Cisco Duo - Multiple users deleted

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Id	6e4f9031-91d3-4fa1-8baf-624935f04ad8
Rulename	Cisco Duo - Multiple users deleted
Description	Detects when multiple users were deleted.
Severity	Medium
Tactics	Impact
Techniques	T1531
Required data connectors	CiscoDuoSecurity
Kind	Scheduled
Query frequency	1h
Query period	1h
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/CiscoDuoSecurity/Analytic Rules/CiscoDuoMultipleUsersDeleted.yaml
Version	1.0.0
Arm template	6e4f9031-91d3-4fa1-8baf-624935f04ad8.json

KQL

CiscoDuo
| where DvcAction =~ "user_delete"
| summarize count() by DstUserName, bin(TimeGenerated, 10m)
| where count_ > 1
| extend AccountCustomEntity = DstUserName

YAML

queryPeriod: 1h
query: |
  CiscoDuo
  | where DvcAction =~ "user_delete"
  | summarize count() by DstUserName, bin(TimeGenerated, 10m)
  | where count_ > 1
  | extend AccountCustomEntity = DstUserName  
name: Cisco Duo - Multiple users deleted
entityMappings:
- fieldMappings:
  - columnName: AccountCustomEntity
    identifier: Name
  entityType: Account
queryFrequency: 1h
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/CiscoDuoSecurity/Analytic Rules/CiscoDuoMultipleUsersDeleted.yaml
requiredDataConnectors:
- connectorId: CiscoDuoSecurity
  dataTypes:
  - CiscoDuo
description: |
    'Detects when multiple users were deleted.'
kind: Scheduled
version: 1.0.0
status: Available
severity: Medium
relevantTechniques:
- T1531
triggerOperator: gt
triggerThreshold: 0
tactics:
- Impact
id: 6e4f9031-91d3-4fa1-8baf-624935f04ad8

ARM