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Vaikora - Behavioral anomaly detected

Description

Identifies AI agent behavioral anomalies flagged by Vaikora with an anomaly score of 0.7 or above, indicating significant deviation from the agent's established behavioral baseline.
Rule type
Scheduled
Version
1.0.0
Declared status
Available
Query frequency
30m
Query period
1h
Trigger
GreaterThan 0

Declared MITRE coverage

Declared sources

Metadata from the source file. No dependencies inferred from KQL.

Connectors

Data types

KQL query

Original query, unchanged.

Vaikora_AgentSignals_CL
| where TimeGenerated > ago(1h)
| where is_anomaly_b == true
| where anomaly_score_d >= 0.7
| summarize
    AnomalyCount = count(),
    MaxAnomalyScore = max(anomaly_score_d),
    AvgAnomalyScore = avg(anomaly_score_d),
    AnomalyReasons = make_set(anomaly_reason_s),
    ActionTypes = make_set(action_type_s)
  by AgentId = agent_id_s, Severity = severity_s
| extend
    ReasonList = strcat_array(AnomalyReasons, "; "),
    ActionList = strcat_array(ActionTypes, ", ")

Declared entities

Account

Related content

Links established from declared identifiers and solution manifests.

Source provenance

GitHub

Displayed values come from files in Azure/Azure-Sentinel. They describe the published template, not your workspace configuration.

Source identifier
e61258ec-1a7f-454c-95b5-458a6edb1ea4
Additional source files 2Solutions/Vaikora-Sentinel/Analytic Rules/Vaikora - Behavioral Anomaly Detected.yamlsource ↗Solutions/Vaikora-Sentinel/Data/Solution_Vaikora.jsonsolution-membership ↗
GSTEP / CATALOG TRACKING

Added to catalog : 16 Sept 2026 · 05:49 UTC
Last change observed : 16 Sept 2026 · 05:49 UTC

GSTEP sync dates, separate from the source content’s publication dates.