M2131_RecommendedDatatableUnhealthy

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Id	c61b167a-59ae-42af-bc98-36c78c5acb5c
Rulename	M2131_RecommendedDatatableUnhealthy
Description	This alert is designed to monitor recommended data tables aligned to the Maturity Model for Event Log Management (M-21-31) standard. The alert triggers when a recommended data table hasn’t been observed in over 48 hours.
Severity	Medium
Tactics	Discovery
Techniques	T1082
Kind	Scheduled
Query frequency	1d
Query period	14d
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/MaturityModelForEventLogManagementM2131/Analytic Rules/M2131RecommendedDatatableUnhealthy.yaml
Version	1.0.0
Arm template	c61b167a-59ae-42af-bc98-36c78c5acb5c.json

KQL

let M2131Mapping = datatable(DataTable:string, MaturityLevel:string)
[
"SigninLogs",	"Event Logging (EL0)",
"AADManagedIdentitySignInLogs", "Event Logging (EL0)",
"AADServicePrincipalSignInLogs",	"Event Logging (EL0)",
"StorageBlobLogs",	"Event Logging (EL0)",
"StorageFileLogs",	"Event Logging (EL0)",
"AzureMetrics",	"Event Logging (EL0)",
"AuditLogs",	"Event Logging (EL0)",
"IdentityInfo",	"Event Logging (EL0)",
"CommonSecurityLog",	"Event Logging (EL0)",
"ThreatIntelligenceIndicator",	"Event Logging (EL0)",
"DeviceNetworkInfo",	"Event Logging (EL0)",
"DnsEvents",	"Event Logging (EL0)",
"DeviceNetworkEvents",	"Event Logging (EL0)",
"AzureDiagnostics",	"Event Logging (EL0)",
"Usage",	"Event Logging (EL0)",
"SecurityIncident",	"Event Logging (EL0)",
"SecurityAlert",	"Event Logging (EL0)",
"AzureActivity",	"Event Logging (EL0)",
"Heartbeat",	"Event Logging (EL0)",
"OfficeActivity",	"Event Logging (EL0)",
"SecurityEvent",	"Event Logging (EL0)",
"Syslog",	"Event Logging (EL0)",
"AWSCloudTrail",	"Event Logging (EL0)",
"GWorkspaceActivityReports",	"Event Logging (EL0)",
"AWSGuardDuty",	"Event Logging (EL0)",
"AWSVPCFlow",	"Event Logging (EL0)",
"Perf",	"Basic Event Logging (EL1)",
"SentinelHealth",	"Basic Event Logging (EL1)",
"DeviceLogonEvents",	"Basic Event Logging (EL1)",
"DeviceEvents",	"Basic Event Logging (EL1)",
"DeviceNetworkEvents",	"Basic Event Logging (EL1)",
"DeviceFileEvents",	"Basic Event Logging (EL1)",
"DeviceRegistryEvents",	"Basic Event Logging (EL1)",
"DeviceProcessEvents",	"Basic Event Logging (EL1)",
"VMConnection",	"Basic Event Logging (EL1)",
"EmailEvents",	"Basic Event Logging (EL1)",
"ThreatIntelligenceIndicator",	"Basic Event Logging (EL1)",
"SecurityRecommendation",	"Basic Event Logging (EL1)",
"DeviceProcessEvents",	"Basic Event Logging (EL1)",
"ConfigurationData",	"Basic Event Logging (EL1)",
"ConfigurationChange",	"Basic Event Logging (EL1)",
"GatewayDiagnosticLog",	"Basic Event Logging (EL1)",
"TunnelDiagnosticLog",	"Basic Event Logging (EL1)",
"IKEDiagnosticLog",	"Basic Event Logging (EL1)",
"RouteDiagnosticLog",	"Basic Event Logging (EL1)",
"PS2DiagnosticLog",	"Basic Event Logging (EL1)",
"Event",	"Basic Event Logging (EL1)",
"SqlAtpStatus",	"Basic Event Logging (EL1)",
"ConstainerInstanceLog_CL",	"Basic Event Logging (EL1)",
"ContainerEvent_CL",	"Basic Event Logging (EL1)",
"InsightsMetrics",	"Intermediate Event Logging (EL2)",
"EmailUrlInfo",	"Intermediate Event Logging (EL2)",
"EmailAttachmentInfo",	"Intermediate Event Logging (EL2)",
"InformationProtectionLogs_CL",	"Intermediate Event Logging (EL2)",
"CloudAppEvents",	"Intermediate Event Logging (EL2)",
"ContainerInventory",	"Intermediate Event Logging (EL2)",
"Update",	"Advanced Event Logging (EL3)",
"BehaviorAnalytics",	"Advanced Event Logging (EL3)",
"Anomalies",	"Advanced Event Logging (EL3)",
"SecurityRegulatoryCompliance",	"Advanced Event Logging (EL3)"
];
let LastLogTime = Usage
| summarize LastLog_Time = arg_max(TimeGenerated, *) by DataType;
Usage
| summarize last_log = datetime_diff("day",now(), max(TimeGenerated)) by DataType
| where last_log > 0
| join kind=inner (LastLogTime) on DataType
| project DataTable = DataType, ['Last Log Received'] = last_log, LastLog_Time
| where ['Last Log Received'] > 2
| join kind=inner (M2131Mapping) on DataTable
| project-away DataTable1
| order by ['Last Log Received'] desc
| extend CloudApplication = DataTable

