HTB Cypher Writeup (Walkthrough)

Reconnaissance

Host Enumeration

┌──(kali㉿kali)-[~]
└─$ sudo nano /etc/hosts
10.10.11.57 cypher.htb

Port Scanning

┌──(kali㉿kali)-[~/Desktop/cypher]
└─$ nmap -sC -sV -oA cypher 10.10.11.57

# Nmap 7.95 scan initiated Wed Apr 30 10:16:45 2025 as: /usr/lib/nmap/nmap --privileged -sC -sV -oA cypher 10.10.11.57
Nmap scan report for cypher.htb (10.10.11.57)
Host is up (0.10s latency).
Not shown: 998 closed tcp ports (reset)
PORT   STATE SERVICE VERSION
22/tcp open  ssh     OpenSSH 9.6p1 Ubuntu 3ubuntu13.8 (Ubuntu Linux; protocol 2.0)
| ssh-hostkey: 
|   256 be:68:db:82:8e:63:32:45:54:46:b7:08:7b:3b:52:b0 (ECDSA)
|_  256 e5:5b:34:f5:54:43:93:f8:7e:b6:69:4c:ac:d6:3d:23 (ED25519)
80/tcp open  http    nginx 1.24.0 (Ubuntu)
|_http-server-header: nginx/1.24.0 (Ubuntu)
|_http-title: GRAPH ASM
Service Info: OS: Linux; CPE: cpe:/o:linux:linux_kernel

Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
# Nmap done at Wed Apr 30 10:16:58 2025 -- 1 IP address (1 host up) scanned in 12.82 seconds

This box is still active on HackTheBox. Once retired, this article will be published for public access as per HackTheBox’s policy on publishing content from their platform.

For more hints and assistance, come chat with me. You can reach out to me through my other social links in the site footer or menu.

Done!

---

Hi there 👋 Support me!

Life is an echo—what you send out comes back.