JavaScript常用的Hook脚本

页面最早加载代码Hook时机

在source里用dom事件断点的script断点
然后刷新网页，就会断在第一个js标签，这时候就可以注入代码进行hook

监听键盘与鼠标事件

// 判断是否按下F12  onkeydown事件
/*
提示： 与 onkeydown 事件相关联的事件触发次序:
onkeydown
onkeypress
onkeyup
*/// F12的键码为 123，可以直接全局搜索 keyCode == 123, == 123 ,keyCode
document.onkeydown = function() {if (window.event && window.event.keyCode == 123) {// 改变键码event.keyCode = 0;event.returnValue = false;// 监听到F12被按下直接关闭窗口window.close();window.location = "about:blank";}
}
;
// 监听鼠标右键是否被按下方法 1， oncontextmenu事件
document.oncontextmenu = function () { return false; };// 监听鼠标右键是否被按下方法 2，onmousedown事件
document.onmousedown = function(evt){// button属性是2 就代表是鼠标右键 if(evt.button == 2){alert('监听到鼠标右键被按下')evt.preventDefault() // 该方法将通知 Web 浏览器不要执行与事件关联的默认动作return false;}
}// 监听用户工具栏调起开发者工具，判断浏览器的可视高度和宽度是否有改变，有改变则处理，
// 判断是否开了开发者工具不太合理。
var h = window.innerHeight, w = window.innerWidth;
window.onresize = function(){alert('改变了窗口高度')
}// hook代码
(function() {//严谨模式 检查所有错误'use strict';// hook 鼠标选择Object.defineProperty(document, 'onselectstart', {set: function(val) {console.log('Hook捕获到选中设置->', val);return val;}});// hook 鼠标右键Object.defineProperty(document,'oncontextmenu',{set:function(evt){console.log("检测到右键点击");return evt}});
})();

webpack hook 半自动扣

//在加载器后面下断点  执行下面代码
// 这里的f 替换成需要导出的函数名
window.zhiyuan = f;
window.wbpk_ = "";
window.isz = false;
f = function(r){if(window.isz){// e[r]里的e 是加载器里的call那里window.wbpk_ = window.wbpk_ + r.toString()+":"+(e[r]+"")+ ",";}return window.zhiyuan(r);
}//在你要的方法加载前下断点 执行 window.isz=true
//在你要的方法运行后代码处下断点  执行 window.wbpk_  拿到所有代码  注意后面有个逗号function o(t) {if (n[t])return n[t].exports;var i = n[t] = {i: t,l: !1,exports: {}};console.log("被调用的 >>> ", e[t].toString());//  这里进行拼接，bb变量需要在全局定义一下 // t 是模块名， e[t] 是模块对应的函数， 也就是key：value形式bb += `"${t}":${e[t].toString()},`return e[t].call(i.exports, i, i.exports, o),i.l = !0,i.exports
}
bz = o;

如果只是调用模块，不用模块里面的方法, 那么直接获取调用模块的时候所有加载过的模块，进行拼接

document下的createElement()方法的hook,查看创建了什么元素

(function() {'use strict'var _createElement = document.createElement.bind(document);document.createElement = function(elm){// 这里做判断 是否创建了script这个元素    if(elm == 'body'){debugger;}return _createElement(elm);}})();

之前我不知道我用的是 var _createElement = document.createElement 导致一直报错 Uncaught TypeError: Illegal invocation
原来是需要绑定一下对象 var _createElement = document.createElement.bind(document);

headers hook 当header中包含Authorization时，则插入断点


var code = function(){
var org = window.XMLHttpRequest.prototype.setRequestHeader;
window.XMLHttpRequest.prototype.setRequestHeader = function(key,value){if(key=='Authorization'){debugger;}return org.apply(this,arguments);
}
}
var script = document.createElement('script');
script.textContent = '(' + code + ')()';
(document.head||document.documentElement).appendChild(script);
script.parentNode.removeChild(script);

请求hook 当请求的url里包含MmEwMD时，则插入断点


var code = function(){
var open = window.XMLHttpRequest.prototype.open;
window.XMLHttpRequest.prototype.open = function (method, url, async){if (url.indexOf("MmEwMD")>-1){debugger;}return open.apply(this, arguments);
};
}
var script = document.createElement('script');
script.textContent = '(' + code + ')()';
(document.head||document.documentElement).appendChild(script);
script.parentNode.removeChild(script);

docuemnt.getElementById 以及value属性的hook

// docuemnt.getElementById 以及value属性的hook,可以参考完成innerHTML的hook
document.getElementById = function(id) {var value = document.querySelector('#' + id).value;console.log('DOM操作 id: ', id)try {Object.defineProperty(document.querySelector('#'+ id), 'value', {get: function() {console.log('getting -', id, 'value -', value);return value;},set: function(val) {console.log('setting -', id, 'value -', val)value = val;}})} catch (e) {console.log('---------华丽的分割线--------')}return document.querySelector('#' + id);
}

