Bitglass
| where EventType =~ 'access'
| where EventMessage =~ 'Login'
| summarize ua = makeset(HttpUserAgent) by User
| join (Bitglass
| where EventType =~ 'access'
| where EventMessage =~ 'Login') on User
| where ua !contains HttpUserAgent
| extend AccountCustomEntity = User
description: |
'Detects when User Agent string has changed for user.'
version: 1.0.0
triggerThreshold: 0
tactics:
- InitialAccess
queryPeriod: 14d
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Bitglass/Analytic Rules/BitglassUserUAChanged.yaml
triggerOperator: gt
status: Available
id: 4dd61530-859f-49e7-bd27-a173cb1a4589
name: Bitglass - User Agent string has changed for user
queryFrequency: 1h
severity: Medium
kind: Scheduled
entityMappings:
- fieldMappings:
- columnName: AccountCustomEntity
identifier: Name
entityType: Account
relevantTechniques:
- T1078
query: |
Bitglass
| where EventType =~ 'access'
| where EventMessage =~ 'Login'
| summarize ua = makeset(HttpUserAgent) by User
| join (Bitglass
| where EventType =~ 'access'
| where EventMessage =~ 'Login') on User
| where ua !contains HttpUserAgent
| extend AccountCustomEntity = User
requiredDataConnectors:
- dataTypes:
- Bitglass
connectorId: Bitglass
