mirror of
https://github.com/carlospolop/hacktricks
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215 lines
9.6 KiB
Markdown
215 lines
9.6 KiB
Markdown
# Frida Tutorial
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{% hint style="success" %}
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Aprenda e pratique Hacking AWS:<img src="/.gitbook/assets/arte.png" alt="" data-size="line">[**HackTricks Training AWS Red Team Expert (ARTE)**](https://training.hacktricks.xyz/courses/arte)<img src="/.gitbook/assets/arte.png" alt="" data-size="line">\
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Aprenda e pratique Hacking GCP: <img src="/.gitbook/assets/grte.png" alt="" data-size="line">[**HackTricks Training GCP Red Team Expert (GRTE)**<img src="/.gitbook/assets/grte.png" alt="" data-size="line">](https://training.hacktricks.xyz/courses/grte)
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<details>
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<summary>Support HackTricks</summary>
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* Confira os [**planos de assinatura**](https://github.com/sponsors/carlospolop)!
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* **Junte-se ao** 💬 [**grupo do Discord**](https://discord.gg/hRep4RUj7f) ou ao [**grupo do telegram**](https://t.me/peass) ou **siga**-nos no **Twitter** 🐦 [**@hacktricks\_live**](https://twitter.com/hacktricks\_live)**.**
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* **Compartilhe truques de hacking enviando PRs para o** [**HackTricks**](https://github.com/carlospolop/hacktricks) e [**HackTricks Cloud**](https://github.com/carlospolop/hacktricks-cloud) repositórios do github.
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</details>
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{% endhint %}
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<figure><img src="../../../.gitbook/assets/i3.png" alt=""><figcaption></figcaption></figure>
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**Dica de bug bounty**: **inscreva-se** no **Intigriti**, uma plataforma premium de **bug bounty criada por hackers, para hackers**! Junte-se a nós em [**https://go.intigriti.com/hacktricks**](https://go.intigriti.com/hacktricks) hoje e comece a ganhar recompensas de até **$100,000**!
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{% embed url="https://go.intigriti.com/hacktricks" %}
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## Instalação
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Instale **frida tools**:
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```bash
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pip install frida-tools
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pip install frida
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```
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**Baixe e instale** no Android o **frida server** ([Baixe a versão mais recente](https://github.com/frida/frida/releases)).\
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Um comando para reiniciar o adb em modo root, conectar-se a ele, fazer upload do frida-server, dar permissões de execução e executá-lo em segundo plano:
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{% code overflow="wrap" %}
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```bash
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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 &"
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```
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{% endcode %}
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**Verifique** se está **funcionando**:
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```bash
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frida-ps -U #List packages and processes
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frida-ps -U | grep -i <part_of_the_package_name> #Get all the package name
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```
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## Tutoriais
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### [Tutorial 1](frida-tutorial-1.md)
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**De**: [https://medium.com/infosec-adventures/introduction-to-frida-5a3f51595ca1](https://medium.com/infosec-adventures/introduction-to-frida-5a3f51595ca1)\
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**APK**: [https://github.com/t0thkr1s/frida-demo/releases](https://github.com/t0thkr1s/frida-demo/releases)\
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**Código Fonte**: [https://github.com/t0thkr1s/frida-demo](https://github.com/t0thkr1s/frida-demo)
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**Siga o [link para ler](frida-tutorial-1.md).**
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### [Tutorial 2](frida-tutorial-2.md)
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**De**: [https://11x256.github.io/Frida-hooking-android-part-2/](https://11x256.github.io/Frida-hooking-android-part-2/) (Partes 2, 3 & 4)\
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**APKs e Código fonte**: [https://github.com/11x256/frida-android-examples](https://github.com/11x256/frida-android-examples)
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**Siga o [link para ler.](frida-tutorial-2.md)**
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### [Tutorial 3](owaspuncrackable-1.md)
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**De**: [https://joshspicer.com/android-frida-1](https://joshspicer.com/android-frida-1)\
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**APK**: [https://github.com/OWASP/owasp-mstg/blob/master/Crackmes/Android/Level\_01/UnCrackable-Level1.apk](https://github.com/OWASP/owasp-mstg/blob/master/Crackmes/Android/Level\_01/UnCrackable-Level1.apk)
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**Siga o [link para ler](owaspuncrackable-1.md).**
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**Você pode encontrar mais scripts incríveis do Frida aqui:** [**https://codeshare.frida.re/**](https://codeshare.frida.re)
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## Exemplos Rápidos
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### Chamando o Frida a partir da linha de comando
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```bash
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frida-ps -U
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#Basic frida hooking
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frida -l disableRoot.js -f owasp.mstg.uncrackable1
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#Hooking before starting the app
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frida -U --no-pause -l disableRoot.js -f owasp.mstg.uncrackable1
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#The --no-pause and -f options allow the app to be spawned automatically,
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#frozen so that the instrumentation can occur, and the automatically
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#continue execution with our modified code.
