Is port 31337 (Back Orifice / Elite) dangerous?

Port 31337 is classified as critical risk and should not be exposed to the public internet. It transmits data without encryption, making it vulnerable to eavesdropping and credential theft.

Should port 31337 be open on my firewall?

No, port 31337 should not be open to the public internet. Block it at the firewall and use encrypted alternatives such as SSH, SFTP, or HTTPS instead.

What transport protocol does port 31337 use?

Port 31337 (Back Orifice / Elite) uses the TCP/UDP transport protocol and falls under the Security & VPN category.

:31337 (TCP/UDP)

Back Orifice / Elite

Critical Risk

TCP/UDP — Security & VPN

Port Overview

Port Number 31337

Service Name Back Orifice / Elite

Transport Protocol TCP/UDP

Category Security & VPN

Security Risk Critical

Port Range Registered (1024-49151)

What is Port 31337?

Historically associated with Back Orifice, a controversial remote administration tool / trojan from 1998 by Cult of the Dead Cow. The number 31337 represents the hacker slang 'eleet' (elite). Finding this port open is a strong indicator of compromise.

TCP/UDP Security & VPN

Security Considerations

Port 31337 (Back Orifice / Elite) is classified as critical risk. This port should not be exposed to the public internet. The service transmits data without encryption, making it vulnerable to eavesdropping, credential theft, and man-in-the-middle attacks.

Recommendation: Block this port at the firewall. Use encrypted alternatives (SSH, SFTP, HTTPS) instead.

Related Ports — Security & VPN

31 MSG-AUTH 48 Auditd 49 TACACS 56 XNS-AUTH 62 ACA Services 65 TACACS-DS 88 Kerberos 90 DNSIX Security

Related Terms

SSL/TLS Certificate DDoS DNS Spoofing Encryption Firewall HTTPS