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221024【js逆向百例】PM2.5动态混淆代码调试0601、免责声明
const asiEw4u1MRaa = "bJh2iDQ426nBZCpu";//密钥偏移量IV,可自定义
​
const ackUg77x4UKa = "d2tsVa04fKQrdKMV";//AESkey,可自定义
const aciyc7VYHWUK = "fQPwUbUkjnW7yLBW";//密钥偏移量IV,可自定义
​
const dskS0yz8Kv4p = "hh3MPhKCaqBMcUFH";//DESkey,可自定义
const dsi8D0PTy3Tz = "xHnHFi7jV2FEANV2";//密钥偏移量IV,可自定义
​
const dckXiaIL7x7u = "omvcl4zNEnSUl1ez";//DESkey,可自定义
const dciWrdnnAkPb = "pAV4We6Ye7sK2wYu";//密钥偏移量IV,可自定义
​
const aes_local_key = 'emhlbnFpcGFsbWtleQ==';
const aes_local_iv = 'emhlbnFpcGFsbWl2';
​
var BASE64 = {
encrypt: function(text) {
var b = new Base64();
return b.encode(text);
},
decrypt: function(text) {
var b = new Base64();
return b.decode(text);
}
};
​
var DES = {
encrypt: function(text, key, iv){
var secretkey = (CryptoJS.MD5(key).toString()).substr(0, 16);
var secretiv = (CryptoJS.MD5(iv).toString()).substr(24, 8);
secretkey = CryptoJS.enc.Utf8.parse(secretkey);
secretiv = CryptoJS.enc.Utf8.parse(secretiv);
var result = CryptoJS.DES.encrypt(text, secretkey, {
iv: secretiv,
mode: CryptoJS.mode.CBC,
padding: CryptoJS.pad.Pkcs7
});
return result.toString();
},
decrypt: function(text, key, iv){
var secretkey = (CryptoJS.MD5(key).toString()).substr(0, 16);
var secretiv = (CryptoJS.MD5(iv).toString()).substr(24, 8);
secretkey = CryptoJS.enc.Utf8.parse(secretkey);
secretiv = CryptoJS.enc.Utf8.parse(secretiv);
var result = CryptoJS.DES.decrypt(text, secretkey, {
iv: secretiv,
mode: CryptoJS.mode.CBC,
padding: CryptoJS.pad.Pkcs7
});
return result.toString(CryptoJS.enc.Utf8);
}
};
​
var AES = {
encrypt: function(text, key, iv) {
var secretkey = (CryptoJS.MD5(key).toString()).substr(16, 16);
var secretiv = (CryptoJS.MD5(iv).toString()).substr(0, 16);
// console.log('real key:', secretkey);
// console.log('real iv:', secretiv);
secretkey = CryptoJS.enc.Utf8.parse(secretkey);
secretiv = CryptoJS.enc.Utf8.parse(secretiv);
var result = CryptoJS.AES.encrypt(text, secretkey, {
iv: secretiv,
mode: CryptoJS.mode.CBC,
padding: CryptoJS.pad.Pkcs7
});
return result.toString();
},
decrypt: function(text, key, iv) {
var secretkey = (CryptoJS.MD5(key).toString()).substr(16, 16);
var secretiv = (CryptoJS.MD5(iv).toString()).substr(0, 16);
secretkey = CryptoJS.enc.Utf8.parse(secretkey);
secretiv = CryptoJS.enc.Utf8.parse(secretiv);
var result = CryptoJS.AES.decrypt(text, secretkey, {
iv: secretiv,
mode: CryptoJS.mode.CBC,
padding: CryptoJS.pad.Pkcs7
});
return result.toString(CryptoJS.enc.Utf8);
}
};
​
var localStorageUtil = {
save: function(name, value) {
var text = JSON.stringify(value);
