Ethical Hacking Training Institute
Extreme Hacking | Sadik Shaikh | Cyber Suraksha Abhiyan

Credits: Malware4u

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# Exploit Title: Telegram Web Empty Username Bypass
# version : Telegram Web 0.5.5
# Tested on: Windows 10
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Description:
Telegram filters null bytes for username input but you can bypass this
filter with "NOP"s (0x90) on web version of Telegram because this
filter isn't from server's codes side
##########################################################################
Step 1:
First you must decode "0x90" with hackbar or ...
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Step 2:
Go to https://web.telegram.org.
Then go to "Settings" tab.
Then click on your username and change it to decoded hex.
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Now you have an empty username.
When someone forwards your messages, other people can't locate your

profile from forwarded messages.

 

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