Port 365Deception Toolkit

A port associated with Fred Cohen’s Deception Toolkit, an early honeypot for detecting and recording attacker activity.

transport: tcp · udp
in transit: cleartext
assignment: official
risk: 2/10
lookups: 0

also known as dtk

Technical Details

what runs on :365

DTK is a configurable honeypot toolkit rather than a wire protocol with one universal handshake or framing format. The assignment covers both TCP and UDP, while the actual listeners, emulated services, responses, and payload formats depend on the deployment; traffic may resemble the decoy service rather than identify itself as DTK. There are no generally applicable companion ports or protocol defaults beyond the registered port.

Security Information

exposure of :365

risk score

2/ 10safe

routine exposure. this port is rarely the way in on its own — keep it patched and logged and move on.

security averages 3.6 across 241 ports — this one sits 1.6 below.

in transit

cleartext

credentials and payloads are readable by anyone on path

assignment

official

registered with iana for this service — scanners fingerprint it by number

reachable over

tcp · udp

udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite

security overview

This port is normally exposed intentionally as part of a honeypot, not as a production service. It will accept and record hostile probes, and an old or misconfigured deployment could expose the host or reveal deception-monitoring details; keep it isolated, restrict management access, and do not treat its presence as evidence of a normal business service.

Record

iana registry entry

port: :365
service: Deception Toolkit
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 2/10safe
category: Security
usage: The Deception Toolkit (DTK) is an early honeypot and deception package developed by Fred Cohen. Deployments use decoy listeners and simulated services to attract, detect, and log probes; it is mainly encountered on research or legacy honeypot hosts.
lookups: 0rank 994
added: 2026-08-29
updated: 2026-08-29
references: IANA service name registry — port 365

Something wrong?

This record is maintained by the engineers who use port 365. Every field on it is editable — change what's wrong, say how you know, and a reviewer publishes it, usually within a minute. Last touched 2026-08-29.

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all 241 in security →

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risk mix of the 8 listed

caution100%

3 of 8 encrypted

Port :365Deception Toolkit

Technical Details

Security Information

Related Ports

Port 365Deception Toolkit