Dumping Your own L3 CDM with Android Studio

[cedric8528]

the terminal gives you the answer...


[Attachment 71543 - Click to enlarge]

[Anonymous9875434]

I followed the steps but nothing

[Attachment 71544 - Click to enlarge]

[Anonymous9875434]

I followed the steps but nothing

[Attachment 71544 - Click to enlarge]

any help ??

[Karoolus]

what version Android did you use?
did you get the frida server running?

[Anonymous9875434]

what version Android did you use?
did you get the frida server running?

13
yes

[Anonymous9875434]

when I installed Android 7

[Attachment 71545 - Click to enlarge]

[Karoolus]

the tutorial speaks of Android 9 Pie. I can confirm that it works perfect on 9, as I have dumped hundres of CDM from Android Studio using this method.

Create an AVD using Android 9
Download the x86 frida server

rename the file to frida

adb push frida /sdcard/
adb shell
su
cp /sdcard/frida /data/local/tmp
chmod +x /data/local/tmp/frida
/data/local/tmp/frida


run dumper.py
open bitmovin in chrome

[Anonymous9875434]

too bro
[Attachment 71550 - Click to enlarge]

[Anonymous9875434]

I don't know where are these problems come

[Attachment 71551 - Click to enlarge]

[Anonymous9875434]

68358[/ATTACH]
you just have to rename the 2 files respectively in :
device_client_id_blob
device_private_key

What After this step ?!
After I get The 2 files

[Anonymous9875434]

the tutorial speaks of android 9 pie. I can confirm that it works perfect on 9, as i have dumped hundres of cdm from android studio using this method.

Create an avd using android 9
download the x86 frida server

rename the file to frida

adb push frida /sdcard/
adb shell
su
cp /sdcard/frida /data/local/tmp
chmod +x /data/local/tmp/frida
/data/local/tmp/frida


run dumper.py
open bitmovin in chrome

rsvp

[Anonymous9875434]

You don't have an Android Device or don't want to buy one to get the two magic files to decrypt your video with drm?

No problem! you can use Android Studio available for Windows, Linux and Mac.

It's totally free...You just need a computer with good processor and 12Go of ram.....
It's not impossible to run it with a little pc, but obviously, it will be more slow and you will have to take your time to launch your virtual Device and to use it.


https://developer.android.com/studio


[Attachment 68344 - Click to enlarge]

We Want to create a Virtual Android Device ....So click on "Create Device"
I have not tested with all Android Devices but the first three work fine


[Attachment 68345 - Click to enlarge]

Choose for example "Pixel 6" and click on "next"



[Attachment 68346 - Click to enlarge]

Here again I have not test all the Version of the OS but Android Pie works fine.
Download the Android Version you want for your virtual device, choose it and click on "next"



[Attachment 68347 - Click to enlarge]

Click On "Finish"



[Attachment 68348 - Click to enlarge]


Your phone is going to be created...It make takes a long time to be created and to boot...



[Attachment 68349 - Click to enlarge]


Your beautilful and free Phone is ready !


Let's play with the terminal....
Open a Command Prompt in Windows.

pip install frida

pip install frida-tools

[Attachment 68369 - Click to enlarge]


Now Go to https://github.com/frida/frida/releases

Download The Frida Server for Androïd. and put it on C:\Users\yourname\AppData\Local\Android\Sdk\platfo rm-tools

Verify that the frida-server version you download is the same that the one you have install via pip.


you can show my frida-server file on the screenshot below...

[Attachment 68350 - Click to enlarge]


put yourself in the right directory and type

adb.exe devices

We can see that our virtual device is recongnized.


[Attachment 68351 - Click to enlarge]

Put the Frida-server file we have downloaded In our virtual phone

adb.exe push frida-server-16.0.2-android-x86 /sdcard

[Attachment 68352 - Click to enlarge]

So let's communicate with our Virtual device
Put the Frida server in the good directory of our device
Give permission to execute the file
Execute frida-server!

adb.exe shell
su
mv /sdcard/frida-server_yourversion /data/local/tmp
chmod  +x /data/local/tmp/frida-server-yourversion
/data/local/tmp/frida-server-16.0.2-android-x86

[Attachment 68356 - Click to enlarge]


Keep this Terminal Open !


Now Download Dumper-main on Github

https://github.com/wvdumper/dumper

Open a new command prompt


Place yourself in the Directory (cd /....) of dumper main and launch dump_keys

Python dump_keys.py

[Attachment 68354 - Click to enlarge]


[Attachment 68355 - Click to enlarge]

Keep this Terminal Open !

