Microsoft Sentinel Analytic Rules
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CyberArkEPM - Multiple attack types

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Idc02f96b4-057b-4e63-87af-6376ef7a081b
RulenameCyberArkEPM - Multiple attack types
DescriptionThis rule triggers on multiple attack attemts triggered by same user.
SeverityHigh
TacticsExecution
TechniquesT1204
Required data connectorsCyberArkEPM
KindScheduled
Query frequency10m
Query period10m
Trigger threshold0
Trigger operatorgt
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/CyberArkEPM/Analytic Rules/CyberArkEPMMultipleAttackAttempts.yaml
Version1.0.0
Arm templatec02f96b4-057b-4e63-87af-6376ef7a081b.json
Deploy To Azure
CyberArkEPM
| where EventSubType =~ 'AttackAttempt'
| summarize LatestAttackTime=max(EventEndTime), att=makeset(EventMessage) by ActorUsername
| where array_length(att) > 1
| extend AccountCustomEntity = ActorUsername
entityMappings:
- entityType: Account
  fieldMappings:
  - identifier: Name
    columnName: AccountCustomEntity
name: CyberArkEPM - Multiple attack types
tactics:
- Execution
severity: High
triggerThreshold: 0
relevantTechniques:
- T1204
id: c02f96b4-057b-4e63-87af-6376ef7a081b
version: 1.0.0
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/CyberArkEPM/Analytic Rules/CyberArkEPMMultipleAttackAttempts.yaml
queryFrequency: 10m
triggerOperator: gt
query: |
  CyberArkEPM
  | where EventSubType =~ 'AttackAttempt'
  | summarize LatestAttackTime=max(EventEndTime), att=makeset(EventMessage) by ActorUsername
  | where array_length(att) > 1
  | extend AccountCustomEntity = ActorUsername  
description: |
    'This rule triggers on multiple attack attemts triggered by same user.'
requiredDataConnectors:
- connectorId: CyberArkEPM
  dataTypes:
  - CyberArkEPM
queryPeriod: 10m
kind: Scheduled
{
  "$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/c02f96b4-057b-4e63-87af-6376ef7a081b')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/c02f96b4-057b-4e63-87af-6376ef7a081b')]",
      "properties": {
        "alertRuleTemplateName": "c02f96b4-057b-4e63-87af-6376ef7a081b",
        "customDetails": null,
        "description": "'This rule triggers on multiple attack attemts triggered by same user.'\n",
        "displayName": "CyberArkEPM - Multiple attack types",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "Account",
            "fieldMappings": [
              {
                "columnName": "AccountCustomEntity",
                "identifier": "Name"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/CyberArkEPM/Analytic Rules/CyberArkEPMMultipleAttackAttempts.yaml",
        "query": "CyberArkEPM\n| where EventSubType =~ 'AttackAttempt'\n| summarize LatestAttackTime=max(EventEndTime), att=makeset(EventMessage) by ActorUsername\n| where array_length(att) > 1\n| extend AccountCustomEntity = ActorUsername\n",
        "queryFrequency": "PT10M",
        "queryPeriod": "PT10M",
        "severity": "High",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Execution"
        ],
        "techniques": [
          "T1204"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}