Dumping Your own L3 CDM with Android Studio

[Karoolus]

The instruction at first page is:

Open Google Chrome and go to

https://bitmovin.com/demos/drm or another site using drm.
Can I use another Browser as FireFox?
Thank you

if the video plays in the browser and it shows that it is using Widevine (checkbox on the page is ticked) then you should be fine

[Naughty]

Everything went smoothly but I'm stuck at dump_keys.py, can someone please guide here ??

[Attachment 75178 - Click to enlarge]

[linkinp]

The instruction at first page is:

Open Google Chrome and go to

https://bitmovin.com/demos/drm or another site using drm.
Can I use another Browser as FireFox?
Thank you

if the video plays in the browser and it shows that it is using Widevine (checkbox on the page is ticked) then you should be fine

Thank you, I have 16GB DDR4 RAM, i5 10400F with SSD NvMe2 install Android Studio but still pretty damn slow when running Android Studio for mobile interface using. Is it because my PC is low-end? If I'm apt to upgrade, which hardware should I upgrade?
Thank you

[Karoolus]

Everything went smoothly but I'm stuck at dump_keys.py, can someone please guide here ??

[Attachment 75178 - Click to enlarge]

This has been mentioned at least 20 times in this thread and several others. Use the search button.

The instruction at first page is:

Open Google Chrome and go to

https://bitmovin.com/demos/drm or another site using drm.
Can I use another Browser as FireFox?
Thank you

if the video plays in the browser and it shows that it is using Widevine (checkbox on the page is ticked) then you should be fine

Thank you, I have 16GB DDR4 RAM, i5 10400F with SSD NvMe2 install Android Studio but still pretty damn slow when running Android Studio for mobile interface using. Is it because my PC is low-end? If I'm apt to upgrade, which hardware should I upgrade?
Thank you

your CPU might be a bit slow, as Android Studio emulator is effectively a VM that is running on your system. If you don't succeed in dumping a CDM, you can find a couple in my signature as well

[linkinp]

Thank you Mr. Karoolus
Honestly I know nothing about DRM, CDM...something like that. The only CMD command I could use is Yt-dlp for downloading Youtube videos. it's much easier than this Dumping. I already post a thread about downloading at Plus.RTL.de but currently still having no clue to conduct the downloading. It takes a lot of difficult step to get the key, the link to download the video. https://forum.videohelp.com/threads/412390-Download-movie-from-Plus-rtl-de
If the command is easy as Yt-Dlp for downloading Youtube videos, it would be really simple for me. We simply need the URL link and then type some casual command as: N_m3u8DL-RE -M format=mkv URL link...
I'm sorry for my dump technical knowledge, I don't understand anything from your invaluable signature tool.
Really appreciate.

[cobramostar]

is an android still needed to download the CDM key, I don't understand if I look at the firefox browser on linux, why would the CDM key download be done via an android device?
I would like an explanation

[Karoolus]

is an android still needed to download the CDM key, I don't understand if I look at the firefox browser on linux, why would the CDM key download be done via an android device?
I would like an explanation

Read the (other) stickies, you are not in the right place to be asking these questions.

[cobramostar]

for Android 9.0

pip install frida==16.0.8

pip install frida-tools==12.0.4

Found existing installation: frida-tools 12.3.0
Uninstalling frida-tools-12.3.0:
Successfully uninstalled frida-tools-12.3.0

Successfully installed frida-tools-12.0.4

dumper-main

pip3 install -r requirements.txt

Successfully installed pycryptodome-3.19.0

must be regenerated with protoc >= 3.19.0.
1. Downgrade the protobuf package to 3.20.x or lower.
2. Set PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION=python (but this will use pure-Python parsing and will be much slower).

pip install protobuf==3.19.0

~\dumper-main\key_dumps\Android Emulator 5554\private_keys\xxxx\xxxxxxxx

client_id.bin
private_key.pem

[RobbieDS]

[Attachment 75320 - Click to enlarge]

houston we have a problem

C:\Users\RobbieDS>pip install frida
Requirement already satisfied: frida in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (16.1.4)
Requirement already satisfied: typing-extensions in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (from frida) (4.8.0)

C:\Users\RobbieDS>pip install frida-tools
Requirement already satisfied: frida-tools in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (12.2.1)
Requirement already satisfied: colorama<1.0.0,>=0.2.7 in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (from frida-tools) (0.4.3)
Requirement already satisfied: frida<17.0.0,>=16.0.9 in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (from frida-tools) (16.1.4)
Requirement already satisfied: prompt-toolkit<4.0.0,>=2.0.0 in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (from frida-tools) (3.0.39)
Requirement already satisfied: pygments<3.0.0,>=2.0.2 in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (from frida-tools) (2.16.1)
Requirement already satisfied: typing-extensions in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (from frida<17.0.0,>=16.0.9->frida-tools) (4.8.0)
Requirement already satisfied: wcwidth in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (from prompt-toolkit<4.0.0,>=2.0.0->frida-tools) (0.2.6)

[Karoolus]

[Attachment 75320 - Click to enlarge]

houston we have a problem

C:\Users\RobbieDS>pip install frida
Requirement already satisfied: frida in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (16.1.4)
Requirement already satisfied: typing-extensions in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (from frida) (4.8.0)

C:\Users\RobbieDS>pip install frida-tools
Requirement already satisfied: frida-tools in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (12.2.1)
Requirement already satisfied: colorama<1.0.0,>=0.2.7 in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (from frida-tools) (0.4.3)
Requirement already satisfied: frida<17.0.0,>=16.0.9 in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (from frida-tools) (16.1.4)
Requirement already satisfied: prompt-toolkit<4.0.0,>=2.0.0 in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (from frida-tools) (3.0.39)
Requirement already satisfied: pygments<3.0.0,>=2.0.2 in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (from frida-tools) (2.16.1)
Requirement already satisfied: typing-extensions in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (from frida<17.0.0,>=16.0.9->frida-tools) (4.8.0)
Requirement already satisfied: wcwidth in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (from prompt-toolkit<4.0.0,>=2.0.0->frida-tools) (0.2.6)

You need to run the commands one by one, not dump them all in there at the same time

[cobramostar]

[Attachment 75320 - Click to enlarge]

houston we have a problem

C:\Users\RobbieDS>pip install frida
Requirement already satisfied: frida in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (16.1.4)
Requirement already satisfied: typing-extensions in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (from frida) (4.8.0)

C:\Users\RobbieDS>pip install frida-tools
Requirement already satisfied: frida-tools in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (12.2.1)
Requirement already satisfied: colorama<1.0.0,>=0.2.7 in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (from frida-tools) (0.4.3)
Requirement already satisfied: frida<17.0.0,>=16.0.9 in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (from frida-tools) (16.1.4)
Requirement already satisfied: prompt-toolkit<4.0.0,>=2.0.0 in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (from frida-tools) (3.0.39)
Requirement already satisfied: pygments<3.0.0,>=2.0.2 in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (from frida-tools) (2.16.1)
Requirement already satisfied: typing-extensions in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (from frida<17.0.0,>=16.0.9->frida-tools) (4.8.0)
Requirement already satisfied: wcwidth in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (from prompt-toolkit<4.0.0,>=2.0.0->frida-tools) (0.2.6)

if you see my post i doo all with version 9.0 android and i install all version frida like first post

[RobbieDS]

[Attachment 75320 - Click to enlarge]

houston we have a problem

C:\Users\RobbieDS>pip install frida
Requirement already satisfied: frida in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (16.1.4)
Requirement already satisfied: typing-extensions in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (from frida) (4.8.0)

