# Android APK Checklist If you want to **know** about my **latest modifications**/**additions** or you have **any suggestion for HackTricks or PEASS**, **join the** [**💬**](https://emojipedia.org/speech-balloon/) [**PEASS & HackTricks telegram group here**](https://t.me/peass), or **follow me on Twitter** [🐦](https://emojipedia.org/bird/)[**@carlospolopm**](https://twitter.com/carlospolopm)**.**\ If you want to **share some tricks with the community** you can also submit **pull requests** to **\*\*\[**) **\*\*that will be reflected in this book.**\ **Don't forget to** give ⭐ on the github\*\* to motivate me to continue developing this book. ## [Learn Android fundamentals](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#2-android-application-fundamentals) * [ ] [Basics](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#fundamentals-review) * [ ] [Dalvik & Smali](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#dalvik--smali) * [ ] [Entry points](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#application-entry-points) * [ ] [Activities](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#launcher-activity) * [ ] [URL Schemes](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#url-schemes) * [ ] [Content Providers](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#services) * [ ] [Services](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#services-1) * [ ] [Broadcast Receivers](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#broadcast-receivers) * [ ] [Intents](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#intents) * [ ] [Intent Filter](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#intent-filter) * [ ] [Other components](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#other-app-components) * [ ] [How to use ADB](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#adb-android-debug-bridge) * [ ] [How to modify Smali](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#smali) ## [Static Analysis](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#static-analysis) * [ ] Check for the use of [obfuscation](/githubimport/mobile-apps-pentesting/android-checklist.md#some-obfuscation-deobfuscation-information), checks for noting if the mobile was rooted, if an emulator is being used and anti-tampering checks. [Read this for more info](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#other-checks). * [ ] Sensitive applications (like bank apps) should check if the mobile is rooted and should actuate in consequence. * [ ] Search for [interesting strings](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#looking-for-interesting-info) (passwords, URLs, API, encryption, backdoors, tokens, Bluetooth uuids...). * [ ] Special attention to [firebase ](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#firebase)APIs. * [ ] [Read the manifest:](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#basic-understanding-of-the-application-manifest-xml) * [ ] Check if the application is in debug mode and try to "exploit" it * [ ] Check if the APK allows backups * [ ] Exported Activities * [ ] Content Providers * [ ] Exposed services * [ ] Broadcast Receivers * [ ] URL Schemes * [ ] Is the application s[aving data insecurely internally or externally](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#insecure-data-storage)? * [ ] Is there any [password hard coded or saved in disk](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#poorkeymanagementprocesses)? Is the app [using insecurely crypto algorithms](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#useofinsecureandordeprecatedalgorithms)? * [ ] All the libraries compiled using the PIE flag? * [ ] Don't forget that there is a bunch of[ static Android Analyzers](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#automatic-analysis) that can help you a lot during this phase. ## [Dynamic Analysis](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#dynamic-analysis) * [ ] Prepare the environment ([online](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#online-dynamic-analysis), [local VM or physical](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#local-dynamic-analysis)) * [ ] Is there any [unintended data leakage](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#unintended-data-leakage) (logging, copy/paste, crash logs)? * [ ] [Confidential information being saved in SQLite dbs](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#sqlite-dbs)? * [ ] [Exploitable exposed Activities](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#exploiting-exported-activities-authorisation-bypass)? * [ ] [Exploitable Content Providers](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#exploiting-content-providers-accessing-and-manipulating-sensitive-information)? * [ ] [Exploitable exposed Services](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#exploiting-services)? * [ ] [Exploitable Broadcast Receivers](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#exploiting-broadcast-receivers)? * [ ] Is the application [transmitting information in clear text/using weak algorithms](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#insufficient-transport-layer-protection)? is a MitM possible? * [ ] [Inspect HTTP/HTTPS traffic](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#inspecting-http-traffic) * [ ] This one is really important, because if you can capture the HTTP traffic you can search for common Web vulnerabilities (Hacktricks has a lot of information about Web vulns). * [ ] Check for possible [Android Client Side Injections](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#android-client-side-injections-and-others) (probably some static code analysis will help here) * [ ] [Frida](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#frida): Just Frida, use it to obtain interesting dynamic data from the application (maybe some passwords...) ## Some obfuscation/Deobfuscation information * [ ] [Read here](/githubimport/mobile-apps-pentesting/android-app-pentesting.md#obfuscating-deobfuscating-code) If you want to **know** about my **latest modifications**/**additions** or you have **any suggestion for HackTricks or PEASS**, **join the** [**💬**](https://emojipedia.org/speech-balloon/) [**PEASS & HackTricks telegram group here**](https://t.me/peass), or **follow me on Twitter** [🐦](https://emojipedia.org/bird/)[**@carlospolopm**](https://twitter.com/carlospolopm)**.**\ If you want to **share some tricks with the community** you can also submit **pull requests** to **\*\*\[**) **\*\*that will be reflected in this book.**\ **Don't forget to** give ⭐ on the github\*\* to motivate me to continue developing this book. ![](/files/-MaoHV-bFJR-K2MoUNkN) ​[**Buy me a coffee here**](https://www.buymeacoffee.com/carlospolop)\*\*\*\* --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. 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