# Welcome

{% hint style="info" %}
**Welcome to my site! I'm usually known as `Wintertia (or Winter)`**
{% endhint %}

{% hint style="danger" %}
My blog has migrated to <https://wintertia.pages.dev/> ! This Gitbook will no longer be maintained.
{% endhint %}

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)


---

# 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://wintertia.gitbook.io/ctf/readme.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.
