Hacking on Medium
Twitch hack reveals how much revenue the platform’s biggest streamers make

https://cdn-images-1.medium.com/max/2600/1*w3zLkbyX-pv3EvUjoCy7ug.jpeg
Twitch, an American live streaming service, reported a data breach on Wednesday. The site is popular among gamers. Twitch streamers…

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Covert-Tube - Youtube As Covert-Channel - Control Systems Remotely And Execute Commands By Uploading Videos To Youtube
http://www.kitploit.com/2021/10/covert-tube-youtube-as-covert-channel.html

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A program to control systems remotely by uploading videos to Youtube using Python to create the videos and the listener, emulating some malware I was reading about. It allows to create videos with frames formed of simple text, QR codes with cleartext or QR codes using AES encryption.
Create a video
The videos can be created using generate_video.py: enter the commands and generate the video writing "exit". The video generated is called by default output.avi (can be updated in config.py):python3 generate_video.py

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Run the listener (https://www.kitploit.com/search/label/Listener) and upload the video to Youtube
python3 main.py
The listener will check the Youtube channel every 300 seconds by default (can be updated in config.py). First the video is uploaded:

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After finding there is a new video in the channel (https://www.youtube.com/watch?v=ZPQ4drX35bU), it is downloaded and the commands are executed:

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We can see the output from the commands:

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Configuration
Update the config.py file:channel_id (Mandatory!!!): Get your Youtube channel ID from here (https://www.youtube.com/account_advanced).api_key (Mandatory!!!): To get the API key create an application and generate the key from here (https://console.cloud.google.com/apis/credentials).image_type (Optional. Default: "qr_aes"): Different types of images for the video."cleartext" creates images with the words of the commands."qr" creates QR codes with the commands."qr_aes" creates QR codes with the commands encrypted with AES.upload_seconds_delay (Optional. Default: 300): Seconds delay until checking if a new video has been uploaded.debug (Optional. Default: True): Print messages or not.aes_key (Optional. Default: "covert-tube_2021"): Key for AES encryption, used in the "qr_aes" option.generated_video_path (Optional. Default: "output.avi"): Path of video generated with generate_video.py.downloaded_video_path (Optional. Default: "/tmp/test.mp4"): Path where the new video will be downloaded.temp_folder (Optional. Default: "/tmp/"): Path where images of every frame from the video are stored, with the format image_X.png.
Installing dependencies
For all the project:pip3 install Pillow opencv-python youtube_dl pytesseract pyqrcode pypng pyzbar pycrypto
For only the "cleartext" option (OCR):pip3 install Pillow opencv-python youtube_dl pytesseract
For only the QR without encryption (https://www.kitploit.com/search/label/Encryption) option:pip3 install Pillow opencv-python youtube_dl pyqrcode pypng pyzbar
For only the QR with AES encryption option:pip3 install Pillow opencv-python youtube_dl pyqrcode pypng pyzbar pycrypto

Creating a standalone binary
pyinstaller --onefile main.py
cp dist/main covert-tube
rm -rf dist build
rm main.spec

Motivation
Lately I have been reading about malware using Youtube for controlling their setting remotely. For example, Casbaneiro abuses YouTube to store its C&C server domains. Each video on the channels used by the threat actor contains a description and at the end of these there is a link to a bogus Facebook (https://www.kitploit.com/search/label/Facebook) or Instagram (https://www.kitploit.com/search/label/Instagram) url containing the C&C server domain (Welivesecurity blog (https://www.welivesecurity.com/2019/10/03/casbaneiro-trojan-dangerous-cooking/)). A second example is Numando, which abuses it by encrypting the data in the title of the Youtube videos (other Welivesecurity blog (https://www.welivesecurity.com/2021/09/17/numando-latam-banking-trojan/)).Knowing this I decided to create a PoC to test the control of remote systems uploading videos to Youtube but, instead of using the title or the description, using the content of the video. It allows to execute any command, but it could be used to change some settings remotely. So this is just a PoC, use it for educational purposes!

