stegoPromedium

Hidden

TaipanByte CTF

Given a file `hide.tb` for download. The task name "Hidden" hints at hidden data.

steganography unicode brute_force encoding text_steganography whitespace invisible_characters

Unicode whitespace steganography3-bit (octal) encoding via 8 unique character typesBrute-force mapping using known plaintext prefixHex analysis of multi-byte UTF-8 sequences

$ ls tags/ techniques/

steganography unicode brute_force encoding text_steganography whitespace invisible_characters

Unicode whitespace steganography3-bit (octal) encoding via 8 unique character typesBrute-force mapping using known plaintext prefixHex analysis of multi-byte UTF-8 sequences

Analysis

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

$ python3 exploit.py --target 192.168.1.1 --port 8080
[*] Connecting to target...
[+] Shell obtained!

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