Microsoft Sentinel Analytic Rules
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ApexOne - Suspicious connections

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Id9e3dc038-67b7-11ec-90d6-0242ac120003
RulenameApexOne - Suspicious connections
DescriptionDetects suspicious connections.
SeverityHigh
TacticsCommandAndControl
TechniquesT1102
Required data connectorsTrendMicroApexOne
TrendMicroApexOneAma
KindScheduled
Query frequency1h
Query period1h
Trigger threshold0
Trigger operatorgt
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Trend Micro Apex One/Analytic Rules/TMApexOneSuspiciousConnections.yaml
Version1.0.1
Arm template9e3dc038-67b7-11ec-90d6-0242ac120003.json
Deploy To Azure
TMApexOneEvent
| where EventMessage has "Suspicious Connection"
| where NetworkDirection == 1 
| where DvcAction in ('1', '3')
| extend IPCustomEntity = SrcIpAddr, AccountCustomEntity = DstUserName
kind: Scheduled
status: Available
triggerThreshold: 0
relevantTechniques:
- T1102
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Trend Micro Apex One/Analytic Rules/TMApexOneSuspiciousConnections.yaml
requiredDataConnectors:
- dataTypes:
  - TMApexOneEvent
  connectorId: TrendMicroApexOne
- dataTypes:
  - TMApexOneEvent
  connectorId: TrendMicroApexOneAma
queryPeriod: 1h
tactics:
- CommandAndControl
severity: High
triggerOperator: gt
description: |
    'Detects suspicious connections.'
query: |
  TMApexOneEvent
  | where EventMessage has "Suspicious Connection"
  | where NetworkDirection == 1 
  | where DvcAction in ('1', '3')
  | extend IPCustomEntity = SrcIpAddr, AccountCustomEntity = DstUserName  
name: ApexOne - Suspicious connections
version: 1.0.1
id: 9e3dc038-67b7-11ec-90d6-0242ac120003
queryFrequency: 1h
entityMappings:
- entityType: IP
  fieldMappings:
  - columnName: IPCustomEntity
    identifier: Address
- entityType: Account
  fieldMappings:
  - columnName: AccountCustomEntity
    identifier: Name
{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "apiVersion": "2023-02-01-preview",
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/9e3dc038-67b7-11ec-90d6-0242ac120003')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/9e3dc038-67b7-11ec-90d6-0242ac120003')]",
      "properties": {
        "alertRuleTemplateName": "9e3dc038-67b7-11ec-90d6-0242ac120003",
        "customDetails": null,
        "description": "'Detects suspicious connections.'\n",
        "displayName": "ApexOne - Suspicious connections",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "IPCustomEntity",
                "identifier": "Address"
              }
            ]
          },
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "AccountCustomEntity",
                "identifier": "Name"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Trend Micro Apex One/Analytic Rules/TMApexOneSuspiciousConnections.yaml",
        "query": "TMApexOneEvent\n| where EventMessage has \"Suspicious Connection\"\n| where NetworkDirection == 1 \n| where DvcAction in ('1', '3')\n| extend IPCustomEntity = SrcIpAddr, AccountCustomEntity = DstUserName\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "PT1H",
        "severity": "High",
        "status": "Available",
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "CommandAndControl"
        ],
        "techniques": [
          "T1102"
        ],
        "templateVersion": "1.0.1",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}