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106 lines
4.9 KiB
Markdown
106 lines
4.9 KiB
Markdown
# 194,6667,6660-7000 - Pentesting IRC
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<details>
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<summary><strong>Support HackTricks and get benefits!</strong></summary>
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Do you work in a **cybersecurity company**? Do you want to see your **company advertised in HackTricks**? or do you want to have access the **latest version of the PEASS or download HackTricks in PDF**? Check the [**SUBSCRIPTION PLANS**](https://github.com/sponsors/carlospolop)!
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Discover [**The PEASS Family**](https://opensea.io/collection/the-peass-family), our collection of exclusive [**NFTs**](https://opensea.io/collection/the-peass-family)
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Get the [**official PEASS & HackTricks swag**](https://peass.creator-spring.com)
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**Join the** [**💬**](https://emojipedia.org/speech-balloon/) [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** me on **Twitter** [**🐦**](https://github.com/carlospolop/hacktricks/tree/7af18b62b3bdc423e11444677a6a73d4043511e9/\[https:/emojipedia.org/bird/README.md)[**@carlospolopm**](https://twitter.com/carlospolopm)**.**
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**Share your hacking tricks submitting PRs to the** [**hacktricks github repo**](https://github.com/carlospolop/hacktricks)**.**
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</details>
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## Basic Information
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IRC was **originally a plain text protocol** (although later extended), which on request was assigned port **194/TCP by IANA**. However, the de facto standard has always been to **run IRC on 6667/TCP** and nearby port numbers (for example TCP ports 6660–6669, 7000) to **avoid** having to run the IRCd software with **root privileges**.
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For connecting to a server it is required merely a **nickname**. Once connection is established, the first thing the server does is a reverse-dns to your ip:
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It seems that overall **there are two kinds of users**: **operators** and ordinary **users**. For logging in as an **operator** it is required a **username** and a **password** (and in many occasions a particular hostname, ip and even a particular hostmask). Within operators there are different privilege levels wherein the administrator has the highest privilege.
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**Default ports:** 194, 6667, 6660-7000
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```
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PORT STATE SERVICE
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6667/tcp open irc
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```
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## Enumeration
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### Banner
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IRC can support **TLS**.
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```bash
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nc -vn <IP> <PORT>
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openssl s_client -connect <IP>:<PORT> -quiet
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```
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### Manual
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Here you can see how to connect and access the IRC using some **random nickname** and then enumerate some interesting info. You can learn more commands of IRC [here](https://en.wikipedia.org/wiki/List\_of\_Internet\_Relay\_Chat\_commands#USERIP).
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```bash
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#Connection with random nickname
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USER ran213eqdw123 0 * ran213eqdw123
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NICK ran213eqdw123
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#If a PING :<random> is responded you need to send
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#PONG :<received random>
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VERSION
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HELP
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INFO
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LINKS
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HELPOP USERCMDS
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HELPOP OPERCMDS
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OPERATOR CAPA
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ADMIN #Admin info
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USERS #Current number of users
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TIME #Server's time
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STATS a #Only operators should be able to run this
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NAMES #List channel names and usernames inside of each channel -> Nombre del canal y nombre de las personas que estan dentro
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LIST #List channel names along with channel banner
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WHOIS <USERNAME> #WHOIS a username
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USERHOST <USERNAME> #If available, get hostname of a user
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USERIP <USERNAME> #If available, get ip of a user
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JOIN <CHANNEL_NAME> #Connect to a channel
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#Operator creds Brute-Force
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OPER <USERNAME> <PASSWORD>
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```
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### **Find and scan IRC services**
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```bash
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nmap -sV --script irc-botnet-channels,irc-info,irc-unrealircd-backdoor -p 194,6660-7000 irked.htb
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```
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### [Brute Force](../generic-methodologies-and-resources/brute-force.md#irc)
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### Shodan
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* `looking up your hostname`
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<details>
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<summary><strong>Support HackTricks and get benefits!</strong></summary>
|
||
|
||
Do you work in a **cybersecurity company**? Do you want to see your **company advertised in HackTricks**? or do you want to have access the **latest version of the PEASS or download HackTricks in PDF**? Check the [**SUBSCRIPTION PLANS**](https://github.com/sponsors/carlospolop)!
|
||
|
||
Discover [**The PEASS Family**](https://opensea.io/collection/the-peass-family), our collection of exclusive [**NFTs**](https://opensea.io/collection/the-peass-family)
|
||
|
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Get the [**official PEASS & HackTricks swag**](https://peass.creator-spring.com)
|
||
|
||
**Join the** [**💬**](https://emojipedia.org/speech-balloon/) [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** me on **Twitter** [**🐦**](https://github.com/carlospolop/hacktricks/tree/7af18b62b3bdc423e11444677a6a73d4043511e9/\[https:/emojipedia.org/bird/README.md)[**@carlospolopm**](https://twitter.com/carlospolopm)**.**
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**Share your hacking tricks submitting PRs to the** [**hacktricks github repo**](https://github.com/carlospolop/hacktricks)**.**
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</details>
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