alert http $EXTERNAL_NET any -> $HOME_NET 2375 (msg:"ATTACK Inbound Docker Engine API container create from external source"; \
flow:to_server,established; \
http.method; content:"POST"; \
http.uri; content:"/containers/create"; \
classtype:attempted-admin; priority:2; sid:1000231001; rev:2; \
reference:url,docs.docker.com/engine/api/v1.47/; \
metadata:created_at 2026-05-28;)Ingress · TCP/2375 · SID 1000231001
Fires on any inbound Docker Engine API container-create from an external source. Any external create against a Docker daemon is hostile. Pairs with the info-tier internal rule below.