Microsoft Sentinel Analytic Rules
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Cisco Duo - New access device

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Idf05271b6-26a5-49cf-ad73-4a202fba6eb6
RulenameCisco Duo - New access device
DescriptionDetects new access device.
SeverityMedium
TacticsInitialAccess
TechniquesT1078
Required data connectorsCiscoDuoSecurity
KindScheduled
Query frequency1h
Query period14d
Trigger threshold0
Trigger operatorgt
Source Urihttps://github.com/Azure/Azure-Sentinel/blob/master/Solutions/CiscoDuoSecurity/Analytic Rules/CiscoDuoNewAccessDevice.yaml
Version1.0.0
Arm templatef05271b6-26a5-49cf-ad73-4a202fba6eb6.json
Deploy To Azure
CiscoDuo
| where EventType =~ 'authentication'
| where EventResult =~ 'success'
| where isnotempty(AccessDvcIpAddr)
| summarize dvc_ip = makeset(AccessDvcIpAddr) by DstUserName
| join (CiscoDuo
        | where EventType =~ 'authentication'
        | where EventResult =~ 'success') on DstUserName
| where dvc_ip !has AccessDvcIpAddr
| extend IPCustomEntity = AccessDvcIpAddr, AccountCustomEntity = DstUserName
queryPeriod: 14d
query: |
  CiscoDuo
  | where EventType =~ 'authentication'
  | where EventResult =~ 'success'
  | where isnotempty(AccessDvcIpAddr)
  | summarize dvc_ip = makeset(AccessDvcIpAddr) by DstUserName
  | join (CiscoDuo
          | where EventType =~ 'authentication'
          | where EventResult =~ 'success') on DstUserName
  | where dvc_ip !has AccessDvcIpAddr
  | extend IPCustomEntity = AccessDvcIpAddr, AccountCustomEntity = DstUserName  
name: Cisco Duo - New access device
entityMappings:
- fieldMappings:
  - columnName: IPCustomEntity
    identifier: Address
  entityType: IP
- fieldMappings:
  - columnName: AccountCustomEntity
    identifier: Name
  entityType: Account
queryFrequency: 1h
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/CiscoDuoSecurity/Analytic Rules/CiscoDuoNewAccessDevice.yaml
requiredDataConnectors:
- connectorId: CiscoDuoSecurity
  dataTypes:
  - CiscoDuo
description: |
    'Detects new access device.'
kind: Scheduled
version: 1.0.0
status: Available
severity: Medium
relevantTechniques:
- T1078
triggerOperator: gt
triggerThreshold: 0
tactics:
- InitialAccess
id: f05271b6-26a5-49cf-ad73-4a202fba6eb6