如何调试反 debug 的网页? - V2EX
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zzm88104

如何调试反 debug 的网页?

  •  
  •   zzm88104 Aug 14, 2024 2182 views
    This topic created in 624 days ago, the information mentioned may be changed or developed.

    https://ftty.ydmap.cn/booking/schedule/101332?salesItemId=100341

    他通过这段代码不停生成 debugger 的代码 有什么办法可以阻止他,然后调试我自己打的断点

     29556: ()=>{ (()=>{ if ("undefined" !== typeof window && !window.location.port) try { t() } catch (n) {} function e(e, t) { return Math.floor(Math.random() * (t - e)) + e } function t() { setInterval((()=>{ const t = e(0, 100); (function() { return !1 } )["constructor"](`\n // 禁止调试 \n ${Array.from({ length: t }).fill("\n ").join("")}\n debugger\n `)["call"]() } ), 50) } } )() } 
    15 replies    2024-08-19 19:07:38 +08:00
    Meursau1T
        1
    Meursau1T  
       Aug 14, 2024
    有个想法,没试过,是不是可以先抓包得到这个 js 文件,然后改写接口返回值,把这行代码干掉
    icedx
        2
    icedx  
       Aug 14, 2024
    看起来是在 console 洗屏的?
    happyeveryday
        3
    happyeveryday  
       Aug 14, 2024
    先拉下来,chrome devtools network 覆盖此文件
    LuckyLauncher
        4
    LuckyLauncher  
       Aug 14, 2024
    1. 访问网站,打开 console ,进入 debugger
    2. 通过 debugger 右侧面板找到调用栈的上一层,进入
    3. 右键代码面板,选择 override content ,选中 setInterval 那段函数,注释掉并保存
    4. 刷新页面,进行调试
    jpyl0423
        5
    jpyl0423  
       Aug 14, 2024

    LuckyLauncher
        6
    LuckyLauncher  
       Aug 14, 2024
    所以我说,搞这种东西就自己玩玩,实际上没啥用
    xiangyuecn
        7
    xiangyuecn  
       Aug 14, 2024
    Function.prototype.call=()=>{ console.log("call")}
    y77FXoxF970725SJ
        8
    y77FXoxF970725SJ  
       Aug 14, 2024
    控制台执行:

    var handler = window.setInterval(() => {}, 1000);
    for(let i = 1; i <= handler; i++)
    {
    clearInterval(i);
    }
    weixiangzhe
        9
    weixiangzhe  
       Aug 14, 2024
    开个代理工具替换这个 js
    hafuhafu
        10
    hafuhafu  
       Aug 14, 2024
    直接 F12 停用断点就行了..
    catamaran
        11
    catamaran  
       Aug 15, 2024
    catamaran
        12
    catamaran  
       Aug 15, 2024
    @catamaran 抱歉,楼主还要 debug 自己的断点,可我不知道怎么删除自己的回复
    lisongeee
        13
    lisongeee  
       Aug 15, 2024
    这有一个方案,通过重新编译浏览器,将 debug 更换为其他的 关键字 来禁用目标网页的 反调试 同时不影响自己的调试

    https://github.com/Sec-ant/a2d2-firefox
    CC11001100
        14
    CC11001100  
       Aug 18, 2024
    mzl980425
        15
    mzl980425  
       Aug 19, 2024
    装个油猴插件,把 setInterval 函数给重写掉
    ```Javascript
    // ==UserScript==
    // @name New script ydmap.cn
    // @namespace Violentmonkey Scripts
    // @match https://ftty.ydmap.cn/booking/schedule/101332*
    // @grant none
    // @version 1.0
    // @author -
    // @description 2024/8/19 19:05:07
    // ==/UserScript==

    window._setInterval = window.setInterval;
    window.setInterval = (fn, delay) => {
    if (fn.toString().includes('debugger')) {
    return;
    }
    else {
    return window._setInterval(fn, delay);
    }
    }
    ```
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