# PNG : Un logo obèse \[1/4]

{% file src="/files/prm308bJ7aDdv3FHacFt" %}

**Category:** Steganography - **Points:** 358 - **Difficulty:** Easy - **Solves:** 846

**Description:**

L'heure est grave. **Hallebarde** ne se cache plus et échange des messages en toute liberté. Un tel manque de précautions de leur part est alarmant, et même presque suspect. Un logo a été utilisé dans l'un de leurs courriels et d'après de premières analyses, il pourrait avoir été employé pour ouvrir un canal de stéganographie. Pourriez-vous tirer cela au clair ?

**Solution:**

For this steganography challenge, a basic command typical of this field was required: binwalk. By performing this command, one can extract a zip file from the png, which contains the png of the next step as well as the flag.

<details>

<summary>🚩 FLAG</summary>

```
404CTF{0b3z3_f1l3_h4z_zup3r_spy_s3cr37}
```

</details>


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://writeups.ayweth20.com/2022/404ctf/steganography/png-un-logo-obese-1-4.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.