text = BASE64.encrypt(text);
text = AES.encrypt(text, aes_local_key, aes_local_iv);
try {
localStorage.setItem(name, text);
} catch (oException) {
if (oException.name === 'QuotaExceededError') {
console.log('Local limit exceeded');
localStorage.clear();
localStorage.setItem(name, text);
}
}
},
check: function(name) {
return localStorage.getItem(name);
},
getValue: function(name) {
var text = localStorage.getItem(name);
var result = null;
if (text) {
text = AES.decrypt(text, aes_local_key, aes_local_iv);
text = BASE64.decrypt(text);
result = JSON.parse(text);
}
return result;
},
remove: function(name) {
localStorage.removeItem(name);
}
};
​
// console.log('base64', BASE64.encrypt('key'));
​
function dHmbcjRKf2b(pEDie1v) {
pEDie1v = DES.decrypt(pEDie1v, dskS0yz8Kv4p, dsi8D0PTy3Tz);
return pEDie1v;
}
​
function djkQjTtEV9(pEDie1v) {
pEDie1v = AES.decrypt(pEDie1v, askLUsbSQBEI, asiEw4u1MRaa);
return pEDie1v;
}
​
function gRcWJlHeOYlFXmzA(key, period) {
if (typeof period === 'undefined') {
period = 0;
}
var d = DES.encrypt(key);
d = BASE64.encrypt(key);
var data = localStorageUtil.getValue(key);
if (data) { // 判断是否过期
const time = data.time;
const current = new Date().getTime();
if (new Date().getHours() >= 0 && new Date().getHours() < 5 && period > 1) {
period = 1;
}
if (current - (period * 60 * 60 * 1000) > time) { // 更新
data = null;
}
// 防止1-5点用户不打开页面,跨天的情况
if (new Date().getHours() >= 5 && new Date(time).getDate() !== new Date().getDate() && period === 24) {
data = null;
}
}
return data;
}
​
function osPVUjOycA(obj) {
var newObject = {};
Object.keys(obj).sort().map(function(key){
newObject[key] = obj[key];
});
return newObject;
}
function dCYCjxL1pD1S2b(data) {
data = BASE64.decrypt(data);
data = DES.decrypt(data, dskS0yz8Kv4p, dsi8D0PTy3Tz);
data = AES.decrypt(data, askLUsbSQBEI, asiEw4u1MRaa);
data = BASE64.decrypt(data);
return data;
}
var p47vmYDtcC = (function(){
​
function osPVUjOycA(obj){
var newObject = {};
Object.keys(obj).sort().map(function(key){
newObject[key] = obj[key];
});
return newObject;
}
return function(m2DDNdhO2, ou7kZ4){
var aGsw = '564e8a7e9b3e03f0b254a894b3de5dae';
var cOvOJ = 'WEB';
var tHrqLyD = new Date().getTime();
​
var pEDie1v = {
appId: aGsw,
method: m2DDNdhO2,
timestamp: tHrqLyD,
clienttype: cOvOJ,
object: ou7kZ4,
secret: hex_md5(aGsw + m2DDNdhO2 + tHrqLyD + cOvOJ + JSON.stringify(osPVUjOycA(ou7kZ4)))
};
pEDie1v = BASE64.encrypt(JSON.stringify(pEDie1v));
pEDie1v = DES.encrypt(pEDie1v, dckXiaIL7x7u, dciWrdnnAkPb);
return pEDie1v;
};
})();
​
function sj90Qy5s16uz9J4f(m2DDNdhO2, omS5Hw6YYC, cKmarb7AZ, pQ54lZk) {
