Is port 4444 (Metasploit / I2P) dangerous?

Port 4444 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 4444 be open on my firewall?

No, port 4444 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 4444 use?

Port 4444 (Metasploit / I2P) uses the TCP transport protocol and falls under the Security & VPN category.

:4444 (TCP)

Metasploit / I2P

Critical 风险

TCP — Security & VPN

端口概览

端口号 4444

服务名称 Metasploit / I2P

传输协议 TCP

类别 Security & VPN

安全风险 Critical

端口范围已注册 (1024-49151)

什么是端口 4444?

Port 4444 is commonly associated with Metasploit Framework's default meterpreter reverse shell listener, making it a well-known indicator of compromise in security incidents. It is also used by I2P (Invisible Internet Project) for internal network communications. Legitimate uses include Oracle WebLogic and some Java applications.

TCP Security & VPN

安全注意事项

端口4444（Metasploit / I2P）被归类为严重风险。此端口不应暴露在公网上。该服务在未加密的情况下传输数据，容易受到窃听、凭据窃取和中间人攻击。

建议：在防火墙处封锁此端口。改用加密替代方案（SSH、SFTP、HTTPS）。

Metasploit / I2P

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端口概览

什么是端口 4444?

安全注意事项

相关端口 — Security & VPN

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