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

ARM