IRC

TCP

Messaging Medium Risk

IRC — default IRC port, botnet C2 communication

🔍 How to Scan Port 6667

nmap -sV -p 6667 target

nmap -sV -sC --script=banner -p 6667 target

nc -zv target 6667

Scan port 6667 with nmap -sV to identify the exact service and version
If IRC is not needed, close or firewall this port immediately
Check for default credentials if a management interface runs on this port
Use searchsploit irc to find known exploits
Monitor traffic on port 6667 with Wireshark or tcpdump for anomalies
Ensure the service is patched to the latest version to prevent known CVE exploitation

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