We have now 2 Commands prompt open.

Go back to our phone

Open Google Chrome and go to

https://bitmovin.com/demos/drm or another site using drm.


[Attachment 68357 - Click to enlarge]

As we can see, the video on Bitmovin is launch and dumper-main do his job.

Let's have a look in dumper-main directory.

You will find a directory (private-keys) containing the 2 files


[Attachment 68358 - Click to enlarge]


you just have to rename the 2 files respectively in :
device_client_id_blob
device_private_key


If you want another couple of fresh L3 cdm, you just have to create a new device and do the same process.

Please questions and problems in this thread and not via PM...so as to help all people who comes from Google, Mars Planet or somewhere else to find what they search

Thank you to everyone on this forum who taught me so much

What next bro I get CDM (2 files) and renamed them
What next please ?

[Karoolus]

too bro
[Attachment 71550 - Click to enlarge]

I don't know where are these problems come

[Attachment 71551 - Click to enlarge]

68358[/ATTACH]
you just have to rename the 2 files respectively in :
device_client_id_blob
device_private_key

What After this step ?!
After I get The 2 files

the tutorial speaks of android 9 pie. I can confirm that it works perfect on 9, as i have dumped hundres of cdm from android studio using this method.

Create an avd using android 9
download the x86 frida server

rename the file to frida

adb push frida /sdcard/
adb shell
su
cp /sdcard/frida /data/local/tmp
chmod +x /data/local/tmp/frida
/data/local/tmp/frida


run dumper.py
open bitmovin in chrome

rsvp

Alright, first of all, you need to calm your tits.. This is not a paid service and you are not entitles to demand support, people are helping you in their own time and spamming a thread won't get you results. be respectful and have patience.


second: you end up with two files. That's your CDM. The fact that you don't understand this yourself, tells me you need to do a lot more research before you are able to start getting keys and decrypting videos. Read the forum, ask questions when needed and read some more while you WAIT FOR ANSWERS

[Anonymous9875434]

You don't have an Android Device or don't want to buy one to get the two magic files to decrypt your video with drm?



you just have to rename the 2 files respectively in :
device_client_id_blob
device_private_key

Bro sorry but I already got the 2 files and downloaded wks keys
and put headers and tried to get the key but no use
My video is in website and require login if u can help please help
I searched a lot and all members here insulted me ||

[cedric8528]

So you have many Problems :

First you are a spammer opening many threads...and you expect a quick answer like a hotline...

Second I think you are a scammer who try to rob videos (to resell them after) from people who work hard to make their lessons on your Egyptian site.

Third... stop PM and Learn Python by yourself because you need special script to steal videos...

[Anonymous9875434]

So you have many Problems :

First you are a spammer opening many threads...and you expect a quick answer like a hotline...

Second I think you are a scammer who try to rob videos (to resell them after) from people who work hard to make their lessons on your Egyptian site.

Third... stop PM and Learn Python by yourself because you need special script to steal videos...

no at all

[euphonic]

to delate...

[Gotcha!]

Hello everyone, I am new to this forum. I just wanted to thank cedric8528 for his comprehensive guide Your contribution and A_n_g_e_l_a's has really helped me in my journey to obtaining my own keys Today, I can successfully report that I have decrypted my very first media file that was obtained from VDOCipher So, cedric8528's method actually works even with that website!

[somnambulist]

I wish to also thank cedric8528 for this handy guide. When cdrm-project.com went down recently, I finally got the boot up the backside I so sorely needed to dump my own CDM key. My workflow is now back up and running thanks to this guide.

I haven't read through the whole thread, so apologies if I'm covering old ground, but I thought I'd add some of my notes here in case anyone gets stuck or encounters similar issues as I did.

1. First, in order to get a rooted AVD (phone), I had to select an image without the Google Play or Google API option -- not sure if this has been pointed out already
2. Also, on my Ubuntu system, I had to install some additional Python modules to get the dumper working correctly, summarised in this one-liner:
   

   pip install frida frida-tools pycryptodome protobuf==3.19 xmltodict

3. Last but not least, in Linux, the CRLF end-of-line characters in some of the downloaded Python scripts may need to be converted to LF

All in all, fairly minor glitches in my case, which were overcome easily. Thanks again for all the hard work and a very clear guide.

[engomingo]

[Attachment 72339 - Click to enlarge]

Why is it giving an error in the last command? Is there anyone who can help?

