Theom High Risks | Microsoft Sentinel Analytic Rules

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Id	74b80987-0a62-448c-8779-47b02e17d3cf
Rulename	Theom High Risks
Description	“Creates Microsoft Sentinel incidents for high risk Theom alerts.”
Severity	High
Tactics	Collection CommandAndControl CredentialAccess DefenseEvasion Discovery Exfiltration Impact Reconnaissance
Techniques	T1592 T1589 T1070 T1552 T1619 T1119 T1560 T1530 T1213 T1001 T1041 T1537 T1485 T1486 T1565
Required data connectors	Theom
Kind	Scheduled
Query frequency	5m
Query period	5m
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Theom/Analytic%20Rules/TheomRisksHigh.yaml
Version	1.0.2
Arm template	74b80987-0a62-448c-8779-47b02e17d3cf.json

KQL

TheomAlerts_CL
 | where priority_s == "P2"

YAML

queryFrequency: 5m
entityMappings:
- fieldMappings:
  - columnName: customProps_AssetName_s
    identifier: Name
  entityType: CloudApplication
- fieldMappings:
  - columnName: deepLink_s
    identifier: Url
  entityType: URL
triggerThreshold: 0
triggerOperator: gt
severity: High
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Theom/Analytic%20Rules/TheomRisksHigh.yaml
eventGroupingSettings:
  aggregationKind: AlertPerResult
alertDetailsOverride:
  alertDisplayNameFormat: 'Theom Alert ID: {{id_s}} '
  alertDescriptionFormat: |2

    Summary: {{summary_s}}  
    Additional info: {{details_s}}
    Please investigate further on Theom UI at {{deepLink_s}}
query: |
  TheomAlerts_CL
   | where priority_s == "P2"
tactics:
- Collection
- CommandAndControl
- CredentialAccess
- DefenseEvasion
- Discovery
- Exfiltration
- Impact
- Reconnaissance
queryPeriod: 5m
relevantTechniques:
- T1592
- T1589
- T1070
- T1552
- T1619
- T1119
- T1560
- T1530
- T1213
- T1001
- T1041
- T1537
- T1485
- T1486
- T1565
requiredDataConnectors:
- connectorId: Theom
  dataTypes:
  - TheomAlerts_CL
id: 74b80987-0a62-448c-8779-47b02e17d3cf
kind: Scheduled
version: 1.0.2
description: |
  "Creates Microsoft Sentinel incidents for high risk Theom alerts."
status: Available
name: Theom High Risks

ARM

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "apiVersion": "2024-01-01-preview",
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/74b80987-0a62-448c-8779-47b02e17d3cf')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/74b80987-0a62-448c-8779-47b02e17d3cf')]",
      "properties": {
        "alertDetailsOverride": {
          "alertDescriptionFormat": "\nSummary: {{summary_s}}  \nAdditional info: {{details_s}}\nPlease investigate further on Theom UI at {{deepLink_s}}\n",
          "alertDisplayNameFormat": "Theom Alert ID: {{id_s}} "
        },
        "alertRuleTemplateName": "74b80987-0a62-448c-8779-47b02e17d3cf",
        "customDetails": null,
        "description": "\"Creates Microsoft Sentinel incidents for high risk Theom alerts.\"\n",
        "displayName": "Theom High Risks",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "CloudApplication",
            "fieldMappings": [
              {
                "columnName": "customProps_AssetName_s",
                "identifier": "Name"
              }
            ]
          },
          {
            "entityType": "URL",
            "fieldMappings": [
              {
                "columnName": "deepLink_s",
                "identifier": "Url"
              }
            ]
          }
        ],
        "eventGroupingSettings": {
          "aggregationKind": "AlertPerResult"
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Theom/Analytic%20Rules/TheomRisksHigh.yaml",
        "query": "TheomAlerts_CL\n | where priority_s == \"P2\"\n",
        "queryFrequency": "PT5M",
        "queryPeriod": "PT5M",
        "severity": "High",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Collection",
          "CommandAndControl",
          "CredentialAccess",
          "DefenseEvasion",
          "Discovery",
          "Exfiltration",
          "Impact",
          "Reconnaissance"
        ],
        "techniques": [
          "T1001",
          "T1041",
          "T1070",
          "T1119",
          "T1213",
          "T1485",
          "T1486",
          "T1530",
          "T1537",
          "T1552",
          "T1560",
          "T1565",
          "T1589",
          "T1592",
          "T1619"
        ],
        "templateVersion": "1.0.2",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}