mbcp/mbbpatch
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MBCPApp Patcher for MB Bank Android (Flutter), written from scratch in bash.
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README.md

MBCPApp Patcher for MB Bank

Lightweight "open source" tool for patching MB Bank Flutter (Android) app, mostly written with Bash script, mainly made by Cuynu and MBCPApp Author (anonymous). https://gitlab.com/cuynu/mbbpatch

Introduction

  • MBCP (MBBank CorePatch) are closed source before, and many people don't like it because worry about security & privacy issues.
  • In order to support community and make MBCP open source, We spend days to rewritten whole MBCPApp patches in Bash and open it so you can patch it yourself on (Bare metal, not WSL) Linux environment (where we used to patch MBCP)

Requirements

  • Actual Linux environment (not on virtualized environment like WSL) and any compatible distro (Arch Linux based recommended)
  • Little knowledge about bash commands
  • git installed
  • java or jdk-openjdk installed

Usage

  • Go to home directory, then clone repository first
cd ~
git clone https://gitlab.com/cuynu/mbbpatch.git
cd ~/mbbpatch/MBCPApp

  • Since MB Bank are now using split APK (*.apks) since v5.3 (135) so you have to convert it to regular APK first

  • Get MB Bank apks from eMBee APKs and copy it to ~/mbbpatch/MBCPApp/mbapk

  • Run bash mbcpapp.sh script

cd ~/mbbpatch/MBCPApp
./mbcpapp.sh
  • Download necessary tools first with Download tools function (otherwise other function with unlikely to work!)
  • Convert apks to apk first using Convert apks to apk function
  • Unpack apk with Unpack apk function
  • Check if MBShield present on unpacked APK with Check MBShield function (if MBShield present then you have to extract assets from Android device with Extract assets [ROOT])
  • After extracted assets (if MBShield present), use Patch App function and select the patches you want to apply to unpacked app
  • When done, use Repack APK function to recompile apk (You must have Android device connected with debugging mode enabled!)
  • Output will be MBCP_Flutter.zip on ~/mbbpatch/MBCPApp/mbcpapp_apk/ and mbsig.apk will be copied to Android internal storage
  • Use MT Manager, put all files inside MBCP_Flutter.zip to mbsig.apk and untick AUTO SIGN
  • Install it to your device (requires MBCP Helper / CorePatch ) due to unsigned APK
  • Profit :)

TODO

  • fully implement Bypass signature check function

External projects

  • MBCPApp Patcher project won't be possible without those external projects !!
  • apktool
  • APKEditor
  • MT Manager to handle APK signature scheme v2/v3