YAML

relevantTechniques:
- T1082
entityMappings:
- entityType: CloudApplication
  fieldMappings:
  - columnName: DataTable
    identifier: Name
version: 1.0.0
id: c61b167a-59ae-42af-bc98-36c78c5acb5c
severity: Medium
kind: Scheduled
queryFrequency: 1d
description: |
    'This alert is designed to monitor recommended data tables aligned to the Maturity Model for Event Log Management (M-21-31) standard. The alert triggers when a recommended data table hasn't been observed in over 48 hours.'
requiredDataConnectors: []
triggerOperator: gt
name: M2131_RecommendedDatatableUnhealthy
tactics:
- Discovery
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/MaturityModelForEventLogManagementM2131/Analytic Rules/M2131RecommendedDatatableUnhealthy.yaml
triggerThreshold: 0
queryPeriod: 14d
query: |
  let M2131Mapping = datatable(DataTable:string, MaturityLevel:string)
  [
  "SigninLogs",	"Event Logging (EL0)",
  "AADManagedIdentitySignInLogs", "Event Logging (EL0)",
  "AADServicePrincipalSignInLogs",	"Event Logging (EL0)",
  "StorageBlobLogs",	"Event Logging (EL0)",
  "StorageFileLogs",	"Event Logging (EL0)",
  "AzureMetrics",	"Event Logging (EL0)",
  "AuditLogs",	"Event Logging (EL0)",
  "IdentityInfo",	"Event Logging (EL0)",
  "CommonSecurityLog",	"Event Logging (EL0)",
  "ThreatIntelligenceIndicator",	"Event Logging (EL0)",
  "DeviceNetworkInfo",	"Event Logging (EL0)",
  "DnsEvents",	"Event Logging (EL0)",
  "DeviceNetworkEvents",	"Event Logging (EL0)",
  "AzureDiagnostics",	"Event Logging (EL0)",
  "Usage",	"Event Logging (EL0)",
  "SecurityIncident",	"Event Logging (EL0)",
  "SecurityAlert",	"Event Logging (EL0)",
  "AzureActivity",	"Event Logging (EL0)",
  "Heartbeat",	"Event Logging (EL0)",
  "OfficeActivity",	"Event Logging (EL0)",
  "SecurityEvent",	"Event Logging (EL0)",
  "Syslog",	"Event Logging (EL0)",
  "AWSCloudTrail",	"Event Logging (EL0)",
  "GWorkspaceActivityReports",	"Event Logging (EL0)",
  "AWSGuardDuty",	"Event Logging (EL0)",
  "AWSVPCFlow",	"Event Logging (EL0)",
  "Perf",	"Basic Event Logging (EL1)",
  "SentinelHealth",	"Basic Event Logging (EL1)",
  "DeviceLogonEvents",	"Basic Event Logging (EL1)",
  "DeviceEvents",	"Basic Event Logging (EL1)",
  "DeviceNetworkEvents",	"Basic Event Logging (EL1)",
  "DeviceFileEvents",	"Basic Event Logging (EL1)",
  "DeviceRegistryEvents",	"Basic Event Logging (EL1)",
  "DeviceProcessEvents",	"Basic Event Logging (EL1)",
  "VMConnection",	"Basic Event Logging (EL1)",
  "EmailEvents",	"Basic Event Logging (EL1)",
  "ThreatIntelligenceIndicator",	"Basic Event Logging (EL1)",
  "SecurityRecommendation",	"Basic Event Logging (EL1)",
  "DeviceProcessEvents",	"Basic Event Logging (EL1)",
  "ConfigurationData",	"Basic Event Logging (EL1)",
  "ConfigurationChange",	"Basic Event Logging (EL1)",
  "GatewayDiagnosticLog",	"Basic Event Logging (EL1)",
  "TunnelDiagnosticLog",	"Basic Event Logging (EL1)",
  "IKEDiagnosticLog",	"Basic Event Logging (EL1)",
  "RouteDiagnosticLog",	"Basic Event Logging (EL1)",
  "PS2DiagnosticLog",	"Basic Event Logging (EL1)",
  "Event",	"Basic Event Logging (EL1)",
  "SqlAtpStatus",	"Basic Event Logging (EL1)",
  "ConstainerInstanceLog_CL",	"Basic Event Logging (EL1)",
  "ContainerEvent_CL",	"Basic Event Logging (EL1)",
  "InsightsMetrics",	"Intermediate Event Logging (EL2)",
  "EmailUrlInfo",	"Intermediate Event Logging (EL2)",
  "EmailAttachmentInfo",	"Intermediate Event Logging (EL2)",
  "InformationProtectionLogs_CL",	"Intermediate Event Logging (EL2)",
  "CloudAppEvents",	"Intermediate Event Logging (EL2)",
  "ContainerInventory",	"Intermediate Event Logging (EL2)",
  "Update",	"Advanced Event Logging (EL3)",
  "BehaviorAnalytics",	"Advanced Event Logging (EL3)",
  "Anomalies",	"Advanced Event Logging (EL3)",
  "SecurityRegulatoryCompliance",	"Advanced Event Logging (EL3)"
  ];
  let LastLogTime = Usage
  | summarize LastLog_Time = arg_max(TimeGenerated, *) by DataType;
  Usage
  | summarize last_log = datetime_diff("day",now(), max(TimeGenerated)) by DataType
  | where last_log > 0
  | join kind=inner (LastLogTime) on DataType
  | project DataTable = DataType, ['Last Log Received'] = last_log, LastLog_Time
  | where ['Last Log Received'] > 2
  | join kind=inner (M2131Mapping) on DataTable
  | project-away DataTable1
  | order by ['Last Log Received'] desc
  | extend CloudApplication = DataTable  
status: Available

ARM