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194,6667,6660-7000 - Pentesting IRC ​

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Their primary goal of WhiteIntel is to combat account takeovers and ransomware attacks resulting from information-stealing malware.

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⛓️ External Link
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Basic Information ​

IRC, initially a plain text protocol, was assigned 194/TCP by IANA but is commonly run on 6667/TCP and similar ports to avoid needing root privileges for operation.

A nickname is all that's needed to connect to a server. Following connection, the server performs a reverse-DNS lookup on the user's IP.

Users are divided into operators, who need a username and password for more access, and regular users. Operators have varying levels of privileges, with administrators at the top.

Default ports: 194, 6667, 6660-7000

PORT     STATE SERVICE
6667/tcp open  irc

Enumeration ​

IRC can support TLS.

bash
nc -vn <IP> <PORT>
openssl s_client -connect <IP>:<PORT> -quiet

Manual ​

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.

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>

You can, also, atttempt to login to the server with a password. The default password for ngIRCd is wealllikedebian.

bash
PASS wealllikedebian
NICK patrick
USER test1 test2 <IP> :test3

Find and scan IRC services ​

bash
nmap -sV --script irc-botnet-channels,irc-info,irc-unrealircd-backdoor -p 194,6660-7000 <ip>

Brute Force ​

Shodan ​

  • looking up your hostname

WhiteIntel ​

WhiteIntel is a dark-web fueled search engine that offers free functionalities to check if a company or its customers have been compromised by stealer malwares.

Their primary goal of WhiteIntel is to combat account takeovers and ransomware attacks resulting from information-stealing malware.

You can check their website and try their engine for free at:

⛓️ External Link
https://whiteintel.io
Learn AWS hacking from zero to hero with htARTE (HackTricks AWS Red Team Expert)!

Other ways to support HackTricks: