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Blue41 Detections and Audit

Overview

Blue41 secures AI agents at runtime. This integration collects two Blue41 streams: detections, as firing, no-data and resolve transitions, and the audit trail of configuration, access-control and data-access actions on the Blue41 platform.

  • Vendor: Blue41
  • Supported environment: Blue41-hosted (a dedicated deployment per customer) or self-hosted
  • Detection based on: Alert, Audit
  • Supported application or feature: AI agent detections, platform audit trail

The full trace history stays in Blue41. Each event's event.url links back to it: the trace and span for a detection, the rule overview when no single span applies, or the audit log for an audit record.

Prerequisites

  • A Blue41 deployment.
  • Permission to create an intake in the target Sekoia community.

Blue41 sends events directly to Sekoia over HTTPS. No collector or polling connector is required.

Configure

Create the intake in Sekoia

  1. Open Intakes in the Operations Center and click New intake.
  2. Search for and select Blue41 Detections and Audit.
  3. Enter a name, select the entity, and save the intake.
  4. Copy the intake key from the intake details page.

Allow time for a newly created intake to become available to the HTTPS collector before enabling delivery. During activation, the collector can temporarily reject the new key.

See Manage intakes for more information.

Enable delivery from Blue41

For a deployment hosted by Blue41, send the Blue41 team the intake key through your agreed secure channel, along with your Sekoia region if it is not FRA1. The Blue41 team configures delivery.

For a self-hosted deployment, set these variables on the Blue41 platform:

Variable Value
SEKOIA__INTAKE_KEY The intake key.
SEKOIA__INTAKE_URL https://intake.sekoia.io/batch for FRA1. For other regions, https://intake.<region>.sekoia.io/api/v1/intake-http/batch.
EXPORT__UI_BASE_URL The base URL of your Blue41 deployment. Without it, events carry no event.url.

Once delivery is enabled, new detections and audit records are forwarded automatically. Earlier activity is not backfilled.

Enable the detection rules

Blue41 detections arrive as events. A Sekoia alert is raised only when an event matches a detection rule.

The Rules Catalog provides one built-in rule per Blue41 severity, because severity is set on a Sekoia rule rather than on the matched event:

Blue41 severity event.severity Built-in rule
critical 99 Blue41 Detection Critical Severity
error 75 Blue41 Detection Error Severity
warning 50 Blue41 Detection Warning Severity
info 25 Blue41 Detection Info Severity

Detections with no Blue41 severity, such as no-data detections, or with any other value score 25 and match the info rule.

Search the Rules Catalog for Blue41 and enable the four rules. Whether they are enabled automatically depends on the effort level configured for your community.

The rules match firing and no-data detections only. Resolves and audit records never raise alerts. Each Blue41 detection gets its own Sekoia alert, grouped on rule.id and blue41.alert.fingerprint.

Verify collection

  1. Trigger a detection in Blue41, or perform an audited action such as updating an alert rule.
  2. Open Sekoia's events page, search for sekoiaio.intake.uuid:"<intake UUID>" using the UUID of your Blue41 intake, and use a time range covering the activity.
  3. Verify the event timestamp, event.action, rule.name (detections) or user.name (audit records), and event.url against the activity in Blue41.
  4. For a firing or no-data detection, check that the matching rule raised one Sekoia alert.

A resolve appears on the events page but never raises a second alert.

Interpret the events

event.dataset separates the two streams: blue41.detection for detections and blue41.audit for audit records.

Event event.kind event.action event.outcome
Detection fires alert alert-fired unknown
Detection fires because data stopped arriving alert alert-no-data unknown
Detection resolves event alert-resolved unknown
Audit record event The audited verb, for example create, read, update or delete success or failure

log.level carries the Blue41 severity, and event.severity its score. rule.id and rule.name identify the Blue41 rule. trace.id and span.id identify the matched trace and span.

Blue41 maps AI agent concepts onto these ECS fields so Sekoia can build assets and the investigation graph:

Field Meaning
host.name The AI agent.
process.name The tool the agent called.
destination.domain The flagged domain, for example a link returned by a tool.

Audit records carry the actor in user.id, user.email and user.name, and the client in source.ip and user_agent.original.

The format adds these custom fields:

Field Meaning
blue41.event_id Blue41 event identifier, stable across redeliveries. Sekoia assigns its own event.id.
blue41.alert.fingerprint Identifies what the detection matched, such as a span. Two rules matching the same span share a fingerprint, so pair it with rule.id.
blue41.actor.type Principal that performed an audited action: user, service_account, system or anonymous.
blue41.audit.resource_kind Kind of resource the audited action targeted, for example rule, dashboard or session.
blue41.audit.resource_id Identifier of the resource the audited action targeted.

