| Port No | 1 |
| Service Name | tcpmux |
| RFC Doc | 1078 |
| Protocol | UDP |
| Description | tcpmux - TCP Port Service Multiplexer Scans against this port are commonly used to test if a machine runs SGI Irix (as SGI is the only system that typically has this enabled). This service is almost never used in practice. Remote Access / ICQ trojan Sockets des Troie is French for Trojan Sockets and was one of the very first Remote Access trojans being published. |
| Reference Link | TCP port service Multiplexer (TCPMUX): RFC1078 Remote Access / ICQ trojan |
| Attack | tcpmux - TCP Port Service Multiplexer Virtually all traffic to port 1 can be considered hostile. Remote Access / ICQ trojan Works on Windows 95 and 98, together with ICQ. Features as telnet and finger. |
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