Tags: modbus tcp forensics network wireshark 

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While managing some of our thermal systems, we noticed unusual behavior. We collected the network traffic, see if you can find anything unusual.

Developed by: Dan D

[final.pcapng](https://github.com/Nightxade/ctf-writeups/blob/master/assets/CTFs/Jersey-CTF-IV-2024/final.pcapng)

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Follow TCP Stream --> Stream 1 --> Hex Dump

Some bytes left out --> all the bytes after the "}" are filled into the missing byte places in sequential order.

jctf{I_rEllAy_H0p3_thi$_i$nt_a_p0ol_sy$t3m_aGa1n}

Original writeup (https://nightxade.github.io/ctf-writeups/writeups/2024/Jersey-CTF-IV-2024/forensics/vibrations.html).