A resolve carries the same rule.id and blue41.alert.fingerprint as the detection it closes. Correlate them on those two fields.

Troubleshooting

Symptom Checks
No events arrive Confirm that the intake key and regional URL match, and that a detection or audit record has occurred since delivery was enabled. On a Blue41-hosted deployment, ask the Blue41 team to check delivery errors.
Sekoia returns a 422 response with INVALID_INTAKE_KEY Verify the key and regional URL. If the intake was just created, allow time for activation. Blue41 retries delivery. On a Blue41-hosted deployment, ask the Blue41 team to check delivery errors.
Events arrive but parsing fails Check that the intake uses Blue41 Detections and Audit. Share an anonymized failing event with support.
Events arrive but no alert is raised Check that the Blue41 rule for the event's event.severity is enabled in the Rules Catalog. Resolves and audit records never raise alerts.
event.url is missing On a self-hosted deployment, set EXPORT__UI_BASE_URL.

Event samples and extracted fields

The following samples use synthetic data.

Raw Events Samples

In this section, you will find examples of raw logs as generated natively by the source. These examples are provided to help integrators understand the data format before ingestion into Sekoia.io. It is crucial for setting up the correct parsing stages and ensuring that all relevant information is captured.

More than 5% of support-agent.example.com spans ended in error over the last 15 minutes.
research-agent.example.com used more than its 150k-token budget over the last 15 minutes.
A response from get_customer_kyc (agent: support-agent.example.com) contained sensitive data flagged as PERSON. This may mean personally identifiable or otherwise sensitive information was exposed through a tool's output -- review the trace to confirm whether this was expected.
The injection_scan guardrail flagged the input to read_calendar as a prompt-injection attempt and blocked the call.
A call to get_recent_transactions by support-agent.example.com returned a link to evil.example.com. This may indicate the agent is exposing, following, or being redirected to an unexpected external destination -- worth checking whether this domain is expected for this tool.
URL in tool response received no data since 2026-10-01 09:45:03
URL in tool response receives data again
A call to get_recent_transactions by support-agent.example.com returned a link to evil.example.com. This may indicate the agent is exposing, following, or being redirected to an unexpected external destination -- worth checking whether this domain is expected for this tool.
A call to fetch_invoice by billing-agent.example.com returned a link to cdn.example.net. This may indicate the agent is exposing, following, or being redirected to an unexpected external destination -- worth checking whether this domain is expected for this tool.
alice@example.com (11111111-1111-1111-1111-111111111111) created dashboard (0199e3e1-6b2d-7f35-a9c4-8e1b0d7f2a63)
alice@example.com failed to create session
alice@example.com (11111111-1111-1111-1111-111111111111) updated rule (0199e3c4-5b7a-7d21-9f4e-2a6c8b1d3e57)
alice@example.com (11111111-1111-1111-1111-111111111111) updated rule (0199e3c9-12f0-7a44-b3d8-6e0f9c27a1b4)
updated rule (0199e3d2-8c41-7e09-a5b6-3f7d1e48c920)
alice@example.com (11111111-1111-1111-1111-111111111111) read traces

Detection section

The following section provides information for those who wish to learn more about the detection capabilities enabled by collecting this intake. It includes details about the built-in rule catalog, event categories, and ECS fields extracted from raw events. This is essential for users aiming to create custom detection rules, perform hunting activities, or pivot in the events page.

No related built-in rules was found. This message is automatically generated.

Event Categories

The following table lists the data source offered by this integration.

Data Source Description
API monitoring Detections raised on AI agent tool calls and responses observed by Blue41.
Application logs Configuration, access-control and data-access actions performed on the Blue41 platform.

Transformed Events Samples after Ingestion

This section demonstrates how the raw logs will be transformed by our parsers. It shows the extracted fields that will be available for use in the built-in detection rules and hunting activities in the events page. Understanding these transformations is essential for analysts to create effective detection mechanisms with custom detection rules and to leverage the full potential of the collected data.

