> For the complete documentation index, see [llms.txt](https://writeups.ayweth20.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://writeups.ayweth20.com/2025/404ctf-2025/retro-ingenierie/etoile-binaire-1-2.md).

# Étoile binaire \[1/2]

**Catégorie:** Rétro-Ingénierie - **Difficulté:** Moyen

{% file src="/files/7KQvegV6KILoNkyxxOky" %}

**Description:**

<figure><img src="https://4219205392-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fybn4btwQnvitOl9uXz9p%2Fuploads%2F68FGZIbkcYFVxfIN4Nof%2Fimage.png?alt=media&amp;token=207eb8e6-d187-4307-a859-e18308102a10" alt=""><figcaption></figcaption></figure>

Solution:

<details>

<summary>🚩FLAG</summary>

`404CTF{}`

</details>