Spyware Reverse Engineering
Android App Structure
Tools
Android Permissions
Please reference this permissions overview ↗ for descriptions of the listed permissions that are considered dangerous.
Important Android Components
Activities A key component of most Android apps, activities can handle unexpected changes, device rotation, and data saving
Services Run in the background of an app to perform long-running tasks without a user interface
Broadcast receivers Respond to system-wide broadcast announcements, known as Intents, to perform functions like alerting the user when the battery is low
Intents A frequently used component that allows users to call other app components, activities, or applications on the phone
Fragments A reusable portion of an app's UI that manages its own layout, lifecycle, and input events
Lists A key UI element that represents a range of information
RecyclerView A commonly used Android component for displaying a list of items
Android architecture The foundation of the Android mobile operating system, which is essential for creating high-quality and scalable apps
Jetpack Compose A tool that simplifies the process of building complex UIs, saving developers time and reducing errors
Android Services and Receivers
Services
Services are critical application components that can perform long-time operations. For example, Spotify services can play music in the background even if the app is closed.
Broadcast Receivers
They respond to broadcast messages from another application or system, for example, a low battery message, or a no wifi connection message. They can respond to these types of messages. They can receive messages from other apps. They have various types, such as SMS broadcast receiver, Battery state, etc. You can create your own custom broadcast receiver.
Decompiling an APK
Open the .apk file with jadx-gui by right clicking on the apk file and selecting the open with option.
Install Jadx Using
The same thing can be achieved using https://mobsf.live/
REFERENCES
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