{
    "message": "More than 5% of support-agent.example.com spans ended in error over the last 15 minutes.",
    "event": {
        "action": "alert-fired",
        "category": [
            "intrusion_detection"
        ],
        "dataset": "blue41.detection",
        "kind": "alert",
        "module": "blue41",
        "outcome": "unknown",
        "reason": "A rising error rate usually means a broken tool or dependency.",
        "severity": 75,
        "type": [
            "info"
        ],
        "url": "https://blue41.example.com/alerts/overview?ruleId=0199e3d2-8c41-7e09-a5b6-3f7d1e48c920"
    },
    "@timestamp": "2026-10-01T09:55:40.284000Z",
    "blue41": {
        "alert": {
            "fingerprint": "15987518118162428587"
        },
        "event_id": "9bd9960267a2909d402fdc6ee07b01d1be54b38b49d02bf68988946f139cea46"
    },
    "host": {
        "name": "support-agent.example.com"
    },
    "log": {
        "level": "error"
    },
    "observer": {
        "product": "Blue41",
        "type": "sensor",
        "vendor": "Blue41"
    },
    "rule": {
        "id": "0199e3d2-8c41-7e09-a5b6-3f7d1e48c920",
        "name": "Agent error rate above 5%"
    }
}
{
    "message": "research-agent.example.com used more than its 150k-token budget over the last 15 minutes.",
    "event": {
        "action": "alert-fired",
        "category": [
            "intrusion_detection"
        ],
        "dataset": "blue41.detection",
        "kind": "alert",
        "module": "blue41",
        "outcome": "unknown",
        "reason": "Runaway token spend often means the agent is looping.",
        "severity": 75,
        "type": [
            "info"
        ]
    },
    "@timestamp": "2026-10-01T10:02:11.615000Z",
    "blue41": {
        "alert": {
            "fingerprint": "9008702465939328881"
        },
        "event_id": "0db13497b8b988d19509d25d651fd4769ea576996ae3c14fc02d203d39cad894"
    },
    "host": {
        "name": "research-agent.example.com"
    },
    "log": {
        "level": "high"
    },
    "observer": {
        "product": "Blue41",
        "type": "sensor",
        "vendor": "Blue41"
    },
    "rule": {
        "id": "0199e3d7-4e19-7c62-b0a8-5d2f6e91c3a7",
        "name": "Agent token spend above budget"
    }
}
{
    "message": "A response from get_customer_kyc (agent: support-agent.example.com) contained sensitive data flagged as PERSON. This may mean personally identifiable or otherwise sensitive information was exposed through a tool's output -- review the trace to confirm whether this was expected.",
    "event": {
        "action": "alert-fired",
        "category": [
            "intrusion_detection"
        ],
        "dataset": "blue41.detection",
        "kind": "alert",
        "module": "blue41",
        "outcome": "unknown",
        "reason": "Customer PII should not flow back through tool responses unredacted.",
        "severity": 99,
        "type": [
            "info"
        ],
        "url": "https://blue41.example.com/trace-report/34eea5b65ebd36ad0bb2660fbec7741d?span=7dd49320c9b8535c&alertKey=0199e3c9-12f0-7a44-b3d8-6e0f9c27a1b4-7062205136414075777-1790847771906&startTime=1790846871906&endTime=1790848671906"
    },
    "@timestamp": "2026-10-01T09:42:51.906000Z",
    "blue41": {
        "alert": {
            "fingerprint": "7062205136414075777"
        },
        "event_id": "74d2145bcfe1784ceab43dbf91c9d3fd44a53cf5d1d36a3304baa95909978aae"
    },
    "host": {
        "name": "support-agent.example.com"
    },
    "log": {
        "level": "critical"
    },
    "observer": {
        "product": "Blue41",
        "type": "sensor",
        "vendor": "Blue41"
    },
    "process": {
        "name": "get_customer_kyc"
    },
    "rule": {
        "id": "0199e3c9-12f0-7a44-b3d8-6e0f9c27a1b4",
        "name": "PII or secret in tool response"
    },
    "span": {
        "id": "7dd49320c9b8535c"
    },
    "trace": {
        "id": "34eea5b65ebd36ad0bb2660fbec7741d"
    }
}
{
    "message": "The injection_scan guardrail flagged the input to read_calendar as a prompt-injection attempt and blocked the call.",
    "event": {
        "action": "alert-fired",
        "category": [
            "intrusion_detection"
        ],
        "dataset": "blue41.detection",
        "kind": "alert",
        "module": "blue41",
        "outcome": "unknown",
        "reason": "A blocked injection attempt is worth reviewing even when the guardrail held.",
        "severity": 50,
        "type": [
            "info"
        ]
    },
    "@timestamp": "2026-10-01T09:45:00Z",
    "blue41": {
        "alert": {
            "fingerprint": "5560012398765432000"
        },
        "event_id": "921532d8ab6b092d7c6885e74c482d6fd29172668de2822785c06b5fc512588e"
    },
    "host": {
        "name": "internal-agent.example.com"
    },
    "log": {
        "level": "warning"
    },
    "observer": {
