Microsoft Sentinel Analytic Rules
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Digital Guardian - Sensitive data transfer over insecure channel

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Idb52cda18-c1af-40e5-91f3-1fcbf9fa267e
RulenameDigital Guardian - Sensitive data transfer over insecure channel
DescriptionDetects sensitive data transfer over insecure channel.
SeverityMedium
TacticsExfiltration
TechniquesT1048
Required data connectorsDigitalGuardianDLP
KindScheduled
Query frequency1h
Query period1h
Trigger threshold0
Trigger operatorgt
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/DigitalGuardianDLP/Analytic Rules/DigitalGuardianClassifiedDataInsecureTransfer.yaml
Version1.0.0
Arm templateb52cda18-c1af-40e5-91f3-1fcbf9fa267e.json
Deploy To Azure
DigitalGuardianDLPEvent
| where isnotempty(MatchedPolicies)
| where isnotempty(inspected_document)
| where NetworkApplicationProtocol =~ 'HTTP'
| extend AccountCustomEntity = SrcUserName, IPCustomEntity = SrcIpAddr
kind: Scheduled
status: Available
triggerThreshold: 0
relevantTechniques:
- T1048
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/DigitalGuardianDLP/Analytic Rules/DigitalGuardianClassifiedDataInsecureTransfer.yaml
requiredDataConnectors:
- dataTypes:
  - DigitalGuardianDLPEvent
  connectorId: DigitalGuardianDLP
queryPeriod: 1h
tactics:
- Exfiltration
severity: Medium
triggerOperator: gt
description: |
    'Detects sensitive data transfer over insecure channel.'
query: |
  DigitalGuardianDLPEvent
  | where isnotempty(MatchedPolicies)
  | where isnotempty(inspected_document)
  | where NetworkApplicationProtocol =~ 'HTTP'
  | extend AccountCustomEntity = SrcUserName, IPCustomEntity = SrcIpAddr  
name: Digital Guardian - Sensitive data transfer over insecure channel
version: 1.0.0
id: b52cda18-c1af-40e5-91f3-1fcbf9fa267e
queryFrequency: 1h
entityMappings:
- entityType: Account
  fieldMappings:
  - columnName: AccountCustomEntity
    identifier: Name
- entityType: IP
  fieldMappings:
  - columnName: IPCustomEntity
    identifier: Address
{
  "$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/b52cda18-c1af-40e5-91f3-1fcbf9fa267e')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/b52cda18-c1af-40e5-91f3-1fcbf9fa267e')]",
      "properties": {
        "alertRuleTemplateName": "b52cda18-c1af-40e5-91f3-1fcbf9fa267e",
        "customDetails": null,
        "description": "'Detects sensitive data transfer over insecure channel.'\n",
        "displayName": "Digital Guardian - Sensitive data transfer over insecure channel",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "AccountCustomEntity",
                "identifier": "Name"
              }
            ]
          },
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "IPCustomEntity",
                "identifier": "Address"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/DigitalGuardianDLP/Analytic Rules/DigitalGuardianClassifiedDataInsecureTransfer.yaml",
        "query": "DigitalGuardianDLPEvent\n| where isnotempty(MatchedPolicies)\n| where isnotempty(inspected_document)\n| where NetworkApplicationProtocol =~ 'HTTP'\n| extend AccountCustomEntity = SrcUserName, IPCustomEntity = SrcIpAddr\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "PT1H",
        "severity": "Medium",
        "status": "Available",
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Exfiltration"
        ],
        "techniques": [
          "T1048"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}