过debugger 阿布牛逼


function Closure(injectFunction) {return function() {if (!arguments.length)return injectFunction.apply(this, arguments)arguments[arguments.length - 1] = arguments[arguments.length - 1].replace(/debugger/g, "");return injectFunction.apply(this, arguments)}
}var oldFunctionConstructor = window.Function.prototype.constructor;
window.Function.prototype.constructor = Closure(oldFunctionConstructor)
//fix native function
window.Function.prototype.constructor.toString = oldFunctionConstructor.toString.bind(oldFunctionConstructor);var oldFunction = Function;
window.Function = Closure(oldFunction)
//fix native function
window.Function.toString = oldFunction.toString.bind(oldFunction);var oldEval = eval;
window.eval = Closure(oldEval)
//fix native function
window.eval.toString = oldEval.toString.bind(oldEval);// hook GeneratorFunction
var oldGeneratorFunctionConstructor = Object.getPrototypeOf(function*() {}).constructor
var newGeneratorFunctionConstructor = Closure(oldGeneratorFunctionConstructor)
newGeneratorFunctionConstructor.toString = oldGeneratorFunctionConstructor.toString.bind(oldGeneratorFunctionConstructor);
Object.defineProperty(oldGeneratorFunctionConstructor.prototype, "constructor", {value: newGeneratorFunctionConstructor,writable: false,configurable: true
})// hook Async Function
var oldAsyncFunctionConstructor = Object.getPrototypeOf(async function() {}).constructor
var newAsyncFunctionConstructor = Closure(oldAsyncFunctionConstructor)
newAsyncFunctionConstructor.toString = oldAsyncFunctionConstructor.toString.bind(oldAsyncFunctionConstructor);
Object.defineProperty(oldAsyncFunctionConstructor.prototype, "constructor", {value: newAsyncFunctionConstructor,writable: false,configurable: true
})// hook dom
var oldSetAttribute = window.Element.prototype.setAttribute;
window.Element.prototype.setAttribute = function(name, value) {if (typeof value == "string")value = value.replace(/debugger/g, "")// 向上调用oldSetAttribute.call(this, name, value)
}
;
var oldContentWindow = Object.getOwnPropertyDescriptor(HTMLIFrameElement.prototype, "contentWindow").get
Object.defineProperty(window.HTMLIFrameElement.prototype, "contentWindow", {get() {var newV = oldContentWindow.call(this)if (!newV.inject) {newV.inject = true;core.call(newV, globalConfig, newV);}return newV}
})

过debugger—1 constructor 构造器构造出来的

var _constructor = constructor;
Function.prototype.constructor = function(s) {if (s == "debugger") {console.log(s);return null;}return _constructor(s);
}

过debugger—2 eval的

(function() {'use strict';var eval_ = window.eval;window.eval = function(x) {eval_(x.replace("debugger;", "  ; "));};window.eval.toString = eval_.toString;
}
)();

JSON HOOK

var my_stringify = JSON.stringify;
JSON.stringify = function (params) {//这里可以添加其他逻辑比如 debuggerconsole.log("json_stringify params:",params);return my_stringify(params);
};var my_parse = JSON.parse;
JSON.parse = function (params) {//这里可以添加其他逻辑比如 debuggerconsole.log("json_parse params:",params);return my_parse(params);
};

对象属性hook 属性自定义


(function(){// 严格模式，检查所有错误'use strict'// document 为要hook的对象 ,属性是cookieObject.defineProperty(document,'cookie',{// hook set方法也就是赋值的方法，get就是获取的方法set: function(val){// 这样就可以快速给下面这个代码行下断点，从而快速定位设置cookie的代码debugger;  // 在此处自动断下console.log('Hook捕获到set-cookie ->',val);return val;}})
})();

cookies - 1 （不是万能的有些时候hook不到自己插入debugger）

var cookie_cache = document.cookie;Object.defineProperty(document, 'cookie', {get: function() {console.log('Getting cookie');return cookie_cache;},set: function(val) {console.log("Seting cookie",val);var cookie = val.split(";")[0];var ncookie = cookie.split("=");var flag = false;var cache = cookie_cache.split("; ");cache = cache.map(function(a){if (a.split("=")[0] === ncookie[0]){flag = true;return cookie;}return a;})}
})