        "product": "Blue41",
        "type": "sensor",
        "vendor": "Blue41"
    },
    "organization": {
        "id": "11111111"
    },
    "process": {
        "name": "read_calendar"
    },
    "rule": {
        "id": "0199a1f2-0000-7000-8000-000000000003",
        "name": "Guardrail violation on tool",
        "ruleset": "guardrail-violation-on-tool"
    },
    "service": {
        "name": "internal-agent.example.com"
    },
    "span": {
        "id": "f9595054fbae204e"
    },
    "trace": {
        "id": "9dfdb0c07e8cdfb59fa0c59c77691c6e"
    }
}
{
    "message": "A call to get_recent_transactions by support-agent.example.com returned a link to evil.example.com. This may indicate the agent is exposing, following, or being redirected to an unexpected external destination -- worth checking whether this domain is expected for this tool.",
    "event": {
        "action": "alert-fired",
        "category": [
            "intrusion_detection"
        ],
        "dataset": "blue41.detection",
        "kind": "alert",
        "module": "blue41",
        "outcome": "unknown",
        "reason": "Agents should not surface unexpected external destinations.",
        "severity": 99,
        "type": [
            "info"
        ],
        "url": "https://blue41.example.com/trace-report/744646abaa66f28ea394986a14a3d2b1?span=7ae6b434f6a12784&alertKey=0199e3c4-5b7a-7d21-9f4e-2a6c8b1d3e57-12913821843703893669-1790846067318&startTime=1790845167318&endTime=1790846967318"
    },
    "@timestamp": "2026-10-01T09:14:27.318000Z",
    "blue41": {
        "alert": {
            "fingerprint": "12913821843703893669"
        },
        "event_id": "3f19662aa39aa9811862458b18500090f9d341971861f4a7fcf44d35b7351616"
    },
    "destination": {
        "address": "evil.example.com",
        "domain": "evil.example.com",
        "registered_domain": "example.com",
        "subdomain": "evil",
        "top_level_domain": "com"
    },
    "host": {
        "name": "support-agent.example.com"
    },
    "log": {
        "level": "critical"
    },
    "observer": {
        "product": "Blue41",
        "type": "sensor",
        "vendor": "Blue41"
    },
    "process": {
        "name": "get_recent_transactions"
    },
    "related": {
        "hosts": [
            "evil.example.com"
        ]
    },
    "rule": {
        "id": "0199e3c4-5b7a-7d21-9f4e-2a6c8b1d3e57",
        "name": "URL in tool response"
    },
    "span": {
        "id": "7ae6b434f6a12784"
    },
    "trace": {
        "id": "744646abaa66f28ea394986a14a3d2b1"
    }
}
{
    "message": "URL in tool response received no data since 2026-10-01 09:45:03",
    "event": {
        "action": "alert-no-data",
        "category": [
            "intrusion_detection"
        ],
        "dataset": "blue41.detection",
        "kind": "event",
        "module": "blue41",
        "outcome": "unknown",
        "reason": "Agents should not surface unexpected external destinations.",
        "severity": 25,
        "type": [
            "info"
        ],
        "url": "https://blue41.example.com/alerts/overview?ruleId=0199e3c4-5b7a-7d21-9f4e-2a6c8b1d3e57"
    },
    "@timestamp": "2026-10-01T10:00:03.552000Z",
    "blue41": {
        "alert": {
            "fingerprint": "18425422539428604940"
        },
        "event_id": "2e99f0771f58873a249697e2f1dfe7d5661d0a341fadaba098c836bf42f8a1ca"
    },
    "observer": {
        "product": "Blue41",
        "type": "sensor",
        "vendor": "Blue41"
    },
    "rule": {
        "id": "0199e3c4-5b7a-7d21-9f4e-2a6c8b1d3e57",
        "name": "URL in tool response"
    }
}
{
    "message": "URL in tool response receives data again",
    "event": {
        "action": "alert-resolved",
        "category": [
            "intrusion_detection"
        ],
        "dataset": "blue41.detection",
        "kind": "event",
        "module": "blue41",
        "outcome": "unknown",
        "reason": "Agents should not surface unexpected external destinations.",
        "severity": 25,
        "type": [
            "info"
        ],
        "url": "https://blue41.example.com/alerts/overview?ruleId=0199e3c4-5b7a-7d21-9f4e-2a6c8b1d3e57"
    },
    "@timestamp": "2026-10-01T10:05:03.552000Z",
    "blue41": {
        "alert": {
            "fingerprint": "18425422539428604940"
        },
        "event_id": "0013440f0d1d6f2bd6eec99a092599a0023c197d4bea4b692f4a5c15981177b5"
    },
    "observer": {
        "product": "Blue41",
        "type": "sensor",
        "vendor": "Blue41"
    },
    "rule": {
        "id": "0199e3c4-5b7a-7d21-9f4e-2a6c8b1d3e57",
        "name": "URL in tool response"
    }
}
{
    "message": "A call to get_recent_transactions by support-agent.example.com returned a link to evil.example.com. This may indicate the agent is exposing, following, or being redirected to an unexpected external destination -- worth checking whether this domain is expected for this tool.",
