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
kind: Scheduled
description: |
    'This rule triggers on multiple attack attemts triggered by same user.'
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/CyberArkEPM/Analytic Rules/CyberArkEPMMultipleAttackAttempts.yaml
version: 1.0.0
triggerThreshold: 0
queryPeriod: 10m
entityMappings:
- entityType: Account
  fieldMappings:
  - columnName: AccountCustomEntity
    identifier: Name
requiredDataConnectors:
- connectorId: CyberArkEPM
  dataTypes:
  - CyberArkEPM
triggerOperator: gt
id: c02f96b4-057b-4e63-87af-6376ef7a081b
name: CyberArkEPM - Multiple attack types
query: |
  CyberArkEPM
  | where EventSubType =~ 'AttackAttempt'
  | summarize LatestAttackTime=max(EventEndTime), att=makeset(EventMessage) by ActorUsername
  | where array_length(att) > 1
  | extend AccountCustomEntity = ActorUsername  
tactics:
- Execution
queryFrequency: 10m
relevantTechniques:
- T1204
severity: High
{
  "$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/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",
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Execution"
        ],
        "techniques": [
          "T1204"
        ],
        "templateVersion": "1.0.0",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}