cookies - 2


var code = function(){var org = document.cookie.__lookupSetter__('cookie');document.__defineSetter__("cookie",function(cookie){if(cookie.indexOf('TSdc75a61a')>-1){debugger;}org = cookie;});document.__defineGetter__("cookie",function(){return org;});
}
var script = document.createElement('script');
script.textContent = '(' + code + ')()';
(document.head||document.documentElement).appendChild(script);
script.parentNode.removeChild(script);// 当cookie中匹配到了 TSdc75a61a， 则插入断点。

window attr


// 定义hook属性
var window_flag_1 = "_t";
var window_flag_2 = "ccc";var key_value_map = {};
var window_value = window[window_flag_1];// hook
Object.defineProperty(window, window_flag_1, {get: function(){console.log("Getting",window,window_flag_1,"=",window_value);//debuggerreturn window_value},set: function(val) {console.log("Setting",window, window_flag_1, "=",val);//debuggerwindow_value = val;key_value_map[window[window_flag_1]] = window_flag_1;set_obj_attr(window[window_flag_1],window_flag_2);},});function set_obj_attr(obj,attr){var obj_attr_value = obj[attr];Object.defineProperty(obj,attr, {get: function() {console.log("Getting", key_value_map[obj],attr, "=", obj_attr_value);//debuggerreturn obj_attr_value;},set: function(val){console.log("Setting", key_value_map[obj], attr, "=", val);//debuggerobj_attr_value = val;},});
}

eval/Function


window.__cr_eval = window.eval;
var myeval = function(src) {// src就是eval运行后 最终返回的值console.log(src);console.log("========= eval end ===========");return window.__cr_eval;
}var _myeval = myeval.bind(null);
_myeval.toString = window.__cr_eval.toString;
Object.defineProperty(window, 'eval',{value: _myeval});window._cr_fun = window.Function
var myfun = function(){var args = Array.prototype.slice.call(arguments, 0, -1).join(","), src = arguments[arguments.lenght -1];console.log(src);console.log("======== Function end =============");return window._cr_fun.apply(this, arguments)
}myfun.toString = function() {return window._cr_fun + ""} //小花招，这里防止代码里检测原生函数
Object.defineProperty(window, "Function",{value: myfun})

eval 取返回值

_eval = eval;
eval = (res)=>{res1 = res // 返回值return _eval(res)
}eval(xxxxxxxxx)

eval proxy代理 https://segmentfault.com/a/1190000025154230

// 代理eval
eval = new Proxy(eval,{// 如果代理的是函数 查看调用 就用apply属性// 第二个参数是prop 这里用不上 因为是属性，eval只是个函数 所以prop为undefind 这里设置了下划线 ——apply: (target,_,arg)=>{// target 是被代理的函数或对象名称，当前是[Function: eval]// arg是传进来的参数,返回的是个列表console.log(arg[0])}
})//  eval执行的时候就会被代理拦截
// 传入的如果是字符串 那么只会返回字符串，这里是匿名函数 直接执行 return了内容
eval((function(){return "我是包子 自己执行了"})()
)// 结果 ： 我是包子 自己执行了

websocket hook

 // 1、webcoket 一般都是json数据格式传输，那么发生之前需要JSON.stringify  
var my_stringify = JSON.stringify;
JSON.stringify = function (params) {//这里可以添加其他逻辑比如 debuggerconsole.log("json_stringify params:",params);return my_stringify(params);
};var my_parse = JSON.parse;
JSON.parse = function (params) {//这里可以添加其他逻辑比如 debuggerconsole.log("json_parse params:",params);return my_parse(params);
};// 2  webScoket 绑定在windows对象，上，根据浏览器的不同，websokcet名字可能不一样 
//chrome window.WebSocket  firfox window.MozWebSocket;
window._WebSocket = window.WebSocket;// hook send
window._WebSocket.prototype.send = function (data) {console.info("Hook WebSocket", data);return this.send(data)
}Object.defineProperty(window, "WebSocket",{value: WebSocket})

hook 正则 —— 1

(function () {var _RegExp = RegExp;RegExp = function (pattern, modifiers) {console.log("Some codes are setting regexp");debugger;if (modifiers) {return _RegExp(pattern, modifiers);} else {return _RegExp(pattern);}};RegExp.toString = function () {return "function setInterval() { [native code] }"};
})();

