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

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

ARM