Shark on Wire-Traboda - Forensics- CTF - Write-up

Aravind Rajesh
2 min readJun 29, 2021

CHALLENGE DESCRIPTION

Lara sent me a file which had some hidden message. Help me recover the secret information.

Flag Format: shaktictf{...}

Reading the challenge description first thing that came to my mind was strings command.

strings -print the sequences of printable characters in files. It primarily focuses on determining the contents of and extracting text from the binary files (non-text file).

command line to be executed:

strings network1_d6d54cf2-cf7d-4520–81f66efde2105968.pcapng|grep shaktictf

At first, I executed strings command without piping. A bunch of texts showed up. I found it very difficult to find the flag from them but when I piped grep command along with strings command. 🏁 became more like a piece of 🍰 for me πŸ˜†πŸ˜œβ€¦

flag for challenge: shaktictf{wir3sh4rk_i5_ju5t_aw3s0m3}

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Aravind Rajesh

CSE undergrad. Learning web3 and Blockchain. Interested in both Development and Security.