PaloAlto - User privileges was changed

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Id	38f9e010-51ca-11ec-bf63-0242ac130002
Rulename	PaloAlto - User privileges was changed
Description	Detects changing of user privileges.
Severity	Medium
Tactics	InitialAccess
Techniques	T1190 T1133
Required data connectors	CefAma
Kind	Scheduled
Query frequency	1h
Query period	14d
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/PaloAltoCDL/Analytic Rules/PaloAltoCDLPrivilegesWasChanged.yaml
Version	1.0.4
Arm template	38f9e010-51ca-11ec-bf63-0242ac130002.json

KQL

let q_period = 14d;
let dt_lookBack = 24h;
let p = PaloAltoCDLEvent
| where TimeGenerated between (ago(q_period)..ago(dt_lookBack))
| summarize OldPrivileges = make_set(DestinationUserPrivileges) by DstUsername;
PaloAltoCDLEvent
| where TimeGenerated > ago(dt_lookBack)
| summarize NewPrivileges = make_set(DestinationUserPrivileges) by DstUsername
| join kind=innerunique (p) on DstUsername
| where tostring(OldPrivileges) != tostring(NewPrivileges)
| extend AccountCustomEntity = DstUsername

YAML

description: |
    'Detects changing of user privileges.'
kind: Scheduled
tactics:
- InitialAccess
requiredDataConnectors:
- connectorId: CefAma
  dataTypes:
  - CommonSecurityLog
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/PaloAltoCDL/Analytic Rules/PaloAltoCDLPrivilegesWasChanged.yaml
severity: Medium
name: PaloAlto - User privileges was changed
triggerThreshold: 0
queryPeriod: 14d
query: |
  let q_period = 14d;
  let dt_lookBack = 24h;
  let p = PaloAltoCDLEvent
  | where TimeGenerated between (ago(q_period)..ago(dt_lookBack))
  | summarize OldPrivileges = make_set(DestinationUserPrivileges) by DstUsername;
  PaloAltoCDLEvent
  | where TimeGenerated > ago(dt_lookBack)
  | summarize NewPrivileges = make_set(DestinationUserPrivileges) by DstUsername
  | join kind=innerunique (p) on DstUsername
  | where tostring(OldPrivileges) != tostring(NewPrivileges)
  | extend AccountCustomEntity = DstUsername  
relevantTechniques:
- T1190
- T1133
id: 38f9e010-51ca-11ec-bf63-0242ac130002
queryFrequency: 1h
status: Available
triggerOperator: gt
version: 1.0.4
entityMappings:
- entityType: Account
  fieldMappings:
  - columnName: AccountCustomEntity
    identifier: Name

ARM