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Idc7cd6073-6d2c-4284-a5c8-da27605bdfde
RulenameProofpointPOD - High risk message not discarded
DescriptionDetects when email with high risk score was not rejected or discarded by filters.
SeverityLow
TacticsInitialAccess
TechniquesT1566
Required data connectorsProofpointPOD
KindScheduled
Query frequency10m
Query period10m
Trigger threshold0
Trigger operatorgt
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Proofpoint%20On%20demand%28POD%29%20Email%20Security/Analytic%20Rules/ProofpointPODHighRiskNotDiscarded.yaml
Version1.0.1
Arm templatec7cd6073-6d2c-4284-a5c8-da27605bdfde.json
Deploy To Azure
let lbtime = 10m;
ProofpointPOD
| where TimeGenerated > ago(lbtime)
| where EventType == 'message'
| where NetworkDirection == 'inbound'
| where FilterDisposition !in ('reject', 'discard')
| where FilterModulesSpamScoresOverall == '100'
| project SrcUserUpn, DstUserUpn
| extend AccountCustomEntity = SrcUserUpn
name: ProofpointPOD - High risk message not discarded
triggerOperator: gt
query: |
  let lbtime = 10m;
  ProofpointPOD
  | where TimeGenerated > ago(lbtime)
  | where EventType == 'message'
  | where NetworkDirection == 'inbound'
  | where FilterDisposition !in ('reject', 'discard')
  | where FilterModulesSpamScoresOverall == '100'
  | project SrcUserUpn, DstUserUpn
  | extend AccountCustomEntity = SrcUserUpn
queryFrequency: 10m
description: |
  'Detects when email with high risk score was not rejected or discarded by filters.'
id: c7cd6073-6d2c-4284-a5c8-da27605bdfde
triggerThreshold: 0
queryPeriod: 10m
version: 1.0.1
kind: Scheduled
status: Available
severity: Low
requiredDataConnectors:
- connectorId: ProofpointPOD
  dataTypes:
  - ProofpointPOD_message_CL
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Proofpoint%20On%20demand%28POD%29%20Email%20Security/Analytic%20Rules/ProofpointPODHighRiskNotDiscarded.yaml
relevantTechniques:
- T1566
tactics:
- InitialAccess
entityMappings:
- fieldMappings:
  - identifier: FullName
    columnName: AccountCustomEntity
  entityType: Account
{
  "$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/c7cd6073-6d2c-4284-a5c8-da27605bdfde')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/c7cd6073-6d2c-4284-a5c8-da27605bdfde')]",
      "properties": {
        "alertRuleTemplateName": "c7cd6073-6d2c-4284-a5c8-da27605bdfde",
        "customDetails": null,
        "description": "'Detects when email with high risk score was not rejected or discarded by filters.'\n",
        "displayName": "ProofpointPOD - High risk message not discarded",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "AccountCustomEntity",
                "identifier": "FullName"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Proofpoint%20On%20demand%28POD%29%20Email%20Security/Analytic%20Rules/ProofpointPODHighRiskNotDiscarded.yaml",
        "query": "let lbtime = 10m;\nProofpointPOD\n| where TimeGenerated > ago(lbtime)\n| where EventType == 'message'\n| where NetworkDirection == 'inbound'\n| where FilterDisposition !in ('reject', 'discard')\n| where FilterModulesSpamScoresOverall == '100'\n| project SrcUserUpn, DstUserUpn\n| extend AccountCustomEntity = SrcUserUpn\n",
        "queryFrequency": "PT10M",
        "queryPeriod": "PT10M",
        "severity": "Low",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "InitialAccess"
        ],
        "techniques": [
          "T1566"
        ],
        "templateVersion": "1.0.1",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}