Detection rules › Kusto
Cisco Duo - Multiple users deleted
'Detects when multiple users were deleted.'
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Impact |
Rule body
id: 6e4f9031-91d3-4fa1-8baf-624935f04ad8
name: Cisco Duo - Multiple users deleted
description: |
'Detects when multiple users were deleted.'
severity: Medium
status: Available
requiredDataConnectors:
- connectorId: CiscoDuoActivityConnectorDefinition
dataTypes:
- DuoActivity_CL
queryFrequency: 1h
queryPeriod: 1h
triggerOperator: gt
triggerThreshold: 0
tactics:
- Impact
relevantTechniques:
- T1531
query: |
DuoActivity_CL
| where ActionName =~ "user_delete"
| summarize count() by ActorName, bin(TimeGenerated, 10m)
| where count_ > 1
| extend AccountCustomEntity = ActorName
entityMappings:
- entityType: Account
fieldMappings:
- identifier: Name
columnName: AccountCustomEntity
version: 1.0.1
kind: Scheduled
Stages and Predicates
Stage 1: source
DuoActivity_CL
Stage 2: where
| where ActionName =~ "user_delete"
Stage 3: summarize
| summarize count() by ActorName, bin(TimeGenerated, 10m)
Stage 4: where
| where count_ > 1
Stage 5: extend
| extend AccountCustomEntity = ActorName
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
ActionName | eq |
| field:"ActionName" kind:eq value:"user_delete" |
count_ | gt |
| field:"count_" kind:gt value:"1" |
Output fields
These fields are emitted when the rule matches.
| Field | Source |
|---|---|
ActorName | summarize |
AccountCustomEntity | extend |