Description
'This alert is designed to monitor assets within the Maturity Model for Event Log Management (M-21-31) standard. The alert triggers when a monitored asset fails to provide a heartbeat within 24 hours.'
- Rule type
- Scheduled
- Version
- 1.0.0
- Declared status
- Available
- Query frequency
- 1d
- Query period
- 14d
- Trigger
- gt 0
Declared MITRE coverage
KQL query
Original query, unchanged.
let LastHeartbeatTime = Heartbeat
| summarize LastHeartbeat_Time = arg_max(TimeGenerated, *) by ResourceId;
Heartbeat
| where TimeGenerated > ago(14d)
| summarize LastHeartbeat_Hours = datetime_diff("hour",now(), max(TimeGenerated)) by ResourceId
| where ResourceId <> ""
| where ResourceId <> "None"
| join kind=inner (LastHeartbeatTime) on ResourceId
| where LastHeartbeat_Hours > 24
| project LastHeartbeat_Hours, LastHeartbeat_Time, Computer, ComputerIP, Category, OSType, OSName, ResourceId, SubscriptionId, ResourceGroup, RemoteIPCountry
| sort by LastHeartbeat_Hours desc
Declared entities
Related content
Links established from declared identifiers and solution manifests.
Source provenance
GitHubDisplayed values come from files in Azure/Azure-Sentinel. They describe the published template, not your workspace configuration.
- File
- Solutions/MaturityModelForEventLogManagementM2131/Analytic Rules/M2131AssetStoppedLogging.yaml ↗
- Commit
9800e51↗- Source identifier
4be5b645-1d08-49e4-b58d-07294ff19223
GSTEP / CATALOG TRACKING
Added to catalog : 16 Sept 2026 · 05:49 UTC
Last change observed : 16 Sept 2026 · 05:49 UTC