How to bypass verification code detection by crawler reverse engineering?

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Share some ideas about crawlers, reverse engineering and analysis in daily study. If there are any mistakes in the article, you are welcome to share and correct me☀️

Clicking to log in will load 2 addresses

Address 1: aHR0cHM6Ly9hcGkud2VpLWxpdS5jb20vYXBpL3YxL1Rva2VuL2NvZGU=

Address 2: aHR0cHM6Ly9hcGkud2VpLWxpdS5jb20vYXBpL3YxL1Rva2Vu

**Summary: **Address 2 contains the return 公钥and item2parameters of address 1 carrying parameters

4.3 JavaScript analysis

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**Summary:** It can be seen from here that the password is encrypted

Next XHRbreakpoint analysis aHR0cHM6Ly9hcGkud2VpLWxpdS5jb20vYXBpL3YxL1Rva2Vu, you can find the parameters at the following location

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4.4 Key analysis

Pull the slider to get the background public key item1and timeitem2

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4.5 Algorithm restoration

4.5.1 Use python to simulate request testing

def get\_miyue():  
    session = requests.session()  
    header = {
    
      
        'asdasd'  
    }  
    session.headers = header  
    url = J2h0dHBzOi8vYXBpLndlaS1saXUuY29tL2FwaS92MS9Ub2tlbi9jb2RlJw==  
    res = session.get(url)  
    if res.status\_code == 200:  
        res1 = res.json().get('data')  
        item1 = res1.get('item1')  
        item2 = res1.get('item2')  
        return item1,item2

4.5.2 JavaScript test code

JSEncrypt \= require('jsencrypt');  
function encrypt(module,pubCode,pwd){
    
      
    var encrypt \= new JSEncrypt();  
    encrypt.setPublicKey(module);  
    var result \= encrypt.encrypt(pubCode + pwd);  
    return result;  
}

4.5.3 Password acquisition

js\_code \= open('psd.js','r').read()  
result \= execjs.compile(js\_code).call('encrypt',item1,item2,jm\_sha256(''))

Today’s sharing ends here. Welcome everyone to pay attention to the next article. See you there⛽️

at last:

[For those who want to learn crawlers, I have compiled a lot of Python learning materials and uploaded them to the CSDN official. Friends in need can scan the QR code below to obtain them]