[Karoolus]

[Attachment 72339 - Click to enlarge]

Why is it giving an error in the last command? Is there anyone who can help?

your mv command is wrong

You need a space between the source and destination
All subsequent commands failed to execute because the file was never moved

[engomingo]

[Attachment 72339 - Click to enlarge]

Why is it giving an error in the last command? Is there anyone who can help?

your mv command is wrong

You need a space between the source and destination
All subsequent commands failed to execute because the file was never moved

[Attachment 72340 - Click to enlarge]

this time i am getting this error

[Karoolus]

[Attachment 72339 - Click to enlarge]

Why is it giving an error in the last command? Is there anyone who can help?

your mv command is wrong

You need a space between the source and destination
All subsequent commands failed to execute because the file was never moved

[Attachment 72340 - Click to enlarge]

this time i am getting this error

are you sure the file is on the sdcard? did you do the "adb push" command as well?

[engomingo]

[Attachment 72339 - Click to enlarge]

Why is it giving an error in the last command? Is there anyone who can help?

your mv command is wrong

You need a space between the source and destination
All subsequent commands failed to execute because the file was never moved

[Attachment 72340 - Click to enlarge]

this time i am getting this error

are you sure the file is on the sdcard? did you do the "adb push" command as well?

[Attachment 72341 - Click to enlarge]

yes

[somnambulist]

[Attachment 72339 - Click to enlarge]

Why is it giving an error in the last command? Is there anyone who can help?

your mv command is wrong

You need a space between the source and destination
All subsequent commands failed to execute because the file was never moved

[Attachment 72340 - Click to enlarge]

this time i am getting this error

Please run the following command to help us troubleshoot.

ls -al /data/local/tmp/frida-*

[engomingo]

[Attachment 72339 - Click to enlarge]

Why is it giving an error in the last command? Is there anyone who can help?

your mv command is wrong

You need a space between the source and destination
All subsequent commands failed to execute because the file was never moved

[Attachment 72340 - Click to enlarge]

this time i am getting this error

Please run the following command to help us troubleshoot.

ls -al /data/local/tmp/frida-*

[Attachment 72347 - Click to enlarge]

how can i fix "unable to connect to remote frida-server: closed"

[somnambulist]

[Attachment 72347 - Click to enlarge]

how can i fix "unable to connect to remote frida-server: closed"

You need to have the frida server running in a separate command window in the background as per the instructions in the guide -- do not close this window once you execute the last command in the sequence shown (click to follow the link).
[Attachment 68356 - Click to enlarge]

[engomingo]

[Attachment 72347 - Click to enlarge]

how can i fix "unable to connect to remote frida-server: closed"

You need to have the frida server running in a separate command window in the background as per the instructions in the guide -- do not close this window once you execute the last command in the sequence shown (click to follow the link).
[Attachment 68356 - Click to enlarge]

[Attachment 72349 - Click to enlarge]

i finally solved the problem

https://github.com/ViRb3/magisk-frida

Download frida servers from this site and follow the steps

[NBA456017]

adb.exe shell
su
mv /sdcard/frida-server-16.1.1-android-x86_64 /data/local/tmp
chmod +x /data/local/tmp/frida-server-16.1.1-android-x86_64
/data/local/tmp/frida-server-16.1.1-android-x86_64

[tobby]

Hi guys!

I'm wondering about this code: adb.exe push frida-server-16.1.1-android-x86 /sdcard

Just to be sure, do you have to have a SDcard inserted or does 'sdcard' stand for something different?


After running this code (without having a SDcard inserted):

adb.exe shell
su
mv /sdcard/ frida-server-16.1.1-android-x86/data/local/tmp
chmod +x /data/local/tmp/ frida-server-16.1.1-android-x86
/data/local/tmp/frida-server-16.1.1-android-x86

I was shown this error:

C:\Users\tobia\AppData\Local\Android\Sdk\platform-tools>adb.exe shell
generic_x86_arm:/ $ su
frida-server-16.1.1-android-x86/data/local/generic_x86_arm:/ # mv /sdcard/ sdcard/ frida-server-16.1.1-android-x86/data/local/tmp <
ver-16.1.1-android-x86
/data/local/tmp/frida-server-16.1.1-andromv: bad '/sdcard/': No such file or directory
id-x86
mod +x /data/local/tmp/ frida-server-16.1.1-android-x86 <
chmod: frida-server-16.1.1-android-x86: No such file or directory
1|generic_x86_arm:/ # /data/local/tmp/frida-server-16.1.1-android-x86
/system/bin/sh: /data/local/tmp/frida-server-16.1.1-android-x86: not found
127|generic_x86_arm:/ #

Does anyone might know what exactly the problem is? Any help is appreciated.

Regards, Tobby