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```
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### Script Básico em Python
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```python
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import frida, sys
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jscode = open(sys.argv[0]).read()
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process = frida.get_usb_device().attach('infosecadventures.fridademo')
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script = process.create_script(jscode)
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print('[ * ] Running Frida Demo application')
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script.load()
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sys.stdin.read()
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```
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### Hooking functions without parameters
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Hook a função `a()` da classe `sg.vantagepoint.a.c`
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```javascript
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Java.perform(function () {
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; rootcheck1.a.overload().implementation = function() {
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rootcheck1.a.overload().implementation = function() {
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send("sg.vantagepoint.a.c.a()Z Root check 1 HIT! su.exists()");
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return false;
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};
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});
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```
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Hook java `exit()`
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```javascript
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var sysexit = Java.use("java.lang.System");
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sysexit.exit.overload("int").implementation = function(var_0) {
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send("java.lang.System.exit(I)V // We avoid exiting the application :)");
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};
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```
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Hook MainActivity `.onStart()` & `.onCreate()`
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```javascript
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var mainactivity = Java.use("sg.vantagepoint.uncrackable1.MainActivity");
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mainactivity.onStart.overload().implementation = function() {
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send("MainActivity.onStart() HIT!!!");
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var ret = this.onStart.overload().call(this);
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};
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mainactivity.onCreate.overload("android.os.Bundle").implementation = function(var_0) {
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send("MainActivity.onCreate() HIT!!!");
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var ret = this.onCreate.overload("android.os.Bundle").call(this,var_0);
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};
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```
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Hook android `.onCreate()`
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```javascript
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var activity = Java.use("android.app.Activity");
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activity.onCreate.overload("android.os.Bundle").implementation = function(var_0) {
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send("Activity HIT!!!");
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var ret = this.onCreate.overload("android.os.Bundle").call(this,var_0);
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};
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```
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### Hooking functions with parameters and retrieving the value
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Hooking uma função de decriptação. Imprima a entrada, chame a função original para decriptar a entrada e, finalmente, imprima os dados em texto claro:
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```javascript
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function getString(data){
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var ret = "";
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for (var i=0; i < data.length; i++){
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ret += data[i].toString();
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}
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return ret
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}
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var aes_decrypt = Java.use("sg.vantagepoint.a.a");
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aes_decrypt.a.overload("[B","[B").implementation = function(var_0,var_1) {
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send("sg.vantagepoint.a.a.a([B[B)[B doFinal(enc) // AES/ECB/PKCS7Padding");
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send("Key : " + getString(var_0));
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send("Encrypted : " + getString(var_1));
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var ret = this.a.overload("[B","[B").call(this,var_0,var_1);
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send("Decrypted : " + ret);
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var flag = "";
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for (var i=0; i < ret.length; i++){
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flag += String.fromCharCode(ret[i]);
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}
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send("Decrypted flag: " + flag);
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return ret; //[B
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};
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```
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### Hooking functions and calling them with our input
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Hook uma função que recebe uma string e chame-a com outra string (de [aqui](https://11x256.github.io/Frida-hooking-android-part-2/))
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```javascript
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var string_class = Java.use("java.lang.String"); // get a JS wrapper for java's String class
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my_class.fun.overload("java.lang.String").implementation = function(x){ //hooking the new function
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var my_string = string_class.$new("My TeSt String#####"); //creating a new String by using `new` operator
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console.log("Original arg: " +x );
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var ret = this.fun(my_string); // calling the original function with the new String, and putting its return value in ret variable
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console.log("Return value: "+ret);
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return ret;
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};
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```
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### Obtendo um objeto já criado de uma classe
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Se você quiser extrair algum atributo de um objeto criado, pode usar isso.
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Neste exemplo, você verá como obter o objeto da classe my\_activity e como chamar a função .secret() que imprimirá um atributo privado do objeto:
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```javascript
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Java.choose("com.example.a11x256.frida_test.my_activity" , {
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onMatch : function(instance){ //This function will be called for every instance found by frida
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console.log("Found instance: "+instance);
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console.log("Result of secret func: " + instance.secret());
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},
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onComplete:function(){}
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});
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```
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## Outros tutoriais Frida
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* [https://github.com/DERE-ad2001/Frida-Labs](https://github.com/DERE-ad2001/Frida-Labs)
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* [Parte 1 da série de blogs sobre Uso Avançado do Frida: Bibliotecas de Criptografia IOS](https://8ksec.io/advanced-frida-usage-part-1-ios-encryption-libraries-8ksec-blogs/)
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<figure><img src="../../../.gitbook/assets/i3.png" alt=""><figcaption></figcaption></figure>
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**Dica de bug bounty**: **inscreva-se** no **Intigriti**, uma plataforma premium de **bug bounty criada por hackers, para hackers**! Junte-se a nós em [**https://go.intigriti.com/hacktricks**](https://go.intigriti.com/hacktricks) hoje e comece a ganhar recompensas de até **$100,000**!
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{% embed url="https://go.intigriti.com/hacktricks" %}
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{% hint style="success" %}
|
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Aprenda e pratique Hacking AWS:<img src="/.gitbook/assets/arte.png" alt="" data-size="line">[**HackTricks Training AWS Red Team Expert (ARTE)**](https://training.hacktricks.xyz/courses/arte)<img src="/.gitbook/assets/arte.png" alt="" data-size="line">\
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Aprenda e pratique Hacking GCP: <img src="/.gitbook/assets/grte.png" alt="" data-size="line">[**HackTricks Training GCP Red Team Expert (GRTE)**<img src="/.gitbook/assets/grte.png" alt="" data-size="line">](https://training.hacktricks.xyz/courses/grte)
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<details>
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<summary>Support HackTricks</summary>
|
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* Confira os [**planos de assinatura**](https://github.com/sponsors/carlospolop)!
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* **Junte-se ao** 💬 [**grupo do Discord**](https://discord.gg/hRep4RUj7f) ou ao [**grupo do telegram**](https://t.me/peass) ou **siga**-nos no **Twitter** 🐦 [**@hacktricks\_live**](https://twitter.com/hacktricks\_live)**.**
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* **Compartilhe truques de hacking enviando PRs para os repositórios do** [**HackTricks**](https://github.com/carlospolop/hacktricks) e [**HackTricks Cloud**](https://github.com/carlospolop/hacktricks-cloud).
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</details>
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{% endhint %}
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