Sentinel One - Agent uninstalled from multiple hosts

SentinelOne
| where ActivityType == 31
| summarize count() by DataComputerName, bin(TimeGenerated, 30m)
| where count_ > 1
| extend HostCustomEntity = DataComputerName

relevantTechniques:
- T1070
name: Sentinel One - Agent uninstalled from multiple hosts
requiredDataConnectors:
- dataTypes:
  - SentinelOne
  connectorId: SentinelOne
entityMappings:
- fieldMappings:
  - identifier: HostName
    columnName: HostCustomEntity
  entityType: Host
triggerThreshold: 0
id: 4ad87e4a-d045-4c6b-9652-c9de27fcb442
tactics:
- DefenseEvasion
version: 1.0.1
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/SentinelOne/Analytic Rules/SentinelOneAgentUninstalled.yaml
queryPeriod: 1h
kind: Scheduled
queryFrequency: 1h
severity: High
status: Available
description: |
    'Detects when agent was uninstalled from multiple hosts.'
query: |
  SentinelOne
  | where ActivityType == 31
  | summarize count() by DataComputerName, bin(TimeGenerated, 30m)
  | where count_ > 1
  | extend HostCustomEntity = DataComputerName  
triggerOperator: gt

{
  "$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/4ad87e4a-d045-4c6b-9652-c9de27fcb442')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/4ad87e4a-d045-4c6b-9652-c9de27fcb442')]",
      "properties": {
        "alertRuleTemplateName": "4ad87e4a-d045-4c6b-9652-c9de27fcb442",
        "customDetails": null,
        "description": "'Detects when agent was uninstalled from multiple hosts.'\n",
        "displayName": "Sentinel One - Agent uninstalled from multiple hosts",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "HostCustomEntity",
                "identifier": "HostName"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/SentinelOne/Analytic Rules/SentinelOneAgentUninstalled.yaml",
        "query": "SentinelOne\n| where ActivityType == 31\n| summarize count() by DataComputerName, bin(TimeGenerated, 30m)\n| where count_ > 1\n| extend HostCustomEntity = DataComputerName\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "PT1H",
        "severity": "High",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "DefenseEvasion"
        ],
        "techniques": [
          "T1070"
        ],
        "templateVersion": "1.0.1",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}