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Port 27374 Details

known port assignments and vulnerabilities
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Port(s) Protocol Service Details Source
27374 tcp,udp SubSeven One of the most commonly probed ports.

SubSeven Trojan horse uses this port (TCP). Also used as a backdoor port left behind by exploit scripts, such as those in the Ramen worm. While some scans for this port may be due to SubSeven, others may be looking for a remote shell.
Other trojan horses/backdoors that use this port: Bad Blood, Ramen, Seeker, SubSeven (many versions), Ttfloader, Webhead, TheSaint, Lion, EGO.

Address Search Protocol Daemon (ASPD) and BackDoor-G also use port 27374 TCP.
27374 tcp,udp Sub7 default. Most script kiddies do not change from this. (unofficial) Wikipedia
27374 tcp trojan Bad Blood, Fake SubSeven, li0n, Ramen, Seeker, SubSeven , SubSeven 2.1 Gold, Subseven 2.1.4 DefCon 8, SubSeven 2.2, SubSeven Muie, The Saint Trojans
27374 tcp SubSeven [trojan] SubSeven SANS
27374 tcp subseven Subseven Windows trojan Nmap
27374 tcp BadBlood [trojan] Bad Blood Neophasis
27374 tcp EGO [trojan] EGO Neophasis
27374 tcp FakeSubSeven [trojan] Fake SubSeven Neophasis
27374 tcp Lion [trojan] Lion Neophasis
27374 tcp Ramen [trojan] Ramen Neophasis
27374 tcp Seeker [trojan] Seeker Neophasis
27374 tcp Subseven2.1.4DefCon8 [trojan] Subseven 2.1.4 DefCon 8 Neophasis
27374 tcp SubSeven2.1Gold [trojan] SubSeven 2.1 Gold Neophasis
27374 tcp SubSeven2.2 [trojan] SubSeven 2.2 Neophasis
27374 tcp SubSevenMuie [trojan] SubSeven Muie Neophasis
27374 tcp TheSaint [trojan] The Saint Neophasis
27374 tcp Ttfloader [trojan] Ttfloader Neophasis
27374 tcp Webhead [trojan] Webhead Neophasis
27374 tcp,udp threat Bad Blood Bekkoame
27374 tcp,udp threat Baste Bekkoame
27374 tcp,udp threat Ramen Bekkoame
27374 tcp,udp threat Seeker Bekkoame
27374 tcp,udp threat SubSeven Bekkoame
27374 tcp,udp threat Subseven 2.1.4 DefCon 8 Bekkoame
27374 tcp,udp threat SubSeven Muie Bekkoame
27374 tcp,udp threat Ttfloader Bekkoame
27346-27441 tcp,udp Unassigned IANA
27 records found
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External Resources
SANS Internet Storm Center: port 27374

Well Known Ports: 0 through 1023.
Registered Ports: 1024 through 49151.
Dynamic/Private : 49152 through 65535.

TCP ports use the Transmission Control Protocol. TCP is the most commonly used protocol on the Internet and any TCP/IP network. Whereas the IP protocol deals only with packets, TCP enables two hosts to establish a connection and exchange streams of data. TCP guarantees delivery of data and that packets will be delivered in the same order in which they were sent. Guaranteed communication/delivery is the key difference between TCP and UDP.

UDP ports use the Datagram Protocol, a communications protocol for the Internet network, transport, and session layers. Like TCP (Transmission Control Protocol), UDP is used with IP (the Internet Protocol) and makes possible the transmission of datagrams from one computer to applications on another computer, but unlike TCP, UDP is connectionless and does not guarantee reliable communication; it's up to the application that received the message to process any errors and verify correct delivery. UDP is often used with time-sensitive applications, such as audio/video streaming, where dropping some packets is preferable to waiting for delayed data.

When troubleshooting unknown open ports, it is useful to find exactly what services/processes are listening to them. This can be accomplished in both Windows command prompt and Linux variants using the "netstat -aon" command. We also recommend runnig multiple anti-virus/anti-malware scans to rule out the possibility of active malicious software. For more detailed and personalized help please use our forums.

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