Baptiste Robert Profile picture
Jan 25, 2018 15 tweets 8 min read Twitter logo Read on Twitter
The @OnePlus #clipboard app contains a strange file called badword.txt 🤔

In these words, we can find: Chairman, Vice President, Deputy Director, Associate Professor, Deputy Heads, General, Private Message, shipping, Address, email, ...

pastebin.com/kfvJWKJB
This badword.txt is duplicated in a zip file called pattern. This archive contains 7 files:
- badword.txt
- brackets.txt
- end.txt
- follow.txt
- key.txt
- start.txt
All these files are used in a obfuscated package which seems to be an #Android library from teddymobile
TeddyMobile is a Chinese company, they worked with a lot of manufacturers including @oppo.

teddymobile.cn
As far as I understand, teddymobile is making number identification in SMS

The picture below can be translated like this:
- Total number of SMS 20M+
- SMS identification accuracy 100%
- Identification number recognition rate of 70%
- recognition accuracy of 95%
According to the code @OnePlus is sending your IMEI and the phone manufacturer to a Chinese server owned by teddymobile 😡
In the TeddyMobile's package com.ted, they have a class called SysInfoUtil. This class contains the following methods:
- getAndroidID
- getCPUSerial
- getDeviceId
- getHardwareSerialNumber
- getIMEI
- getIPAddress
- getMacAddress
- getPhoneNumbe
- getScreenPixels
Except getIPAddress and getScreenPixels, all the other methods are used.
They also send JSON messages to their servers with a "telephone" and "messageText" fields...😡
This is a good reminder...Please don't copy paste your bank account number...TeddyMobile has a dedicated method to recognize a bank account...😡
I didn't manage to trigger the network communications to the teddymobile servers but I will continue later. Moreover, I have other ideas in mind regarding this app 😉
After deeper investigation only a small part of the tedmobile sdk is used. In the ClipboardManager, in the verifyExpress method they used the method parserOnline.

This parserOnline will send what you have in your clipboard to a teddymobile server in order to parse it. It important to say that this method is used only for Chinese users.
So we can definitively say that clipboard data of @OnePlus Chinese users is send to teddymobile servers without their consent.
The conditions to send your data to teddymobile server are:
- clip data is not numeric
- not an email
- Chinese @OnePlus phone
- clipboard data matched the express pattern.

It good to say that parserOnline method is used 3 times in the code, so this is only 1 of the 3 usecases

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Aug 30, 2018
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Hi @KamalAditi,

Challenge accepted!

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People are stupid... A Youtube account called "DIGISEVA CENTER" showed how to bypass ECMP software in this video
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Thanks to his Paytm account you can find his Facebook page
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- operator
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- mnc
- country
- screen size
Yes, all these requests to @mopub are HTTP requests... Welcome to 2018...
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Apr 8, 2018
I’m analysing #KevDroid samples the new #Android #malware discovered several days ago by #ESTSecurity
blog.alyac.co.kr/1587
The samples are available on @koodous_project and @virusbay_io
28c69801929f0472cef346880a295cdf4956023cd3d72a1b6e72238f5b033aca
679d6ad1dd6d1078300e24cf5dbd17efea1141b0a619ff08b6cc8ff94cfbb27e
990d278761f87274a427b348f09475f5da4f924aa80023bf8d2320d981fb3209
Read 13 tweets

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