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 shows no login attempts, successful or failed, and no commands were executed. The connection appears to be a brief interaction without any malicious activity, indicating background noise.

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
1,756
Output tokens
97
Cost
$0.000322
Latency
1,564 ms
Verdict at
2026-09-21 06:03:57Z

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: 77.91.71.55:59058 (172.18.0.2:2222) [session: 6ac0ddb836df]",
      "outfile": null,
      "session": "6ac0ddb836df",
      "version": null,
      "dst_port": 2222,
      "password": null,
      "protocol": "ssh",
      "src_port": 59058,
      "username": null,
      "timestamp": "2026-09-21T06:03:57.639657Z",
      "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: \\x16\\x03\\x01\\x05\\xe2\\x01\\x00\\x05\\xde\\x03\\x03\\x95l\\x98\\x86g\\xa4\\x08[\\xf9\\xbf\\xc1:\\xa3.\\xa1\\x827\\x8c\\x91\\xf9b\\xb3l9\\xb36\\xc0>Eea\\x1f R\\xf9\\xaa\\xadR\\xf4n\\xfc\\xa0m(Ky\\xae6\\xb91\\xdf\\x0f\\x013\\xa0?\\x8b\\xde\\x89\\xce\\xf3r\\xbdt=\\x002\\xc0+\\xc0/\\xc0,\\xc00\\xcc\\xa9\\xcc\\xa8\\xc0\\x09\\xc0\\x13\\xc0",
      "outfile": null,
      "session": "6ac0ddb836df",
      "version": "\\x16\\x03\\x01\\x05\\xe2\\x01\\x00\\x05\\xde\\x03\\x03\\x95l\\x98\\x86g\\xa4\\x08[\\xf9\\xbf\\xc1:\\xa3.\\xa1\\x827\\x8c\\x91\\xf9b\\xb3l9\\xb36\\xc0>Eea\\x1f R\\xf9\\xaa\\xadR\\xf4n\\xfc\\xa0m(Ky\\xae6\\xb91\\xdf\\x0f\\x013\\xa0?\\x8b\\xde\\x89\\xce\\xf3r\\xbdt=\\x002\\xc0+\\xc0/\\xc0,\\xc00\\xcc\\xa9\\xcc\\xa8\\xc0\\x09\\xc0\\x13\\xc0",
      "dst_port": 2222,
      "password": null,
      "protocol": "ssh",
      "src_port": 59058,
      "username": null,
      "timestamp": "2026-09-21T06:03:57.639979Z",
      "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 1 milliseconds",
      "outfile": null,
      "session": "6ac0ddb836df",
      "version": null,
      "dst_port": 2222,
      "password": null,
      "protocol": "ssh",
      "src_port": 59058,
      "username": null,
      "timestamp": "2026-09-21T06:03:57.640449Z",
      "duration_ms": 1
    }
  ],
  "sensor": "hp-use-01",
  "source": "cowrie",
  "src_ip": "77.91.71.55",
  "session_id": "6ac0ddb836df"
}