    "event": {
        "action": "alert-resolved",
        "category": [
            "intrusion_detection"
        ],
        "dataset": "blue41.detection",
        "kind": "event",
        "module": "blue41",
        "outcome": "unknown",
        "reason": "Agents should not surface unexpected external destinations.",
        "severity": 99,
        "type": [
            "info"
        ],
        "url": "https://blue41.example.com/trace-report/744646abaa66f28ea394986a14a3d2b1?span=7ae6b434f6a12784&alertKey=0199e3c4-5b7a-7d21-9f4e-2a6c8b1d3e57-12913821843703893669-1790847867318&startTime=1790846967318&endTime=1790848767318"
    },
    "@timestamp": "2026-10-01T09:44:27.318000Z",
    "blue41": {
        "alert": {
            "fingerprint": "12913821843703893669"
        },
        "event_id": "aa6ba3a00485d865daccf32f299c49af2801d7140a709a4a42a9697f6659f67a"
    },
    "destination": {
        "address": "evil.example.com",
        "domain": "evil.example.com",
        "registered_domain": "example.com",
        "subdomain": "evil",
        "top_level_domain": "com"
    },
    "host": {
        "name": "support-agent.example.com"
    },
    "log": {
        "level": "critical"
    },
    "observer": {
        "product": "Blue41",
        "type": "sensor",
        "vendor": "Blue41"
    },
    "process": {
        "name": "get_recent_transactions"
    },
    "related": {
        "hosts": [
            "evil.example.com"
        ]
    },
    "rule": {
        "id": "0199e3c4-5b7a-7d21-9f4e-2a6c8b1d3e57",
        "name": "URL in tool response"
    },
    "span": {
        "id": "7ae6b434f6a12784"
    },
    "trace": {
        "id": "744646abaa66f28ea394986a14a3d2b1"
    }
}
{
    "message": "A call to fetch_invoice by billing-agent.example.com returned a link to cdn.example.net. This may indicate the agent is exposing, following, or being redirected to an unexpected external destination -- worth checking whether this domain is expected for this tool.",
    "event": {
        "action": "alert-fired",
        "category": [
            "intrusion_detection"
        ],
        "dataset": "blue41.detection",
        "kind": "alert",
        "module": "blue41",
        "outcome": "unknown",
        "reason": "Staging agents should only link to approved CDNs.",
        "severity": 50,
        "type": [
            "info"
        ]
    },
    "@timestamp": "2026-10-01T09:31:02.047000Z",
    "blue41": {
        "alert": {
            "fingerprint": "2983060910021512851"
        },
        "event_id": "8aab24b3e33c400c2fe62f7bd0165157f9cc7b8d8734c8cb38a6013be584eef3"
    },
    "destination": {
        "address": "cdn.example.net",
        "domain": "cdn.example.net",
        "registered_domain": "example.net",
        "subdomain": "cdn",
        "top_level_domain": "net"
    },
    "host": {
        "name": "billing-agent.example.com"
    },
    "log": {
        "level": "warning"
    },
    "observer": {
        "product": "Blue41",
        "type": "sensor",
        "vendor": "Blue41"
    },
    "process": {
        "name": "fetch_invoice"
    },
    "related": {
        "hosts": [
            "cdn.example.net"
        ]
    },
    "rule": {
        "id": "0199e3c6-a7d2-7b18-8c3e-91f04d6b5a2c",
        "name": "URL in tool response (staging)"
    },
    "span": {
        "id": "578329e307b4240c"
    },
    "trace": {
        "id": "9b0de9f867223c404f6dc01a165db75d"
    }
}
{
    "message": "alice@example.com (11111111-1111-1111-1111-111111111111) created dashboard (0199e3e1-6b2d-7f35-a9c4-8e1b0d7f2a63)",
    "event": {
        "action": "create",
        "category": [
            "configuration"
        ],
        "dataset": "blue41.audit",
        "kind": "event",
        "module": "blue41",
        "outcome": "success",
        "severity": 25,
        "type": [
            "creation"
        ],
        "url": "https://blue41.example.com/settings/audit-logs"
    },
    "@timestamp": "2026-10-01T11:20:09.650938Z",
    "blue41": {
        "actor": {
            "type": "user"
        },
        "audit": {
            "resource_id": "0199e3e1-6b2d-7f35-a9c4-8e1b0d7f2a63",
            "resource_kind": "dashboard"
        },
        "event_id": "7bc539e7744c6346683d3f7865117a466e86d7c4ca0e5efa1d98984a52caff61"
    },
    "http": {
        "request": {
            "method": "POST"
        },
        "response": {
            "status_code": 201
        }
    },
    "log": {
        "level": "info"
    },
    "observer": {
        "product": "Blue41",
        "type": "sensor",
        "vendor": "Blue41"
    },
    "organization": {
        "id": "11111111"
    },
    "related": {
        "ip": [
            "2001:db8::7"
        ],
        "user": [
            "alice"
        ]
    },
    "source": {
        "address": "2001:db8::7",
        "ip": "2001:db8::7",
        "port": 51234
    },
    "span": {
