Microsoft Sentinel Analytic Rules
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OracleDBAudit - Connection to database from external IP

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Id54aa2c17-acfd-4e3a-a1c4-99c88cf34ebe
RulenameOracleDBAudit - Connection to database from external IP
DescriptionDetects when connection to database is from external IP source.
SeverityMedium
TacticsInitialAccess
Collection
Exfiltration
TechniquesT1190
T1133
T1078
T1119
T1029
Required data connectorsOracleDatabaseAudit
KindScheduled
Query frequency30m
Query period30m
Trigger threshold0
Trigger operatorgt
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/OracleDatabaseAudit/Analytic Rules/OracleDBAuditConnectFromExternalIp.yaml
Version1.0.0
Arm template54aa2c17-acfd-4e3a-a1c4-99c88cf34ebe.json
Deploy To Azure
OracleDatabaseAuditEvent
| where isnotempty(SrcIpAddr)
| where isnotempty(Action)
| where DbAction =~ 'connect'
| where ipv4_is_private(SrcIpAddr) == 'false'
| extend AccountCustomEntity = DstUserName
| extend IPCustomEntity = SrcIpAddr
name: OracleDBAudit - Connection to database from external IP
triggerOperator: gt
status: Available
relevantTechniques:
- T1190
- T1133
- T1078
- T1119
- T1029
query: |
  OracleDatabaseAuditEvent
  | where isnotempty(SrcIpAddr)
  | where isnotempty(Action)
  | where DbAction =~ 'connect'
  | where ipv4_is_private(SrcIpAddr) == 'false'
  | extend AccountCustomEntity = DstUserName
  | extend IPCustomEntity = SrcIpAddr  
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/OracleDatabaseAudit/Analytic Rules/OracleDBAuditConnectFromExternalIp.yaml
description: |
    'Detects when connection to database is from external IP source.'
triggerThreshold: 0
id: 54aa2c17-acfd-4e3a-a1c4-99c88cf34ebe
kind: Scheduled
severity: Medium
version: 1.0.0
entityMappings:
- fieldMappings:
  - identifier: FullName
    columnName: AccountCustomEntity
  entityType: Account
- fieldMappings:
  - identifier: Address
    columnName: IPCustomEntity
  entityType: IP
queryFrequency: 30m
queryPeriod: 30m
requiredDataConnectors:
- dataTypes:
  - Syslog
  connectorId: OracleDatabaseAudit
tactics:
- InitialAccess
- Collection
- Exfiltration
{
  "$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/54aa2c17-acfd-4e3a-a1c4-99c88cf34ebe')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/54aa2c17-acfd-4e3a-a1c4-99c88cf34ebe')]",
      "properties": {
        "alertRuleTemplateName": "54aa2c17-acfd-4e3a-a1c4-99c88cf34ebe",
        "customDetails": null,
        "description": "'Detects when connection to database is from external IP source.'\n",
        "displayName": "OracleDBAudit - Connection to database from external IP",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "AccountCustomEntity",
                "identifier": "FullName"
              }
            ]
          },
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "IPCustomEntity",
                "identifier": "Address"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/OracleDatabaseAudit/Analytic Rules/OracleDBAuditConnectFromExternalIp.yaml",
        "query": "OracleDatabaseAuditEvent\n| where isnotempty(SrcIpAddr)\n| where isnotempty(Action)\n| where DbAction =~ 'connect'\n| where ipv4_is_private(SrcIpAddr) == 'false'\n| extend AccountCustomEntity = DstUserName\n| extend IPCustomEntity = SrcIpAddr\n",
        "queryFrequency": "PT30M",
        "queryPeriod": "PT30M",
        "severity": "Medium",
        "status": "Available",
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Collection",
          "Exfiltration",
          "InitialAccess"
        ],
        "techniques": [
          "T1029",
          "T1078",
          "T1119",
          "T1133",
          "T1190"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}