> For the complete documentation index, see [llms.txt](https://picoctf2021.haydenhousen.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://picoctf2021.haydenhousen.com/forensics/wireshark-doo-dooo-do-doo....md).

# Wireshark doo dooo do doo...

## Problem

> Can you find the flag? shark1.pcapng.

* [shark1.pcapng](https://github.com/HHousen/PicoCTF-2021/blob/master/Forensics/Wireshark%20doo%20dooo%20do%20doo.../shark1.pcapng)

## Solution

1. Open the file in wireshark and type in `tcp.stream eq 5` to get the 5th TCP stream.
2. Right click any entry, click follow, and then click "TCP Stream."
3. The flag will now be shown, but it is encoded: `Gur synt vf cvpbPGS{c33xno00_1_f33_h_qrnqorrs}`
4. We can decode the flag by passing it through ROT13 since this is a basic Caesar's cipher. You can decode ROT13 using [CyberChef](https://gchq.github.io/CyberChef/#recipe=ROT13\(true,true,false,13\)\&input=R3VyIHN5bnQgdmYgY3ZwYlBHU3tjMzN4bm8wMF8xX2YzM19oX3FybnFvcnJzfQ), for instance.

### Flag

`picoCTF{p33kab00_1_s33_u_deadbeef}`


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