const kXIQ = hex_md5(m2DDNdhO2 + JSON.stringify(omS5Hw6YYC));
​
const dVMdM = gRcWJlHeOYlFXmzA(kXIQ, pQ54lZk);
if (!dVMdM) {
var pEDie1v = p47vmYDtcC(m2DDNdhO2, omS5Hw6YYC);
$.ajax({
url: 'api/historyapi.php',
data: { hzsi2iyB0: pEDie1v },
type: "post",
success: function (dVMdM) {
dVMdM = dCYCjxL1pD1S2b(dVMdM);
ou7kZ4 = JSON.parse(dVMdM);
if (ou7kZ4.success) {
if (pQ54lZk > 0) {
ou7kZ4.result.time = new Date().getTime();
localStorageUtil.save(kXIQ, ou7kZ4.result);
}
cKmarb7AZ(ou7kZ4.result);
} else {
console.log(ou7kZ4.errcode, ou7kZ4.errmsg);
}
}
});
} else {
cKmarb7AZ(dVMdM);
}
}"C:\Program Files\Python39\python.exe" D:/220705【JS逆向百例】/221024【js逆向百例】PM2.5历史数据爬取049/test.py
调用JS代码加密后的密码为: Ek3vJti3x+5SvzmgulZH+G46lwpXbRT4uTxghb4oA/adJ8a4z2wZbk4h/ylx/8A/2EjebGI9hcoa6C0SoifZNePl0u675eG1ET2Kq0EFQo2AWOSKqsWdKC69kIu1M1hPXbIyaFFwToR8/2besaTg26X0LXTXHeBqYT/rdQQmAquT2Ws0lJEuk8DmovJYuNt7G0k8gY2YoCrBZf0dlhA2op/McAxVsdOy28g+J24tdj/+5SsFEWywaIU+prGUNMDkc4c0N2bbniEt7pUTi35JJhO21FFGFS4v/3V5xZyythgKjGTImpqlVHMwPjKTE9NcYzhv71zvuT+BTdQxSPxJzg==
调用JS代码加密后的密码为: {'success': False, 'errcode': 1001, 'errmsg': 'invalid param'}
2、逆向目标3、抓包分析4、逆向参数4.1 表单数据解密
- 本视频供学习交流使用,不用于其他任何目的。
- 本视频未经许可,禁止转载、下载、剪辑或任何修改,擅自使用导致的任何损失,作者均不负责。
- 本视频若涉及侵犯他人知识产权,请联系作者删除。
- 爬虫基本准则:可见即可爬,不可见不可爬。
- 本文章中所有内容仅供学习交流,严禁用于商业用途和非法用途,否则由此产生的一切后果均与作者无关!
- var pa6lYvN = p5iY3wO8xHEfI5E(mUz4y56RR, othCrNnMmV)
- p5iY3wO8xHEfI5E:加密的函数,每次刷新页面都会动态变化
- mUz4y56RR:参数,'GETMONTHDATA'
- othCrNnMmV:参数,{city: '北京'}
- 进入p5iY3wO8xHEfI5E函数,
const asiEw4u1MRaa = "bJh2iDQ426nBZCpu";//密钥偏移量IV,可自定义
​
const ackUg77x4UKa = "d2tsVa04fKQrdKMV";//AESkey,可自定义
const aciyc7VYHWUK = "fQPwUbUkjnW7yLBW";//密钥偏移量IV,可自定义
​
const dskS0yz8Kv4p = "hh3MPhKCaqBMcUFH";//DESkey,可自定义
const dsi8D0PTy3Tz = "xHnHFi7jV2FEANV2";//密钥偏移量IV,可自定义
​
const dckXiaIL7x7u = "omvcl4zNEnSUl1ez";//DESkey,可自定义
const dciWrdnnAkPb = "pAV4We6Ye7sK2wYu";//密钥偏移量IV,可自定义
​
const aes_local_key = 'emhlbnFpcGFsbWtleQ==';
const aes_local_iv = 'emhlbnFpcGFsbWl2';
​
var BASE64 = {
encrypt: function(text) {
var b = new Base64();
return b.encode(text);
},
decrypt: function(text) {
var b = new Base64();
return b.decode(text);
}
};
​
var DES = {
encrypt: function(text, key, iv){
var secretkey = (CryptoJS.MD5(key).toString()).substr(0, 16);
var secretiv = (CryptoJS.MD5(iv).toString()).substr(24, 8);
secretkey = CryptoJS.enc.Utf8.parse(secretkey);
secretiv = CryptoJS.enc.Utf8.parse(secretiv);
var result = CryptoJS.DES.encrypt(text, secretkey, {
iv: secretiv,
mode: CryptoJS.mode.CBC,
padding: CryptoJS.pad.Pkcs7
});
return result.toString();
},
decrypt: function(text, key, iv){