C:\Users\RobbieDS>pip install frida-tools
Requirement already satisfied: frida-tools in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (12.2.1)
Requirement already satisfied: colorama<1.0.0,>=0.2.7 in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (from frida-tools) (0.4.3)
Requirement already satisfied: frida<17.0.0,>=16.0.9 in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (from frida-tools) (16.1.4)
Requirement already satisfied: prompt-toolkit<4.0.0,>=2.0.0 in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (from frida-tools) (3.0.39)
Requirement already satisfied: pygments<3.0.0,>=2.0.2 in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (from frida-tools) (2.16.1)
Requirement already satisfied: typing-extensions in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (from frida<17.0.0,>=16.0.9->frida-tools) (4.8.0)
Requirement already satisfied: wcwidth in c:\users\robbieds\appdata\local\programs\python\py thon38\lib\site-packages (from prompt-toolkit<4.0.0,>=2.0.0->frida-tools) (0.2.6)

You need to run the commands one by one, not dump them all in there at the same time

Thank you very much, that's exactly what it was. such a stupid mistake. extracted keydumps

[peterb999]

[/QUOTE]

Thank you very much, that's exactly what it was. such a stupid mistake. extracted keydumps[/QUOTE]

Well done, nice one. It's always good when it works.

[RobbieDS]

I extrapolated from the Bitmovin site, the problem is that when I go to the sites that interest me, Chrome doesn't start the video player and consequently I can't extrapolate my keys

[Karoolus]

I extrapolated from the Bitmovin site, the problem is that when I go to the sites that interest me, Chrome doesn't start the video player and consequently I can't extrapolate my keys

You only have to dump your CDM once and then use other methods to use that CDM to get keys for videos.
Read the stickies again, you don't seem to grasp how this works.

[awanawe]

I've followed all the steps but I can't play DRM-protected content on any virtual device. I've tried several devices and websites, but the content plays back encrypted. Any idea?

EDIT: I downgraded my Android version to Pie and now it works!!

[dmcss]

nothing happened after that even though i played the drm video

[Attachment 75552 - Click to enlarge]

[awanawe]

nothing happened after that even though i played the drm video

[Attachment 75552 - Click to enlarge]

Same happening to me with Android 10+. I need to get a CDM from a higher Android version but I can't manage to get the keys dumped.

[An0nym0usAn0n]

I've followed all the steps but I can't play DRM-protected content on any virtual device. I've tried several devices and websites, but the content plays back encrypted. Any idea?

EDIT: I downgraded my Android version to Pie and now it works!!

Can you please tell me which phone you selected, and where you found a download for Pie? I've looked everywhere and can't find a simple download.

Nevermind, FINALLY figured it out.

Android version MUST be Version 9 (Pie), and it MUST be x86_64 not x86 which is recommended. I used the Pixel 6.

Secondly you must download the x86_64 version of frida server, and you must have the same version of frida installed via shell, which you can check with "pip show frida", version number must match server.

I finally got the keys to export, but I still have one question, which is my keys are not named what the guide I'm following recommends. I see in the thread one person says just to rename them, but will that work?

Mine are named client_id and private_key.pem

So just rename like below?
client_id.bin -> device_client_id_blob
private_key.pem -> device_private_key

[awanawe]

I've followed all the steps but I can't play DRM-protected content on any virtual device. I've tried several devices and websites, but the content plays back encrypted. Any idea?

EDIT: I downgraded my Android version to Pie and now it works!!

Can you please tell me which phone you selected, and where you found a download for Pie? I've looked everywhere and can't find a simple download.

Nevermind, FINALLY figured it out.

Android version MUST be Version 9 (Pie), and it MUST be x86_64 not x86 which is recommended. I used the Pixel 6.

Secondly you must download the x86_64 version of frida server, and you must have the same version of frida installed via shell, which you can check with "pip show frida", version number must match server.

I finally got the keys to export, but I still have one question, which is my keys are not named what the guide I'm following recommends. I see in the thread one person says just to rename them, but will that work?

Mine are named client_id and private_key.pem

So just rename like below?
client_id.bin -> device_client_id_blob
private_key.pem -> device_private_key

You don't need to rename them, they work the same.

[levaculik]

Is anyone else having a problem with Chrome ???

