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cdm-tools-dumperv2
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cdm-tools-dumperv2/README.md

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Dumper

Dumper is a Frida script to dump L3 CDMs from any Android device.

** IMPORTANT **

The function parameters can differ between CDM versions. The default is [4] but you may have to change this for your specific version.

  • CDM_VERSION can be retrieved using a DRM Info app.

Requirements

Use pip to install the dependencies:

pip3 install -r requirements.txt

Usage

  • Enable USB debugging
  • Start frida-server on the device
  • Execute dump_keys.py
  • Start streaming some DRM-protected content

Known Working Versions

  • Android 9
    • CDM 14.0.0
  • Android 10
    • CDM 15.0.0
  • Android 11
    • CDM 16.0.0
  • Android 12
    • CDM 16.1.0

Temporary disabling L1 to use L3 instead

A few phone brands let us use the L1 keybox even after unlocking the bootloader (like Xiaomi). In this case, installation of a Magisk module called liboemcrypto-disabler is necessary.

Credits

Thanks to the original author of the code.