hacktricks/mobile-pentesting/android-app-pentesting/frida-tutorial
2024-07-19 11:24:45 +00:00
..
frida-tutorial-1.md Translated ['macos-hardening/macos-security-and-privilege-escalation/mac 2024-07-19 11:24:45 +00:00
frida-tutorial-2.md Translated ['binary-exploitation/basic-stack-binary-exploitation-methodo 2024-07-18 22:08:20 +00:00
objection-tutorial.md Translated ['macos-hardening/macos-security-and-privilege-escalation/mac 2024-07-19 11:24:45 +00:00
owaspuncrackable-1.md Translated ['macos-hardening/macos-security-and-privilege-escalation/mac 2024-07-19 11:24:45 +00:00
README.md Translated ['macos-hardening/macos-security-and-privilege-escalation/mac 2024-07-19 05:18:31 +00:00

Frida 教程

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安装

安装 frida 工具

pip install frida-tools
pip install frida

在安卓设备上下载并安装frida server (下载最新版本).
一行命令以root模式重启adb连接到它上传frida-server给予执行权限并在后台运行

{% code overflow="wrap" %}

adb root; adb connect localhost:6000; sleep 1; adb push frida-server /data/local/tmp/; adb shell "chmod 755 /data/local/tmp/frida-server"; adb shell "/data/local/tmp/frida-server &"

{% endcode %}

检查它是否正常工作

frida-ps -U #List packages and processes
frida-ps -U | grep -i <part_of_the_package_name> #Get all the package name

教程

教程 1

来源: https://medium.com/infosec-adventures/introduction-to-frida-5a3f51595ca1
APK: https://github.com/t0thkr1s/frida-demo/releases
源代码: https://github.com/t0thkr1s/frida-demo

请遵循链接阅读

教程 2

来源: https://11x256.github.io/Frida-hooking-android-part-2/ (第 2、3 和 4 部分)
APKs 和源代码: https://github.com/11x256/frida-android-examples

请遵循链接阅读。

教程 3

来源: https://joshspicer.com/android-frida-1
APK: https://github.com/OWASP/owasp-mstg/blob/master/Crackmes/Android/Level_01/UnCrackable-Level1.apk

请遵循链接阅读

您可以在这里找到更多精彩的 Frida 脚本: https://codeshare.frida.re/

快速示例

从命令行调用 Frida

frida-ps -U

#Basic frida hooking
frida -l disableRoot.js -f owasp.mstg.uncrackable1

#Hooking before starting the app
frida -U --no-pause -l disableRoot.js -f owasp.mstg.uncrackable1
#The --no-pause and -f options allow the app to be spawned automatically,
#frozen so that the instrumentation can occur, and the automatically
#continue execution with our modified code.

基本 Python 脚本

import frida, sys

jscode = open(sys.argv[0]).read()
process = frida.get_usb_device().attach('infosecadventures.fridademo')
script = process.create_script(jscode)
print('[ * ] Running Frida Demo application')
script.load()
sys.stdin.read()

Hooking functions without parameters

钩住类 sg.vantagepoint.a.c 的函数 a()

Java.perform(function () {
;  rootcheck1.a.overload().implementation = function() {
rootcheck1.a.overload().implementation = function() {
send("sg.vantagepoint.a.c.a()Z   Root check 1 HIT!  su.exists()");
return false;
};
});

Hook java exit()

var sysexit = Java.use("java.lang.System");
sysexit.exit.overload("int").implementation = function(var_0) {
send("java.lang.System.exit(I)V  // We avoid exiting the application  :)");
};

Hook MainActivity .onStart().onCreate()

var mainactivity = Java.use("sg.vantagepoint.uncrackable1.MainActivity");
mainactivity.onStart.overload().implementation = function() {
send("MainActivity.onStart() HIT!!!");
var ret = this.onStart.overload().call(this);
};
mainactivity.onCreate.overload("android.os.Bundle").implementation = function(var_0) {
send("MainActivity.onCreate() HIT!!!");
var ret = this.onCreate.overload("android.os.Bundle").call(this,var_0);
};

Hook android .onCreate()

var activity = Java.use("android.app.Activity");
activity.onCreate.overload("android.os.Bundle").implementation = function(var_0) {
send("Activity HIT!!!");
var ret = this.onCreate.overload("android.os.Bundle").call(this,var_0);
};

Hooking functions with parameters and retrieving the value

钩住一个解密函数。打印输入,调用原始函数解密输入,最后打印明文数据:

function getString(data){
var ret = "";
for (var i=0; i < data.length; i++){
ret += data[i].toString();
}
return ret
}
var aes_decrypt = Java.use("sg.vantagepoint.a.a");
aes_decrypt.a.overload("[B","[B").implementation = function(var_0,var_1) {
send("sg.vantagepoint.a.a.a([B[B)[B   doFinal(enc)  // AES/ECB/PKCS7Padding");
send("Key       : " + getString(var_0));
send("Encrypted : " + getString(var_1));
var ret = this.a.overload("[B","[B").call(this,var_0,var_1);
send("Decrypted : " + ret);

var flag = "";
for (var i=0; i < ret.length; i++){
flag += String.fromCharCode(ret[i]);
}
send("Decrypted flag: " + flag);
return ret; //[B
};

Hooking functions and calling them with our input

钩住一个接收字符串的函数,并用另一个字符串调用它(来自 here

var string_class = Java.use("java.lang.String"); // get a JS wrapper for java's String class

my_class.fun.overload("java.lang.String").implementation = function(x){ //hooking the new function
var my_string = string_class.$new("My TeSt String#####"); //creating a new String by using `new` operator
console.log("Original arg: " +x );
var ret =  this.fun(my_string); // calling the original function with the new String, and putting its return value in ret variable
console.log("Return value: "+ret);
return ret;
};

获取已创建类的对象

如果您想提取已创建对象的某个属性,可以使用这个。

在这个例子中,您将看到如何获取类 my_activity 的对象,以及如何调用函数 .secret(),该函数将打印对象的私有属性:

Java.choose("com.example.a11x256.frida_test.my_activity" , {
onMatch : function(instance){ //This function will be called for every instance found by frida
console.log("Found instance: "+instance);
console.log("Result of secret func: " + instance.secret());
},
onComplete:function(){}
});

其他 Frida 教程

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{% embed url="https://go.intigriti.com/hacktricks" %}

{% hint style="success" %} 学习与实践 AWS 黑客技术:HackTricks 培训 AWS 红队专家 (ARTE)
学习与实践 GCP 黑客技术:HackTricks 培训 GCP 红队专家 (GRTE)

支持 HackTricks
{% endhint %}