Port 5638Symantec Fingerprint Lookup and Container Reference Service
TCP/5638 is assigned to Symantec's Fingerprint Lookup and Container Reference Service; no established public deployment details are known.
- transport
- tcp
- in transit
- cleartext
- assignment
- official
- risk
- 1/10
- lookups
- 0
single transport
payload readable on path
registered with iana
safe
rank 993 of 5,533 · top 18%
also known as flcrs
Technical Details
what runs on :5638Symantec Fingerprint Lookup and Container Reference Service is registered on port :5638 over tcp to Symantec Corp, assigned January 2012. We don't have a technical write-up for it beyond the IANA registry entry.
In nmap's internet-wide scan data this port is never observed open, so if it's open on your network it's more likely a custom or misconfigured service than the registered one.
find what's listening on :5638
# linux
sudo ss -tlpn 'sport = :5638'
# macos / bsd
sudo lsof -nP -i :5638
# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :5638nmap -sV -p T:5638 <host>run it? the handshake, the implementations you meet in the wild and the flags that matter come from the engineers who do.
add technical detailsSecurity Information
exposure of :5638risk score
1/ 10safe
routine exposure. this port is rarely the way in on its own — keep it patched and logged and move on.
security averages 3.0 across 394 ports — this one sits 2.0 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
every listening transport is another surface to filter at the edge
security overview
no security notes recorded for :5638 yet
known exploits, hardening advice, what a compromise looks like — suggest an edit if you know its exposure.
Related Ports
the 8 most looked-up other ports in security — 394 ports carry that label.
| port | service | risk | |||
|---|---|---|---|---|---|
| :8881 | Atlasz Secure Server | TCP | Web Services | caution | 67.6k |
| :443 | HTTPS | TCPtls | Web Services | caution | 65.9k |
| :8291 | Winbox MikroTik Admin | TCP | Security | caution | 62.9k |
| :3268 | Microsoft Global Catalog (GC) | TCPUDP | Security | caution | 54.6k |
| :135 | Microsoft EPMAP | TCPUDP | Security | caution | 51.9k |
| :3128 | Squid Proxy HTTP | TCP | Web Services | caution | 45.8k |
| :8080 | HTTP Alternate | TCP | Web Services | caution | 44.9k |
| :7000 | Vuze HTTPS Tracker | TCPtls | Security | caution | 28.9k |
risk mix of the 8 listed
- caution100%
2 of 8 encrypted