var secretkey = (CryptoJS.MD5(key).toString()).substr(0, 16);
var secretiv = (CryptoJS.MD5(iv).toString()).substr(24, 8);
secretkey = CryptoJS.enc.Utf8.parse(secretkey);
secretiv = CryptoJS.enc.Utf8.parse(secretiv);
var result = CryptoJS.DES.decrypt(text, secretkey, {
iv: secretiv,
mode: CryptoJS.mode.CBC,
padding: CryptoJS.pad.Pkcs7
});
return result.toString(CryptoJS.enc.Utf8);
}
};
​
var AES = {
encrypt: function(text, key, iv) {
var secretkey = (CryptoJS.MD5(key).toString()).substr(16, 16);
var secretiv = (CryptoJS.MD5(iv).toString()).substr(0, 16);
// console.log('real key:', secretkey);
// console.log('real iv:', secretiv);
secretkey = CryptoJS.enc.Utf8.parse(secretkey);
secretiv = CryptoJS.enc.Utf8.parse(secretiv);
var result = CryptoJS.AES.encrypt(text, secretkey, {
iv: secretiv,
mode: CryptoJS.mode.CBC,
padding: CryptoJS.pad.Pkcs7
});
return result.toString();
},
decrypt: function(text, key, iv) {
var secretkey = (CryptoJS.MD5(key).toString()).substr(16, 16);
var secretiv = (CryptoJS.MD5(iv).toString()).substr(0, 16);
secretkey = CryptoJS.enc.Utf8.parse(secretkey);
secretiv = CryptoJS.enc.Utf8.parse(secretiv);
var result = CryptoJS.AES.decrypt(text, secretkey, {
iv: secretiv,
mode: CryptoJS.mode.CBC,
padding: CryptoJS.pad.Pkcs7
});
return result.toString(CryptoJS.enc.Utf8);
}
};
​
var localStorageUtil = {
save: function(name, value) {
var text = JSON.stringify(value);
text = BASE64.encrypt(text);
text = AES.encrypt(text, aes_local_key, aes_local_iv);
try {
localStorage.setItem(name, text);
} catch (oException) {
if (oException.name === 'QuotaExceededError') {
console.log('Local limit exceeded');
localStorage.clear();
localStorage.setItem(name, text);
}
}
},
check: function(name) {
return localStorage.getItem(name);
},
getValue: function(name) {
var text = localStorage.getItem(name);
var result = null;
if (text) {
text = AES.decrypt(text, aes_local_key, aes_local_iv);
text = BASE64.decrypt(text);
result = JSON.parse(text);
}
return result;
},
remove: function(name) {
localStorage.removeItem(name);
}
};
​
// console.log('base64', BASE64.encrypt('key'));
​
function dHmbcjRKf2b(pEDie1v) {
pEDie1v = DES.decrypt(pEDie1v, dskS0yz8Kv4p, dsi8D0PTy3Tz);
return pEDie1v;
}
​
function djkQjTtEV9(pEDie1v) {
pEDie1v = AES.decrypt(pEDie1v, askLUsbSQBEI, asiEw4u1MRaa);
return pEDie1v;
}
​
function gRcWJlHeOYlFXmzA(key, period) {
if (typeof period === 'undefined') {
period = 0;
}
var d = DES.encrypt(key);
d = BASE64.encrypt(key);
var data = localStorageUtil.getValue(key);
if (data) { // 判断是否过期
const time = data.time;
const current = new Date().getTime();
