> 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/2021/dvctf-to-join-davincicode/reverse/baby-reverse.md).
# Baby Reverse
{% file src="/files/fTpJhtqoouRs1w99hhmy" %}
**Category:** Reverse - **Points:** 33 - **Solves:** 21\
**Description:** I hid my flag in my script, but I don't what happened the file was deleted! The only thing left is this folder... Is my flag lost forever?
**Infos:**
> A .pyn file is provided (baby\_rev.cpython-39.pyn)
**Solution:**\
To solve this challenge you need to find a solution to decrypt the .pyc file.\
To do this you can use a python editor like [EduPython](http://maths-sciences-lp.ac-amiens.fr/568-edupython.html) or [PyScripter](https://sourceforge.net/projects/pyscripter/)\
After you installed the program, you need to open the .pyc file and examine the code that it returns you.\
The decrypt code is written like this :
So you need to see the start FLAG and search the rest...\
All letters highlighted in green compose the FLAG but two characters are missing (where there are two red points)\
So we need to guess these 2 characters (n and y).
When you have finished to find all letters you have the FLAG.
🚩 FLAG
```
DVC{py7h0n_b1n4ry}
```
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## 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, and the optional `goal` query parameter:
```
GET https://writeups.ayweth20.com/2021/dvctf-to-join-davincicode/reverse/baby-reverse.md?ask=&goal=
```
`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.
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.