giacomoferretti/odex-patcher

Run arbitrary code by patching OAT files

Hi there! I'm Giacomo Ferretti 👋

Website • Email

Repositories

Here are my favorite personal projects, grouped by category.

🤖 Android

Name	Description	Stars	Forks	Language
Odex Patcher	Run arbitrary code by patching OAT files
Paranoid Deobfuscator	Deobfuscate "paranoid" protected apps
Janus Toolkit	A collection of tools for the Janus exploit [CVE-2017-13156]

🌐 Browser Extension

Name	Description	Stars	Forks	Language
Forks Diff Counter for GitHub	A Chrome and Firefox extension to show commits ahead and behind in the "Forks" page.

📶 Wi-Fi

Name	Description	Stars	Forks	Language
Chopper	A channel hopper for monitor mode written in C.
Chopper	A channel hopper for monitor mode written in Go.

📶 NFC

Name	Description	Stars	Forks	Language
NFC SRIX Tools (unmaintained)	A collection of tools to read/write NFC ST SRI512 and SRIX4K tags.

🎓 University

Name	Description	Stars	Forks	Language
UNIMI Tools	A collection of tools for Università degli Studi di Milano Statale (UNIMI)
Maledetta TreEst (Android)	Mobile Computing 2022 project - Maledetta TreEst (Android)
Maledetta TreEst (React Native)	Mobile Computing 2022 project - Maledetta TreEst (React Native)
Spotify GCMO	Applicazioni Web e Cloud 2022 project - Spotify GCMO

⚡ Recent Activity

1. ⭐ Starred Genymobile/scrcpy
2. ❗️ Opened issue #17 in giacomoferretti/paranoid-deobfuscator
3. ⭐ Starred LSPosed/LSParanoid
4. ⭐ Starred pmndrs/zustand
5. ⭐ Starred remotion-dev/remotion

Last Updated: Thursday, May 30th, 2024, 6:13:47 AM

📈 GitHub Stats

⭐ Star History

odex-patcher's Issues

MultiDex support

If you try to patch a multidex application, the app won't work. I'm currently working on a fix.

Checksum mismatch

I ain't sure how to use this app. I checked the source and tried it like I understood.

I made an sample apk (just shows a text view) and installed in my device.

Then I modified the app source to show some other text. Compiled and pushed to my device storage.

I tried to patch the installed (old app) (target) with the new apk file (input) using the odex patcher app.

I checked the log. I have seen 'dex checksum mismatch. Expected: some value. Actual: some value'.

Is it the right way to use the app?

Does this app replacing the old dex with the new dex ref in the oat/vdex file? Or is it working in some other way?

[Android 9] Odex and Vdex files generated, but the CRC32 verification fails.

It does not work on Android P. Although odex and vdex are generated, the crc32 verification fails. It is useless to close selinux.

A suggestion

Will it be possible to create a separate library for odex patching? Because i need to add the feature in my app for modifying odex with specific injections. It will be useful if you develop it as a library as well :').

PS : I know i can manually move the necessary files into the project, but its somewhat annoying as i would need to update them at every update done by you :')

Fix abi issue

Compile odex and vdex per the instruction set app uses.
Example :
When an app contains arm7 binaries, it compiles odex and vdex with arm7 instruction set.
I am on Arm64 device and trying to do odex patching an app which only contains arm7 binaries. I patched the odex but seems it didnt work, i troubleshooted a bit and found that there was a created a new folder at oat dir, arm64.
But it should compile odex vdex as arm7 not arm64.
Kindly check out the issue

Sort App List by App Name

Also, if possible add a search textbox as well, when we have many apps installed it's a pain.

Anyway, thanks for this amazing tool, working on my android 10 just like a charm

Automatically add dummy dex files to match the number of dex files in target app.

The patched ODEX dex count need to match the original dex count. We can simply add dummy files to correctly generate the ODEX file.

MultiDex patching not working on Android 4.4

On Android 4.4 only the first classes.dex is optimized. The secondary dex files, like classes2.dex, are optimized later using the MultiDex support library and they are store under /data/data/packagename/code_cache/secondary_dexes/packagename.apk.classesN.zip for every file. After extracting the single dex files, the MultiDex support library optimize them and saves them under /data/data/packagename/code_cache/secondary_dexes/packagename.apk.classesN.dex.

Check compatibility between patch and target app (activities, services, etc...)

Alert the user if the patch and the target app are not compatible by checking the AndroidManifest.xml of the target app and the classes inside classes.dex of the patch.

Add backup and restore feature

Add support for .dex files

You should be able to choose a DEX file instead of only APK/ZIP files.

Crashes

The app crashes on Android 13 i know it's not tested on Android 13 before.
but i hope new update to fix the crash problem it crashes because Oat version (225).
odexpatcher_2023-07-22_19-06-21.txt
crash-me-hexile-odexpatcher-22-07_18-29-11.zip
i attached the logs from odex patcher and crash log from logfox app hope you can solve this problem

Use RandomAccessFile instead of ByteArray

I don't want to load 50MB+ into a ByteArray. It consumes memory and that's unnecessary.