Port 50050 (Cobalt Strike team server)

Not a standard service: the default port for the Cobalt Strike team server, used by red teams and criminals.

Transport
TCP
Internet exposure
Never expose

Should not be reachable from the internet.

Security notes

  • Internet scans for 50050 are used to find Cobalt Strike infrastructure.
  • Operators often change it, so absence proves nothing.

When it shows up in your logs

A server of yours listening on 50050 needs urgent investigation.