Cisco Duo - Admin password reset

Status: available
Severity: high
Time window: 1h
Source: github.com/Azure/Azure-Sentinel

'Detects when admin's password was reset.'

MITRE ATT&CK coverage

Tactic	Techniques
Persistence	`T1078` Valid Accounts

Rule body

id: 413e49a5-b107-4698-8428-46b89308bd22
name: Cisco Duo - Admin password reset
description: |
  'Detects when admin's password was reset.'
severity: High
status: Available
requiredDataConnectors:
  - connectorId: CiscoDuoActivityConnectorDefinition
    dataTypes:
      - DuoActivity_CL
queryFrequency: 1h
queryPeriod: 1h
triggerOperator: gt
triggerThreshold: 0
tactics:
  - Persistence
relevantTechniques:
  - T1078
query: |
  DuoActivity_CL
  | where ActionName =~ "admin_reset_password"
  | 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 =~ "admin_reset_password"

Stage 3: `extend`

| extend AccountCustomEntity = ActorName

Indicators

These rows show field, operator, and value matches.

Field	Kind	Values	Search
`ActionName`	eq	`admin_reset_password`	`field:"ActionName" kind:eq value:"admin_reset_password"`

Output fields

These fields are emitted when the rule matches.

Field	Source
`AccountCustomEntity`	`extend`

Cisco Duo - Admin password reset

MITRE ATT&CK coverage

Rule body

Stages and Predicates

Stage 1: source

Stage 2: where

Stage 3: extend

Indicators

Output fields

Stage 1: `source`

Stage 2: `where`

Stage 3: `extend`