if (new Date().getHours() >= 0 && new Date().getHours() < 5 && period > 1) {
period = 1;
}
if (current - (period * 60 * 60 * 1000) > time) { // 更新
data = null;
}
// 防止1-5点用户不打开页面,跨天的情况
if (new Date().getHours() >= 5 && new Date(time).getDate() !== new Date().getDate() && period === 24) {
data = null;
}
}
return data;
}
​
function osPVUjOycA(obj) {
var newObject = {};
Object.keys(obj).sort().map(function(key){
newObject[key] = obj[key];
});
return newObject;
}
function dCYCjxL1pD1S2b(data) {
data = BASE64.decrypt(data);
data = DES.decrypt(data, dskS0yz8Kv4p, dsi8D0PTy3Tz);
data = AES.decrypt(data, askLUsbSQBEI, asiEw4u1MRaa);
data = BASE64.decrypt(data);
return data;
}
var p47vmYDtcC = (function(){
​
function osPVUjOycA(obj){
var newObject = {};
Object.keys(obj).sort().map(function(key){
newObject[key] = obj[key];
});
return newObject;
}
return function(m2DDNdhO2, ou7kZ4){
var aGsw = '564e8a7e9b3e03f0b254a894b3de5dae';
var cOvOJ = 'WEB';
var tHrqLyD = new Date().getTime();
​
var pEDie1v = {
appId: aGsw,
method: m2DDNdhO2,
timestamp: tHrqLyD,
clienttype: cOvOJ,
object: ou7kZ4,
secret: hex_md5(aGsw + m2DDNdhO2 + tHrqLyD + cOvOJ + JSON.stringify(osPVUjOycA(ou7kZ4)))
};
pEDie1v = BASE64.encrypt(JSON.stringify(pEDie1v));
pEDie1v = DES.encrypt(pEDie1v, dckXiaIL7x7u, dciWrdnnAkPb);
return pEDie1v;
};
})();
​
function sj90Qy5s16uz9J4f(m2DDNdhO2, omS5Hw6YYC, cKmarb7AZ, pQ54lZk) {
const kXIQ = hex_md5(m2DDNdhO2 + JSON.stringify(omS5Hw6YYC));
​
const dVMdM = gRcWJlHeOYlFXmzA(kXIQ, pQ54lZk);
if (!dVMdM) {
var pEDie1v = p47vmYDtcC(m2DDNdhO2, omS5Hw6YYC);
$.ajax({
url: 'api/historyapi.php',
data: { hzsi2iyB0: pEDie1v },
type: "post",
success: function (dVMdM) {
dVMdM = dCYCjxL1pD1S2b(dVMdM);
ou7kZ4 = JSON.parse(dVMdM);
if (ou7kZ4.success) {
if (pQ54lZk > 0) {
ou7kZ4.result.time = new Date().getTime();
localStorageUtil.save(kXIQ, ou7kZ4.result);
}
cKmarb7AZ(ou7kZ4.result);
} else {
console.log(ou7kZ4.errcode, ou7kZ4.errmsg);
}
}
});
} else {
cKmarb7AZ(dVMdM);
}
}"C:\Program Files\Python39\python.exe" D:/220705【JS逆向百例】/221024【js逆向百例】PM2.5历史数据爬取049/test.py
调用JS代码加密后的密码为: Ek3vJti3x+5SvzmgulZH+G46lwpXbRT4uTxghb4oA/adJ8a4z2wZbk4h/ylx/8A/2EjebGI9hcoa6C0SoifZNePl0u675eG1ET2Kq0EFQo2AWOSKqsWdKC69kIu1M1hPXbIyaFFwToR8/2besaTg26X0LXTXHeBqYT/rdQQmAquT2Ws0lJEuk8DmovJYuNt7G0k8gY2YoCrBZf0dlhA2op/McAxVsdOy28g+J24tdj/+5SsFEWywaIU+prGUNMDkc4c0N2bbniEt7pUTi35JJhO21FFGFS4v/3V5xZyythgKjGTImpqlVHMwPjKTE9NcYzhv71zvuT+BTdQxSPxJzg==
调用JS代码加密后的密码为: {'success': False, 'errcode': 1001, 'errmsg': 'invalid param'}
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