Microsoft Sentinel Analytic Rules
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Cynerio - Suspicious Connection to External Address

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Idc0756978-baa6-4239-9174-bac1b1ca1a6a
RulenameCynerio - Suspicious Connection to External Address
DescriptionSuspicious Connection to External Address
SeverityHigh
TacticsLateralMovement
TechniquesT0866
Required data connectorsCynerioSecurityEvents
KindScheduled
Query frequency5h
Query period5h
Trigger threshold0
Trigger operatorgt
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cynerio/Analytic Rules/SuspiciousConnections.yaml
Version1.0.0
Arm templatec0756978-baa6-4239-9174-bac1b1ca1a6a.json
Deploy To Azure
CynerioEvent_CL
| where TimeGenerated > ago(24h)
| where module_s == 'IDS'
| where title_s == 'Suspicious Connection'
query: |
  CynerioEvent_CL
  | where TimeGenerated > ago(24h)
  | where module_s == 'IDS'
  | where title_s == 'Suspicious Connection'  
queryFrequency: 5h
entityMappings:
- fieldMappings:
  - identifier: Address
    columnName: asset_ip_s
  entityType: IP
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cynerio/Analytic Rules/SuspiciousConnections.yaml
queryPeriod: 5h
kind: Scheduled
version: 1.0.0
triggerOperator: gt
eventGroupingSettings:
  aggregationKind: SingleAlert
tactics:
- LateralMovement
relevantTechniques:
- T0866
name: Cynerio - Suspicious Connection to External Address
triggerThreshold: 0
severity: High
customDetails:
  Hostname: host_s
  DstIP: dst_ip_s
description: Suspicious Connection to External Address
requiredDataConnectors:
- dataTypes:
  - CynerioEvent_CL
  connectorId: CynerioSecurityEvents
id: c0756978-baa6-4239-9174-bac1b1ca1a6a
{
  "$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/c0756978-baa6-4239-9174-bac1b1ca1a6a')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/c0756978-baa6-4239-9174-bac1b1ca1a6a')]",
      "properties": {
        "alertRuleTemplateName": "c0756978-baa6-4239-9174-bac1b1ca1a6a",
        "customDetails": {
          "DstIP": "dst_ip_s",
          "Hostname": "host_s"
        },
        "description": "Suspicious Connection to External Address",
        "displayName": "Cynerio - Suspicious Connection to External Address",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "asset_ip_s",
                "identifier": "Address"
              }
            ]
          }
        ],
        "eventGroupingSettings": {
          "aggregationKind": "SingleAlert"
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cynerio/Analytic Rules/SuspiciousConnections.yaml",
        "query": "CynerioEvent_CL\n| where TimeGenerated > ago(24h)\n| where module_s == 'IDS'\n| where title_s == 'Suspicious Connection'\n",
        "queryFrequency": "PT5H",
        "queryPeriod": "PT5H",
        "severity": "High",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "LateralMovement"
        ],
        "techniques": null,
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}