---
title: "Rebika Parajuli (@rebika) | Hashnode"
description: "Rebika Parajuli (@rebika) writes on Hashnode. Read their latest articles and follow their work."
url: "https://hashnode.com/@rebika"
---

@rebika

# Rebika Parajuli

@rebika · Pokhara, Nepal · Joined May 2026

### [keygenme-py | CyLab Security Academy (PicoCTF)](https://pico-ctf.hashnode.dev/keygenme-py-cylab-security-academy-picoctf?utm_source=hashnode&utm_medium=feed)

keygenme-py is a Medium level ctf challenge in the reverse engineering domain. A python script with no instructions in present in this challenge. A file named keygenme-trial.py is provided. Upon downl

3 min read · [pico-ctf.hashnode.dev](https://pico-ctf.hashnode.dev/keygenme-py-cylab-security-academy-picoctf?utm_source=hashnode&utm_medium=feed)

[Jun 12](https://hashnode.com/posts/keygenme-py-cylab-security-academy-picoctf/6a2c1d48514f560576fe36d9)

### [First Grep | CyLab Security Academy (PicoCTF)](https://pico-ctf.hashnode.dev/first-grep-cylab-security-academy-picoctf?utm_source=hashnode&utm_medium=feed)

First Grep is a General Skill, easy challenge intending on the use of Grep tool. We are provided with the following details along with a file containing flag. Can you find the flag in the file? This w

2 min read · [pico-ctf.hashnode.dev](https://pico-ctf.hashnode.dev/first-grep-cylab-security-academy-picoctf?utm_source=hashnode&utm_medium=feed)

[Jun 12](https://hashnode.com/posts/first-grep-cylab-security-academy-picoctf/6a2b5d9551b9a28a521cecfa)

### [Mod 26 | CyLab Security Academy (PicoCTF)](https://pico-ctf.hashnode.dev/mod-26-cylab-security-academy-picoctf?utm_source=hashnode&utm_medium=feed)

Mod 26 is a General skill challenge lab. It aims to introduce learners about ROT13. The prompt provided to us is as follows: Cryptography can be easy, do you know what ROT13 is? values.txt file is m

2 min read · [pico-ctf.hashnode.dev](https://pico-ctf.hashnode.dev/mod-26-cylab-security-academy-picoctf?utm_source=hashnode&utm_medium=feed)

[Jun 5](https://hashnode.com/posts/mod-26-cylab-security-academy-picoctf/6a22d60cbdc172ef883fcb7f)

### [What's a net cat ? | CyLab Security Academy (PicoCTF)](https://pico-ctf.hashnode.dev/what-s-a-net-cat-cylab-security-academy-picoctf?utm_source=hashnode&utm_medium=feed)

What's a net cat ? is a simple General Skills lab intending to introduce learners to the basics of Netcat. Netcat is a versatile command-line networking utility used to read and write data across TCP

2 min read · [pico-ctf.hashnode.dev](https://pico-ctf.hashnode.dev/what-s-a-net-cat-cylab-security-academy-picoctf?utm_source=hashnode&utm_medium=feed)

[May 29](https://hashnode.com/posts/what-s-a-net-cat-cylab-security-academy-picoctf/6a18fe2b782587548358ffa5)

### [Missing Person | Try Hack Me Challenge Write-up](https://thm-writeup.hashnode.dev/missing-person-try-hack-me-challenge-write-up?utm_source=hashnode&utm_medium=feed)

Missing Person is a challenge lab to test one’s OSINT (Open Source Intelligence) skills. Two jpg format files are provided named food.jpg and motoGP.jpg and using them we are to find the details of th

4 min read · [thm-writeup.hashnode.dev](https://thm-writeup.hashnode.dev/missing-person-try-hack-me-challenge-write-up?utm_source=hashnode&utm_medium=feed)

[May 7](https://hashnode.com/posts/missing-person-try-hack-me-challenge-write-up/69fc35473d9a9c1019713b5a)