hook 正则 2 加在sojson头部过字符串格式化检测

(function() {var _RegExp = RegExp;RegExp = function(pattern, modifiers) {if (pattern == decodeURIComponent("%5Cw%2B%20*%5C(%5C)%20*%7B%5Cw%2B%20*%5B'%7C%22%5D.%2B%5B'%7C%22%5D%3B%3F%20*%7D") || pattern == decodeURIComponent("function%20*%5C(%20*%5C)") || pattern == decodeURIComponent("%5C%2B%5C%2B%20*(%3F%3A_0x(%3F%3A%5Ba-f0-9%5D)%7B4%2C6%7D%7C(%3F%3A%5Cb%7C%5Cd)%5Ba-z0-9%5D%7B1%2C4%7D(%3F%3A%5Cb%7C%5Cd))") || pattern == decodeURIComponent("(%5C%5C%5Bx%7Cu%5D(%5Cw)%7B2%2C4%7D)%2B")) {pattern = '.*?';console.log("发现sojson检测特征，已帮您处理。")}if (modifiers) {console.log("疑似最后一个检测...已帮您处理。")console.log("已通过全部检测，请手动处理debugger后尽情调试吧！")return _RegExp(pattern, modifiers);} else {return _RegExp(pattern);}};RegExp.toString = function() {return _RegExp.toString();};
}
)();

hook canvas (定位图片生成的地方)

(function() {'use strict';let create_element = document.createElement.bind(doument);document.createElement = function (_element) {console.log("create_element:",_element);if (_element === "canvas") {debugger;}return create_element(_element);}
})();

setInterval 定时器

(function() {setInterval_ = setInterval;console.log("原函数已被重命名为setInterval_")setInterval = function() {};setInterval.toString = function() {console.log("有函数正在检测setInterval是否被hook");return setInterval_.toString();};
}
)();

setInterval 循环清除定时器

for(var i = 0; i < 9999999; i++) window.clearInterval(i)

console.log 检测例子（不让你输出调试）

var oldConsole = ["debug", "error", "info", "log", "warn", "dir", "dirxml", "table", "trace", "group", "groupCollapsed", "groupEnd", "clear", "count", "countReset", "assert", "profile", "profileEnd", "time", "timeLog", "timeEnd", "timeStamp", "context", "memory"].map(key=>{var old = console[key];console[key] = function() {};console[key].toString = old.toString.bind(old)return old;
}
)

检测函数是否被hook例子

if (window.eval == 'native code') {console.log('发现eval函数被hook了 开始死循环');
}

模拟sleep函数,实现Date的时间增加

var saf, saf_class;
!function() {var v = console.log, n = Function, t = "prototype", e = "toString", o = n[e], i = Symbol("(".concat("", ")_", (Math.random() + "")[e](36))), c = function() {try {return "function" == typeof this && this[i] || o.call(this);} catch (n) {return v("[ERROR toString]", this + ''),"";}};function r(n, t, e) {Object.defineProperty(n, t, {enumerable: !1,configurable: !0,writable: !0,value: e});}delete n[t][e],r(n[t], e, c),r(n[t][e], i, "function toString() { [native code] }"),saf = function(n, m) {return r(n, i, `function ${m ? m : n.name || ""}() { [native code] }`),n;};
}();var v_Date = Date
var sleep_number = 0
function sleep(number) {sleep_number += number;Date = function(_Date) {var bind = Function.bind;var unbind = bind.bind(bind);function instantiate(constructor, args) {return new (unbind(constructor, null).apply(null, args));}var names = Object.getOwnPropertyNames(_Date);for (var i = 0; i < names.length; i++) {if (names[i]in Date)continue;var desc = Object.getOwnPropertyDescriptor(_Date, names[i]);Object.defineProperty(Date, names[i], desc);}function Date() {var date = instantiate(_Date, [v_Date.now() + sleep_number]);// 固定返回某一个时间点return date;}Date.prototype = _Date.prototypereturn saf(Date);}(v_Date);
}

hook Array.concat

BaseArrayConcat = Array.prototype.concathook_concat = function(a){console.log('concat-hook:', JSON.stringify(a))let result = BaseArrayConcat.apply(this, a);result.concat = hook_concat;return result
}
ce.concat = hook_concat

控制台检测

var _0x383ee0 = new Date();var _0x465be6 = 0;_0x383ee0["toString"] = function () {_0x465be6++;console.log(arguments[0])if (_0x465be6 == 2) {return "";}
};console["log"](_0x383ee0);