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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
entityMappings:
- entityType: Account
  fieldMappings:
  - identifier: FullName
    columnName: AccountCustomEntity
name: ProofpointPOD - High risk message not discarded
kind: Scheduled
triggerOperator: gt
status: Available
queryPeriod: 10m
requiredDataConnectors:
- connectorId: ProofpointPOD
  dataTypes:
  - ProofpointPOD_message_CL
tactics:
- InitialAccess
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
description: |
  'Detects when email with high risk score was not rejected or discarded by filters.'
severity: Low
id: c7cd6073-6d2c-4284-a5c8-da27605bdfde
triggerThreshold: 0
queryFrequency: 10m
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Proofpoint%20On%20demand%28POD%29%20Email%20Security/Analytic%20Rules/ProofpointPODHighRiskNotDiscarded.yaml
version: 1.0.1
relevantTechniques:
- T1566
{
  "$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"
    }
  ]
}