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Port 222 Details

known port assignments and vulnerabilities
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Port(s) Protocol Service Details Source
222 tcp,udp rsh-spx IANA registered for Berkeley rshd with SPX auth

Trojans that use this port: NeuroticKat, Snape

MicroWorld Technologies eScan could allow a remote attacker to execute arbitrary commands on the system, caused by improper access control by the eScan Agent Application (MWAGENT.EXE). By sending a specially-crafted request to TCP port 222, an attacker could exploit this vulnerability to execute arbitrary commands on the system.
References: [CVE-2018-18388], [XFDB-154568]

Backdoor.Win32.Spion4 / Insecure Transit - SPION 4 Server terminal listens on TCP port 222 and passes its messages in unencrypted plaintext across the network.
References: [MVID-2021-0225]
222 tcp trojan NeuroticKat, Snape Trojans
222 tcp,udp rsh-spx Berkeley rshd with SPX auth SANS
222 tcp,udp rsh-spx Berkeley rshd with SPX auth Nmap
222 tcp,udp rsh-spx Berkeley rshd with SPX auth IANA
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Related ports: 221  

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External Resources
SANS Internet Storm Center: port 222

Port numbers in computer networking represent communication endpoints. Ports are unsigned 16-bit integers (0-65535) that identify a specific process, or network service. IANA is responsible for internet protocol resources, including the registration of commonly used port numbers for well-known internet services.
Well Known Ports: 0 through 1023.
Registered Ports: 1024 through 49151.
Dynamic/Private : 49152 through 65535.

TCP ports use the Transmission Control Protocol, the most commonly used protocol on the Internet and any TCP/IP network. 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. Like TCP, UDP is used in combination with IP (the Internet Protocol) and facilitates 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 and realtime gaming, 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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