Stale IAAS policy attachment to role

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Id	ccdf3f87-7890-4549-9d0f-8f43c1d2751d
Rulename	Stale IAAS policy attachment to role
Description	The rule detects ‘IaaS policies’ attached to a role that has not used them during the past X days. It is recommended to remove unused policies from identities to reduce risk.
Severity	Informational
Tactics	PrivilegeEscalation Persistence
Techniques	T1098
Required data connectors	Authomize
Kind	Scheduled
Query frequency	30m
Query period	30m
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Authomize/Analytic Rules/Stale_IAAS_policy_attachment_to_role.yaml
Version	1.0.3
Arm template	ccdf3f87-7890-4549-9d0f-8f43c1d2751d.json

KQL

Authomize_v2_CL
| where ingestion_time() >= ago(30m)
| extend EventID = id_s, Policy = policy_name_s, Severity = severity_s,Description = description_s,Recommendation = recommendation_s,URL = url_s,Tactics = tactics_s
| where Policy has "Stale IAAS policy attachment to role"
| project  EventID, Policy, Severity, Description, Recommendation, URL, Category, Tactics

YAML

relevantTechniques:
- T1098
alertDetailsOverride:
  alertTactics: Tactics
  alertSeverity: Severity
  alertnameFormat: Alert from Authomize - Stale IAAS policy attachment to role
  alertDynamicProperties:
  - value: URL
    alertProperty: AlertLink
  alertDescriptionFormat: Stale IAAS policy attachment to role. The rule detects 'IaaS policies' attached to a role that has not used them during the past X days.It is recommended to remove unused policies from identities to reduce risk.
customDetails:
  EventName: Policy
  ReferencedURL: URL
  EventDescription: Description
  EventRecommendation: Recommendation
  AuthomizeEventID: EventID
query: |-
  Authomize_v2_CL
  | where ingestion_time() >= ago(30m)
  | extend EventID = id_s, Policy = policy_name_s, Severity = severity_s,Description = description_s,Recommendation = recommendation_s,URL = url_s,Tactics = tactics_s
  | where Policy has "Stale IAAS policy attachment to role"
  | project  EventID, Policy, Severity, Description, Recommendation, URL, Category, Tactics  
triggerThreshold: 0
severity: Informational
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    enabled: true
    reopenClosedIncident: false
    groupByEntities: []
    groupByAlertDetails: []
    matchingMethod: AnyAlert
    lookbackDuration: 5h
    groupByCustomDetails: []
queryFrequency: 30m
status: Available
suppressionDuration: 5h
triggerOperator: gt
suppressionEnabled: false
kind: Scheduled
eventGroupingSettings:
  aggregationKind: SingleAlert
entityMappings:
- entityType: URL
  fieldMappings:
  - identifier: Url
    columnName: URL
requiredDataConnectors:
- dataTypes:
  - Authomize_v2_CL
  connectorId: Authomize
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Authomize/Analytic Rules/Stale_IAAS_policy_attachment_to_role.yaml
description: The rule detects 'IaaS policies' attached to a role that has not used them during the past X days. It is recommended to remove unused policies from identities to reduce risk.
tactics:
- PrivilegeEscalation
- Persistence
name: Stale IAAS policy attachment to role
version: 1.0.3
id: ccdf3f87-7890-4549-9d0f-8f43c1d2751d
queryPeriod: 30m

ARM