        "id": "970d8190a4e8ef79"
    },
    "trace": {
        "id": "cf059fa7a04ca8f42b2084994a13a078"
    },
    "url": {
        "path": "/api/v1/dashboards"
    },
    "user": {
        "email": "alice@example.com",
        "id": "11111111-1111-1111-1111-111111111111",
        "name": "alice"
    },
    "user_agent": {
        "device": {
            "name": "Mac"
        },
        "name": "Chrome",
        "original": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36",
        "os": {
            "name": "Mac OS X",
            "version": "10.15.7"
        },
        "version": "141.0.0"
    }
}
{
    "message": "alice@example.com failed to create session",
    "event": {
        "action": "create",
        "category": [
            "authentication"
        ],
        "dataset": "blue41.audit",
        "kind": "event",
        "module": "blue41",
        "outcome": "failure",
        "severity": 75,
        "type": [
            "start"
        ],
        "url": "https://blue41.example.com/settings/audit-logs"
    },
    "@timestamp": "2026-10-01T11:07:05.903117Z",
    "blue41": {
        "actor": {
            "type": "user"
        },
        "audit": {
            "resource_kind": "session"
        },
        "event_id": "26dc3f58f4fe21f7fadfdec1acfe5fad88be2fbcd7b54731238530c04d15d9c0"
    },
    "http": {
        "request": {
            "method": "POST"
        },
        "response": {
            "status_code": 401
        }
    },
    "log": {
        "level": "error"
    },
    "observer": {
        "product": "Blue41",
        "type": "sensor",
        "vendor": "Blue41"
    },
    "organization": {
        "id": "11111111"
    },
    "related": {
        "ip": [
            "203.0.113.45"
        ],
        "user": [
            "alice"
        ]
    },
    "source": {
        "address": "203.0.113.45",
        "ip": "203.0.113.45",
        "port": 60412
    },
    "span": {
        "id": "3080c609747b6d1f"
    },
    "trace": {
        "id": "699bf47499f754cb619ebe5cdea3e659"
    },
    "url": {
        "path": "/api/v2/sessions/email_password"
    },
    "user": {
        "email": "alice@example.com",
        "name": "alice"
    },
    "user_agent": {
        "device": {
            "name": "Mac"
        },
        "name": "Chrome",
        "original": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36",
        "os": {
            "name": "Mac OS X",
            "version": "10.15.7"
        },
        "version": "141.0.0"
    }
}
{
    "message": "alice@example.com (11111111-1111-1111-1111-111111111111) updated rule (0199e3c4-5b7a-7d21-9f4e-2a6c8b1d3e57)",
    "event": {
        "action": "update",
        "category": [
            "configuration"
        ],
        "dataset": "blue41.audit",
        "kind": "event",
        "module": "blue41",
        "outcome": "success",
        "severity": 25,
        "type": [
            "change"
        ],
        "url": "https://blue41.example.com/settings/audit-logs"
    },
    "@timestamp": "2026-10-01T11:02:37.418265Z",
    "blue41": {
        "actor": {
            "type": "user"
        },
        "audit": {
            "resource_id": "0199e3c4-5b7a-7d21-9f4e-2a6c8b1d3e57",
            "resource_kind": "rule"
        },
        "event_id": "ede890bbeb88fddfde72523daf6f7f868c593398abb7c7bcfa9ce96a77c8958c"
    },
    "http": {
        "request": {
            "method": "PUT"
        },
        "response": {
            "status_code": 200
        }
    },
    "log": {
        "level": "info"
    },
    "observer": {
        "product": "Blue41",
        "type": "sensor",
        "vendor": "Blue41"
    },
    "organization": {
        "id": "11111111"
    },
    "related": {
        "ip": [
            "198.51.100.7"
        ],
        "user": [
            "alice"
        ]
    },
    "source": {
        "address": "198.51.100.7",
        "ip": "198.51.100.7",
        "port": 51234
    },
    "span": {
        "id": "97d062ab5f8d8aad"
    },
    "trace": {
        "id": "cae6a49390fd5beaebaab1ef670cdfd4"
    },
    "url": {
        "path": "/api/v2/rules/0199e3c4-5b7a-7d21-9f4e-2a6c8b1d3e57"
    },
    "user": {
        "email": "alice@example.com",
        "id": "11111111-1111-1111-1111-111111111111",
        "name": "alice"
    },
    "user_agent": {
        "device": {
            "name": "Mac"
        },
        "name": "Chrome",
        "original": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36",
        "os": {
            "name": "Mac OS X",
            "version": "10.15.7"
        },
        "version": "141.0.0"
    }
}
{
    "message": "alice@example.com (11111111-1111-1111-1111-111111111111) updated rule (0199e3c9-12f0-7a44-b3d8-6e0f9c27a1b4)",
    "event": {
        "action": "update",
        "category": [
            "configuration"
        ],
        "dataset": "blue41.audit",
        "kind": "event",
        "module": "blue41",
