

@imdong 感谢大佬。