Download Covert-Tube (https://github.com/ricardojoserf/covert-tube)

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[my bug boutry notes ]
https://medium.com/@onepython7/my-bug-boutry-notes-50879a1dd932?source=rss------bug_bounty-5

*wesite testing rolse *Continue reading on Medium » (https://medium.com/@onepython7/my-bug-boutry-notes-50879a1dd932?source=rss------bug_bounty-5)

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Can Bugs ever be useful?
https://vanshika-nehra23.medium.com/can-bugs-ever-be-useful-82c4258f9ec5?source=rss------bug_bounty-5

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The answer is YES if you get a good BOUNTY for catching those “BUGS”.Continue reading on Medium » (https://vanshika-nehra23.medium.com/can-bugs-ever-be-useful-82c4258f9ec5?source=rss------bug_bounty-5)

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Can Bugs ever be useful?

The answer is YES if you get a good BOUNTY for catching those “BUGS”.Continue reading on Medium »
Read more...

Black Hat Ethical Hacking
Microsoft is disabling Excel 4.0 macros by default to protect users

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Covert-Tube - Youtube As Covert-Channel - Control Systems Remotely And Execute Commands By Uploading Videos To Youtube

A program to control systems remotely by uploading videos to Youtube using Python to create the videos and the listener, emulating some malware I was reading about. It allows to create videos with frames formed of simple text, QR codes with cleartext or QR codes using AES encryption.Create a videoThe videos can be created using generate_video.py: enter the commands and generate the video writing "exit". The video generated is called by default output.avi (can be updated in config.py):python3 generate_video.py Run the listener and upload the video to Youtubepython3 main.pyThe listener will check the Youtube channel every 300 seconds by default (can be updated in config.py). First the video is uploaded:After finding there is a new video in the channel, it is downloaded and the commands are executed: We can see the output from the commands:ConfigurationUpdate the config.py file:channel_id (Mandatory!!!): Get your Youtube channel ID from here.api_key (Mandatory!!!): To get the API key create an application and generate the key from here.image_type (Optional. Default: "qraes"): Different types of images for the video."cleartext" creates images with the words of the commands."qr" creates QR codes with the commands."qr\aes" creates QR codes with the commands encrypted with AES.upload_seconds_delay (Optional. Default: 300): Seconds delay until checking if a new video has been uploaded.debug (Optional. Default: True): Print messages or not.aes_key (Optional. Default: "covert-tube2021"): Key for AES encryption, used in the "qr\aes" option.generated_video_path (Optional. Default: "output.avi"): Path of video generated with generate_video.py.downloaded_video_path (Optional. Default: "/tmp/test.mp4"): Path where the new video will be downloaded.temp_folder (Optional. Default: "/tmp/"): Path where images of every frame from the video are stored, with the format image_X.png.Installing dependenciesFor all the project:pip3 install Pillow opencv-python youtube_dl pytesseract pyqrcode pypng pyzbar pycryptoFor only the "cleartext" option (OCR):pip3 install Pillow opencv-python youtube_dl pytesseractFor only the QR without encryption option:pip3 install Pillow opencv-python youtube_dl pyqrcode pypng pyzbarFor only the QR with AES encryption option:pip3 install Pillow opencv-python youtube_dl pyqrcode pypng pyzbar pycryptoCreating a standalone binarypyinstaller --onefile main.pycp dist/main covert-tuberm -rf dist buildrm main.specMotivationLately I have been reading about malware using Youtube for controlling their setting remotely. For example, Casbaneiro abuses YouTube to store its C&C server domains. Each video on the channels used by the threat actor contains a description and at the end of these there is a link to a bogus Facebook or Instagram url containing the C&C server domain (Welivesecurity blog). A second example is Numando, which abuses it by encrypting the data in the title of the Youtube videos (other Welivesecurity blog).Knowing this I decided to create a PoC to test the control of remote systems uploading videos to Youtube but, instead of using the title or the description, using the content of the video. It allows to execute any command, but it could be used to change some settings remotely. So this is just a PoC, use it for educational purposes!Download Covert-Tube
Read more...

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