[mon00064]

Anybody getting a syntax error when trying to run frida server?

generic_x86_arm:/ # /data/local/tmp/frida
/data/local/tmp/frida[1]: ./0000755000175100001730000000000014345743344010567: not found
/data/local/tmp/frida[2]: acct: not found
/data/local/tmp/frida[3]: acct: not found
/data/local/tmp/frida[4]: acct: not found
/data/local/tmp/frida[5]: acct: not found
/data/local/tmp/frida[6]: acct: not found
/data/local/tmp/frida[7]: acct/: can't execute: Is a directory
/data/local/tmp/frida[14]: syntax error: unexpected '('
1|generic_x86_arm:/ #

Edit: was not using Frida server from Frida releases. Everything is working correctly

[IrishMarty]

Thanks for this. Still works great.

[vagner]

[Attachment 76082 - Click to enlarge]
I did the whole procedure but mine is generating like this... could someone help me please.

I used Android 9 Android Studio for MAC
frida-server-16.0.2-android-arm64
frida 16.0.8
frida-tools 12.0.4
pycryptodome 3.19.0

[Magicians]

[Attachment 76082 - Click to enlarge]
I did the whole procedure but mine is generating like this... could someone help me please.

I used Android 9 Android Studio for MAC
frida-server-16.0.2-android-arm64
frida 16.0.8
frida-tools 12.0.4
pycryptodome 3.19.0

make sure you are using the correct android version.
I don't think the MAC cpu supports the android version needed
Android version Version 9 x86_64

[vagner]

[Attachment 76082 - Click to enlarge]
I did the whole procedure but mine is generating like this... could someone help me please.

I used Android 9 Android Studio for MAC
frida-server-16.0.2-android-arm64
frida 16.0.8
frida-tools 12.0.4
pycryptodome 3.19.0

I fixed using this tutorial

https://github.com/wvdumper/dumper/issues/31

Working for me now

[roderiq_amb]

Getting stuck repeatedly over here:


C:\Users\Marcus\AppData\Local\Android\Sdk\platform-tools>adb.exe shell
generic_x86_arm:/ $ su
generic_x86_arm:/ # mv /sdcard/frida-server-16.1.10-android-x86 /data/local/tmp
mv: /data/local/tmp/frida-server-16.1.10-android-x86: Text file busy

[white_snake]

Getting stuck repeatedly over here:


C:\Users\Marcus\AppData\Local\Android\Sdk\platform-tools>adb.exe shell
generic_x86_arm:/ $ su
generic_x86_arm:/ # mv /sdcard/frida-server-16.1.10-android-x86 /data/local/tmp
mv: /data/local/tmp/frida-server-16.1.10-android-x86: Text file busy

Apparently your frida server might be already running: https://stackoverflow.com/a/16764967

Open your task manager and kill every instance of adb.exe

[roderiq_amb]

Getting stuck repeatedly over here:


C:\Users\Marcus\AppData\Local\Android\Sdk\platform-tools>adb.exe shell
generic_x86_arm:/ $ su
generic_x86_arm:/ # mv /sdcard/frida-server-16.1.10-android-x86 /data/local/tmp
mv: /data/local/tmp/frida-server-16.1.10-android-x86: Text file busy

Apparently your frida server might be already running: https://stackoverflow.com/a/16764967

Open your task manager and kill every instance of adb.exe

Dang, silly me...
Instantly worked dude, thanks a bunch!
Later, wasn't able to generate dump_keys.py but a quick pip install of pycryptodome got it fixed.
Finally got the key_dumps folder with the two necessary files.

[white_snake]

Getting stuck repeatedly over here:


C:\Users\Marcus\AppData\Local\Android\Sdk\platform-tools>adb.exe shell
generic_x86_arm:/ $ su
generic_x86_arm:/ # mv /sdcard/frida-server-16.1.10-android-x86 /data/local/tmp
mv: /data/local/tmp/frida-server-16.1.10-android-x86: Text file busy

Apparently your frida server might be already running: https://stackoverflow.com/a/16764967

Open your task manager and kill every instance of adb.exe

Dang, silly me...
Instantly worked dude, thanks a bunch!
Later, wasn't able to generate dump_keys.py but a quick pip install of pycryptodome got it fixed.
Finally got the key_dumps folder with the two necessary files.

Np, glad you got it working