> For the complete documentation index, see [llms.txt](https://wintertia.gitbook.io/ctf/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wintertia.gitbook.io/ctf/readme.md).

# Welcome

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**Welcome to my site! I'm usually known as `Wintertia (or Winter)`**
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My blog has migrated to <https://wintertia.pages.dev/> ! This Gitbook will no longer be maintained.
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I'm a member of the Indonesian cyber security community, [**`Heroes Cyber Security (HCS)`**](https://hcs-team.com/). My main category of cyber security is learning low-level programming and system internals, which usually connects to **Binary Exploitation.**

This site will be used as my notes for all the **Capture the Flag (CTF)** competitions I've played in, especially in the **Binary Exploitation** category. There will be other categories as well depending on how important I think it is for myself to write it down.

Writeups are sorted by:

* Categories based on year
* The event time (from latest to oldest)
* The challenge solve time (from latest to oldest)