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

incidentConfiguration:
  groupingConfiguration:
    matchingMethod: AnyAlert
    lookbackDuration: 5h
    groupByAlertDetails: []
    reopenClosedIncident: false
    groupByCustomDetails: []
    enabled: true
    groupByEntities: []
  createIncident: true
id: ccdf3f87-7890-4549-9d0f-8f43c1d2751d
triggerThreshold: 0
entityMappings:
- entityType: URL
  fieldMappings:
  - columnName: URL
    identifier: Url
queryPeriod: 30m
alertDetailsOverride:
  alertTactics: Tactics
  alertSeverity: Severity
  alertDynamicProperties:
  - alertProperty: AlertLink
    value: URL
  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.
  alertnameFormat: Alert from Authomize - Stale IAAS policy attachment to role
name: Stale IAAS policy attachment to role
suppressionDuration: 5h
queryFrequency: 30m
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.
suppressionEnabled: false
severity: Informational
requiredDataConnectors:
- dataTypes:
  - Authomize_v2_CL
  connectorId: Authomize
relevantTechniques:
- T1098
customDetails:
  EventDescription: Description
  ReferencedURL: URL
  EventName: Policy
  EventRecommendation: Recommendation
  AuthomizeEventID: EventID
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Authomize/Analytic Rules/Stale_IAAS_policy_attachment_to_role.yaml
kind: Scheduled
status: Available
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  
tactics:
- PrivilegeEscalation
- Persistence
triggerOperator: gt
eventGroupingSettings:
  aggregationKind: SingleAlert
version: 1.0.3

ARM