{
  "port": 9290,
  "protocol": "tcp",
  "service": "Unassigned",
  "oneLiner": "Unregistered and uncommon; nothing standard claims 9290.",
  "whatItIs": "The IANA registry has no assignment for 9290 and nmap lists it as unknown. Like the rest of the sparsely used 9200-9400 range it shows up as an application's arbitrary choice rather than as a protocol. Fingerprint the listener rather than reading meaning into the number.",
  "exposure": {
    "verdict": "careful",
    "note": "The verdict belongs to whatever service is bound there; establish that first."
  },
  "checkCommand": "nmap -sV -Pn -p 9290 TARGET",
  "links": [
    {
      "title": "IANA Service Name and Transport Protocol Port Number Registry",
      "url": "https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml",
      "kind": "iana"
    },
    {
      "title": "nmap-services (port frequency and name table)",
      "url": "https://github.com/nmap/nmap/blob/master/nmap-services",
      "kind": "github"
    }
  ]
}
