Reversing

Firmware reversing - intro

March 11, 2024 • 8 min read

In computing, firmware is a specific class of computer software that provides the low-level control for a device’s specific hardware. Firmware, such as the BIOS of a personal computer, may contain basic functions of a device, and may provide hardware abstraction services to higher-level software such as operating systems. For less complex devices, firmware may act as the device’s complete operating system, performing all control, monitoring and data manipulation functions. Typical examples of devices containing firmware are embedded systems (running embedded software), home and personal-use appliances, computers, and computer peripherals.

Android APK reverse engineering in 7 small steps

February 2, 2024 • 1 min read

android reversing guides

Step 1: install required tools 1 2 3 4 $ sudo apt install adb apktool openjdk-11-jdk-headless zipalign apksigner # replace apktool with new version from https://github.com/iBotPeaches/Apktool/releases $ sudo mv /usr/share/apktool/apktool.jar /usr/share/apktool/apktool.jar.original $ sudo mv ~/Downloads/apktool_2.7.0.jar /usr/share/apktool/apktool.jar Step 2: retrieve the APK file 1 2 3 4 5 6 # start by finding the name of the app $ adb shell pm list packages | grep <APP_NAME> # find path of the app $ adb shell pm path <APP> # and pull the APK file $ adb pull <PATH> .