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README.md
com.saurik.substrate_0.9.4010.apk
substrate-api.jar
substrate-bless.jar
substrate.h

README.md

CydiaSubstrate_OpenSource

reverse and recover the code logic of Cydia Substrate on Android

Cydia Substrate is a hook library for android and ios device It's easy to anaylysis an app with this tool, while not Open-Source I'm doing reverse-engineering on it, and will soon recover it's main code

relevant files:

substrate.h //c++ header file used in JNI layer hook

substrate-api.jar //import package used in java layer hook

substrate-bless.jar //used to remove properties(private,protect,etc...) in java layer hook com.saurik.substrate.apk//host apk, we can only develop plugin for it to install package

\lib\armeabi \lib\x86 //real operation for hooking

libAndroidBootstrap0.so //used to fake /system/lib/liblog.so and pull up libAndroidLoader.so each java process need to load liblog.so

libAndroidLoader.so //used to pull all *.cy.so

libAndroidCydia.cy.so //still in research

libDalvikLoader.cy.so //still in research

libsubstrate.so //provide jni layer hook low-level api

libsubstrate-dvm.so //provide java layer hook low-level api

libSubstrateJNI.so //used by substrate.apk to do c++ layer work

libSubstrateRun.so //used by substrate.apk to do patch/unpatch/link/unlink operation

update-binary.so //used by substrate.apk to recover patch/link operation