SentinelBrief
← Alert queue

77.91.71.55

Sensor
hp-use-01
Source
cowrie
Status
triaged
Event time
Received

Verdict

S1scanningConfidence 90%Escalate: no

Reasoning

The session did not involve any login attempts or commands executed, indicating it was likely background noise or a probe without malicious intent.

Recommended action

Monitor for further activity from this IP address, but no immediate action is required.

Routing

Primary model
gpt-4o-mini
Final model
gpt-4o-mini
Escalated to strong model
no
Prompt version
triage-v4
Input tokens
1,567
Output tokens
88
Cost
$0.000288
Latency
1,310 ms
Verdict at
2026-09-21 06:04:00Z

Tool trace

  1. No tool calls were made.

Raw session JSON
{
  "events": [
    {
      "url": null,
      "uuid": "28d6f35e-aed5-11f1-a29a-0242ac120002",
      "input": null,
      "dst_ip": "172.18.0.2",
      "sensor": "hp-use-01",
      "shasum": null,
      "src_ip": "77.91.71.55",
      "eventid": "cowrie.session.connect",
      "message": "New connection: 77.91.71.55:39890 (172.18.0.2:2222) [session: ac4d68a37864]",
      "outfile": null,
      "session": "ac4d68a37864",
      "version": null,
      "dst_port": 2222,
      "password": null,
      "protocol": "ssh",
      "src_port": 39890,
      "username": null,
      "timestamp": "2026-09-21T06:04:00.480160Z",
      "duration_ms": null
    },
    {
      "url": null,
      "uuid": "28d6f35e-aed5-11f1-a29a-0242ac120002",
      "input": null,
      "dst_ip": "172.18.0.2",
      "sensor": "hp-use-01",
      "shasum": null,
      "src_ip": "77.91.71.55",
      "eventid": "cowrie.client.version",
      "message": "Remote SSH version: GET / HTTP/1.1",
      "outfile": null,
      "session": "ac4d68a37864",
      "version": "GET / HTTP/1.1",
      "dst_port": 2222,
      "password": null,
      "protocol": "ssh",
      "src_port": 39890,
      "username": null,
      "timestamp": "2026-09-21T06:04:00.494806Z",
      "duration_ms": null
    },
    {
      "url": null,
      "uuid": "28d6f35e-aed5-11f1-a29a-0242ac120002",
      "input": null,
      "dst_ip": "172.18.0.2",
      "sensor": "hp-use-01",
      "shasum": null,
      "src_ip": "77.91.71.55",
      "eventid": "cowrie.session.closed",
      "message": "Connection lost after 16 milliseconds",
      "outfile": null,
      "session": "ac4d68a37864",
      "version": null,
      "dst_port": 2222,
      "password": null,
      "protocol": "ssh",
      "src_port": 39890,
      "username": null,
      "timestamp": "2026-09-21T06:04:00.496877Z",
      "duration_ms": 16
    }
  ],
  "sensor": "hp-use-01",
  "source": "cowrie",
  "src_ip": "77.91.71.55",
  "session_id": "ac4d68a37864"
}