# 194,6667,6660-7000 - Pentesting IRC

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## Osnovne informacije

IRC, prvobitno **protokol običnog teksta**, dodeljen je **194/TCP** od strane IANA, ali se obično koristi na **6667/TCP** i sličnim portovima kako bi se izbeglo potrebanje **root privilegija** za rad.

**Nadimak** je sve što je potrebno za povezivanje na server. Nakon povezivanja, server obavlja obrnuti DNS upit na korisnikov IP.

Korisnici su podeljeni na **operatore**, kojima su potrebni **korisničko ime** i **lozinka** za veći pristup, i obične **korisnike**. Operatori imaju različite nivoe privilegija, pri čemu su administratori na vrhu.

**Podrazumevani portovi:** 194, 6667, 6660-7000
```
PORT     STATE SERVICE
6667/tcp open  irc
```
## Enumeration

### Banner

IRC može podržavati **TLS**.
```bash
nc -vn <IP> <PORT>
openssl s_client -connect <IP>:<PORT> -quiet
```
### Manual

Ovde možete videti kako da se povežete i pristupite IRC-u koristeći neki **random nickname** i zatim enumerišete neke zanimljive informacije. Možete naučiti više komandi za IRC [ovde](https://en.wikipedia.org/wiki/List\_of\_Internet\_Relay\_Chat\_commands#USERIP).
```bash
#Connection with random nickname
USER ran213eqdw123 0 * ran213eqdw123
NICK ran213eqdw123
#If a PING :<random> is responded you need to send
#PONG :<received random>

VERSION
HELP
INFO
LINKS
HELPOP USERCMDS
HELPOP OPERCMDS
OPERATOR CAPA
ADMIN      #Admin info
USERS      #Current number of users
TIME       #Server's time
STATS a    #Only operators should be able to run this
NAMES      #List channel names and usernames inside of each channel -> Nombre del canal y nombre de las personas que estan dentro
LIST       #List channel names along with channel banner
WHOIS <USERNAME>      #WHOIS a username
USERHOST <USERNAME>   #If available, get hostname of a user
USERIP <USERNAME>     #If available, get ip of a user
JOIN <CHANNEL_NAME>   #Connect to a channel

#Operator creds Brute-Force
OPER <USERNAME> <PASSWORD>
```
Možete, takođe, pokušati da se prijavite na server sa lozinkom. Podrazumevana lozinka za ngIRCd je `wealllikedebian`.
```bash
PASS wealllikedebian
NICK patrick
USER test1 test2 <IP> :test3
```
### **Pronađite i skenirajte IRC usluge**
```bash
nmap -sV --script irc-botnet-channels,irc-info,irc-unrealircd-backdoor -p 194,6660-7000 <ip>
```
### [Brute Force](../generic-methodologies-and-resources/brute-force.md#irc)

### Shodan

* `looking up your hostname`


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