12345
NetBus / Custom Apps
Critical 风险TCP/UDP — Security & VPN
端口概览
端口号
12345
服务名称
NetBus / Custom Apps
传输协议
TCP/UDP
类别
Security & VPN
安全风险
Critical
端口范围
已注册 (1024-49151)
什么是端口 12345?
Historically associated with NetBus, an early remote administration and trojan tool from the late 1990s. Still flagged as suspicious in security scans when found open unexpectedly. Also used by various custom and development applications.
TCP/UDP
Security & VPN
安全注意事项
端口12345（NetBus / Custom Apps）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）。