        "outcome": "success",
        "severity": 25,
        "type": [
            "change"
        ],
        "url": "https://blue41.example.com/settings/audit-logs"
    },
    "@timestamp": "2026-10-01T11:31:44.210576Z",
    "blue41": {
        "actor": {
            "type": "user"
        },
        "audit": {
            "resource_id": "0199e3c9-12f0-7a44-b3d8-6e0f9c27a1b4",
            "resource_kind": "rule"
        },
        "event_id": "6f128beca1763550305a238f150df4873754362bd8343c6cf46757e4d0be74b6"
    },
    "http": {
        "request": {
            "method": "PUT"
        },
        "response": {
            "status_code": 200
        }
    },
    "log": {
        "level": "info"
    },
    "observer": {
        "product": "Blue41",
        "type": "sensor",
        "vendor": "Blue41"
    },
    "organization": {
        "id": "11111111"
    },
    "related": {
        "user": [
            "alice"
        ]
    },
    "span": {
        "id": "f8490939481ee862"
    },
    "trace": {
        "id": "624c713b18bd8db833ac3d2e1ae950c3"
    },
    "url": {
        "path": "/api/v2/rules/0199e3c9-12f0-7a44-b3d8-6e0f9c27a1b4"
    },
    "user": {
        "email": "alice@example.com",
        "id": "11111111-1111-1111-1111-111111111111",
        "name": "alice"
    },
    "user_agent": {
        "device": {
            "name": "Mac"
        },
        "name": "Chrome",
        "original": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36",
        "os": {
            "name": "Mac OS X",
            "version": "10.15.7"
        },
        "version": "141.0.0"
    }
}
{
    "message": "updated rule (0199e3d2-8c41-7e09-a5b6-3f7d1e48c920)",
    "event": {
        "action": "update",
        "category": [
            "configuration"
        ],
        "dataset": "blue41.audit",
        "kind": "event",
        "module": "blue41",
        "outcome": "success",
        "severity": 25,
        "type": [
            "change"
        ],
        "url": "https://blue41.example.com/settings/audit-logs"
    },
    "@timestamp": "2026-10-01T11:40:00.004821Z",
    "blue41": {
        "actor": {
            "type": "system"
        },
        "audit": {
            "resource_id": "0199e3d2-8c41-7e09-a5b6-3f7d1e48c920",
            "resource_kind": "rule"
        },
        "event_id": "8c20bdc6e17dd9c5343a1c18db8b9ed236437dfa32c7c5023a3006d9c2143709"
    },
    "http": {
        "request": {
            "method": "PUT"
        },
        "response": {
            "status_code": 200
        }
    },
    "log": {
        "level": "info"
    },
    "observer": {
        "product": "Blue41",
        "type": "sensor",
        "vendor": "Blue41"
    },
    "organization": {
        "id": "11111111"
    },
    "span": {
        "id": "8efb502b414ef1d9"
    },
    "trace": {
        "id": "1ea16bb209016f68ee70659042063bbc"
    },
    "url": {
        "path": "/api/v2/rules/0199e3d2-8c41-7e09-a5b6-3f7d1e48c920"
    }
}
{
    "message": "alice@example.com (11111111-1111-1111-1111-111111111111) read traces",
    "event": {
        "action": "read",
        "category": [
            "api"
        ],
        "dataset": "blue41.audit",
        "kind": "event",
        "module": "blue41",
        "outcome": "success",
        "severity": 25,
        "type": [
            "access"
        ],
        "url": "https://blue41.example.com/settings/audit-logs"
    },
    "@timestamp": "2026-10-01T11:12:48.077402Z",
    "blue41": {
        "actor": {
            "type": "user"
        },
        "audit": {
            "resource_kind": "traces"
        },
        "event_id": "4de73190f9dfa3e0b2bb8c47d4e4a5a98b80dac1889f82e2fa1ea35dd2bf22cd"
    },
    "http": {
        "request": {
            "method": "POST"
        },
        "response": {
            "status_code": 200
        }
    },
    "log": {
        "level": "info"
    },
    "observer": {
        "product": "Blue41",
        "type": "sensor",
        "vendor": "Blue41"
    },
    "organization": {
        "id": "11111111"
    },
    "related": {
        "ip": [
            "198.51.100.7"
        ],
        "user": [
            "alice"
        ]
    },
    "source": {
        "address": "198.51.100.7",
        "ip": "198.51.100.7",
        "port": 51240
    },
    "span": {
        "id": "4e3f6b842d925420"
    },
    "trace": {
        "id": "cfaba8ee7a9efa4b613d57b0ba796fca"
    },
    "url": {
        "path": "/api/v1/export_raw_data"
    },
    "user": {
        "email": "alice@example.com",
        "id": "11111111-1111-1111-1111-111111111111",
        "name": "alice"
    },
    "user_agent": {
        "device": {
            "name": "Mac"
        },
        "name": "Chrome",
        "original": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36",
        "os": {
            "name": "Mac OS X",
            "version": "10.15.7"
        },
        "version": "141.0.0"
    }
}

