JavaScript常用的Hook脚本
JavaScript常用的Hook脚本
本文Hook脚本 来自 包子
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 debugger
console.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 debugger
console.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cookie
Object.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);
//debugger
return window_value
},
set: function(val) {
console.log("Setting",window, window_flag_1, "=",val);
//debugger
window_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);
//debugger
return obj_attr_value;
},
set: function(val){
console.log("Setting", key_value_map[obj], attr, "=", val);
//debugger
obj_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 debugger
console.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 debugger
console.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.prototype
return saf(Date);
}(v_Date);
}
hook Array.concat
BaseArrayConcat = Array.prototype.concat
hook_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);
