Awesome
JNIAnalyzer
This Ghidra extension contains various scripts that assists in analyzing Android NDK applications.
A Binary Ninja version of this plugin is also available
How to install the extension
- Clone this repository (
git clone https://github.com/Ayrx/JNIAnalyzer.git
) - In the cloned repository folder, use the command
gradle -PGHIDRA_INSTALL_DIR=<YOUR GHIDRA INSTALLATION DIRECTORY>
; specifying your Ghidra installation directory - In Ghidra, at the Projects window, click
File -> Install Extensions...
and chose the.zip
file present in theJNIAnalyzer/dist
folder - Restart Ghidra
Scripts
JNIAnalyzer.java
This script uses the JADX decompiler to extract the function signature of all native methods in an APK file and applies the signature to all matching fnuctions in the binary.
Running the JNIAnalyzer.java
extension script will overwrite any function
return types, parameter names and parameter types that was already in place.
If you want the script to skip a specific function, annotate it with
JNIAnalyzer:IGNORE
in the comment.
Write-up: Ghidra Plugin: JNIAnalyzer
TraceRegisterNatives.java
This script parses the output of trace_registernatives applies the results to the Ghidra project.
Write up coming soon.
RegisterNatives.java (Experimental)
This script looks for calls to RegisterNatives
within a function and sets
the JNINativeMethod
structure type in the appropriate locations within the
binary. Ghidra's P-Code API is used to find references to RegisterNatives
as
the function is usually resolved at runtime.
This script is currently very much experimental / use at your own risk.