Extracted Fields

The following table lists the fields that are extracted, normalized under the ECS format, analyzed and indexed by the parser. It should be noted that infered fields are not listed.

Name Type Description
@timestamp date Date/time when the event originated.
blue41.actor.type keyword Principal class that performed an audited action. One of user, service_account, system, anonymous.
blue41.alert.fingerprint keyword Hash of the alert's query-result labels, as a decimal string. Not unique on its own — two rules matching the same span share a fingerprint — so alert similarity must pair it with rule.id.
blue41.audit.resource_id keyword Identifier of the resource the audited action targeted.
blue41.audit.resource_kind keyword Kind of resource the audited action targeted, e.g. rule, dashboard, session.
blue41.event_id keyword Identifier Blue41 assigns to the exported event, stable across redeliveries.
destination.domain keyword The domain name of the destination.
event.action keyword The action captured by the event.
event.category keyword Event category. The second categorization field in the hierarchy.
event.dataset keyword Name of the dataset.
event.kind keyword The kind of the event. The highest categorization field in the hierarchy.
event.module keyword Name of the module this data is coming from.
event.outcome keyword The outcome of the event. The lowest level categorization field in the hierarchy.
event.reason keyword Reason why this event happened, according to the source
event.severity long Numeric severity of the event.
event.type keyword Event type. The third categorization field in the hierarchy.
event.url keyword Event investigation URL
host.name keyword Name of the host.
http.request.method keyword HTTP request method.
http.response.status_code long HTTP response status code.
log.level keyword Log level of the log event.
message match_only_text Log message optimized for viewing in a log viewer.
observer.product keyword The product name of the observer.
observer.type keyword The type of the observer the data is coming from.
observer.vendor keyword Vendor name of the observer.
organization.id keyword Unique identifier for the organization.
process.name keyword Process name.
rule.id keyword Rule ID
rule.name keyword Rule name
rule.ruleset keyword Rule ruleset
service.name keyword Name of the service.
source.address keyword Source network address.
source.ip ip IP address of the source.
source.port long Port of the source.
span.id keyword Unique identifier of the span within the scope of its trace.
trace.id keyword Unique identifier of the trace.
url.path wildcard Path of the request, such as "/search".
user.email keyword User email address.
user.id keyword Unique identifier of the user.
user.name keyword Short name or login of the user.
user_agent.original keyword Unparsed user_agent string.

For more information on the Intake Format, please find the code of the Parser, Smart Descriptions, and Supported Events here.

Further reading