Cisco WSA - Multiple infected files

CiscoWSAEvent
| where isnotempty(AmpFileName)
| where isnotempty(ThreatName)
| summarize count() by SrcIpAddr, SrcUserName, bin(TimeGenerated, 15m)
| where count_ > 1
| extend IPCustomEntity = SrcIpAddr, AccountCustomEntity = SrcUserName

name: Cisco WSA - Multiple infected files
query: |
  CiscoWSAEvent
  | where isnotempty(AmpFileName)
  | where isnotempty(ThreatName)
  | summarize count() by SrcIpAddr, SrcUserName, bin(TimeGenerated, 15m)
  | where count_ > 1
  | extend IPCustomEntity = SrcIpAddr, AccountCustomEntity = SrcUserName  
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/CiscoWSA/Analytic Rules/CiscoWSAMultipleInfectedFiles.yaml
queryFrequency: 1h
triggerThreshold: 0
requiredDataConnectors:
- dataTypes:
  - CiscoWSAEvent
  connectorId: CiscoWSA
version: 1.0.1
status: Available
queryPeriod: 1h
id: 93186e3d-5dc2-4a00-a993-fa1448db8734
triggerOperator: gt
entityMappings:
- fieldMappings:
  - identifier: Address
    columnName: IPCustomEntity
  entityType: IP
- fieldMappings:
  - identifier: Name
    columnName: AccountCustomEntity
  entityType: Account
relevantTechniques:
- T1189
severity: High
description: |
    'Detects multiple infected files on same source.'
kind: Scheduled
tactics:
- InitialAccess

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/93186e3d-5dc2-4a00-a993-fa1448db8734')]",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/93186e3d-5dc2-4a00-a993-fa1448db8734')]",
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
      "kind": "Scheduled",
      "apiVersion": "2022-11-01",
      "properties": {
        "displayName": "Cisco WSA - Multiple infected files",
        "description": "'Detects multiple infected files on same source.'\n",
        "severity": "High",
        "enabled": true,
        "query": "CiscoWSAEvent\n| where isnotempty(AmpFileName)\n| where isnotempty(ThreatName)\n| summarize count() by SrcIpAddr, SrcUserName, bin(TimeGenerated, 15m)\n| where count_ > 1\n| extend IPCustomEntity = SrcIpAddr, AccountCustomEntity = SrcUserName\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "PT1H",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0,
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "InitialAccess"
        ],
        "techniques": [
          "T1189"
        ],
        "alertRuleTemplateName": "93186e3d-5dc2-4a00-a993-fa1448db8734",
        "customDetails": null,
        "entityMappings": [
          {
            "fieldMappings": [
              {
                "identifier": "Address",
                "columnName": "IPCustomEntity"
              }
            ],
            "entityType": "IP"
          },
          {
            "fieldMappings": [
              {
                "identifier": "Name",
                "columnName": "AccountCustomEntity"
              }
            ],
            "entityType": "Account"
          }
        ],
        "status": "Available",
        "templateVersion": "1.0.1",
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/CiscoWSA/Analytic Rules/CiscoWSAMultipleInfectedFiles.yaml"
      }
    }
  ]
}