Stale AWS policy attachment to identity

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Id	766a3b1b-0d5b-4a8d-b0d6-7dd379e73567
Rulename	Stale AWS policy attachment to identity
Description	The policy detects ‘AWS policies’ attached to IAM users or roles that have not used it during the last X days. It is recommended to remove unused policies from identities to reduce risk.
Severity	Low
Tactics	InitialAccess
Techniques	T1078
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_AWS_policy_attachment_to_identity.yaml
Version	1.0.2
Arm template	766a3b1b-0d5b-4a8d-b0d6-7dd379e73567.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 AWS policy attachment to identity"
| project  EventID, Policy, Severity, Description, Recommendation, URL, Category, Tactics

YAML

queryPeriod: 30m
requiredDataConnectors:
- connectorId: Authomize
  dataTypes:
  - Authomize_v2_CL
severity: Low
triggerOperator: gt
customDetails:
  AuthomizeEventID: EventID
  EventName: Policy
  EventRecommendation: Recommendation
  EventDescription: Description
  ReferencedURL: URL
entityMappings:
- fieldMappings:
  - identifier: Url
    columnName: URL
  entityType: URL
kind: Scheduled
triggerThreshold: 0
tactics:
- InitialAccess
relevantTechniques:
- T1078
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Authomize/Analytic Rules/Stale_AWS_policy_attachment_to_identity.yaml
eventGroupingSettings:
  aggregationKind: SingleAlert
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 AWS policy attachment to identity"
  | project  EventID, Policy, Severity, Description, Recommendation, URL, Category, Tactics  
id: 766a3b1b-0d5b-4a8d-b0d6-7dd379e73567
name: Stale AWS policy attachment to identity
status: Available
suppressionEnabled: false
version: 1.0.2
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    reopenClosedIncident: false
    matchingMethod: AnyAlert
    groupByAlertDetails: []
    enabled: true
    groupByEntities: []
    groupByCustomDetails: []
    lookbackDuration: 5h
description: The policy detects 'AWS policies' attached to IAM users or roles that have not used it during the last X days. It is recommended to remove unused policies from identities to reduce risk.
alertDetailsOverride:
  alertnameFormat: Alert from Authomize - Stale AWS policy attachment to identity
  alertTactics: Tactics
  alertSeverity: Severity
  alertDescriptionFormat: Stale AWS policy attachment to identity. The policy detects 'AWS policies' attached to IAM users or roles that have not used it during the last X days. It is recommended to remove unused policies from identities to reduce risk.
  alertDynamicProperties:
  - alertProperty: AlertLink
    value: URL
suppressionDuration: 5h
queryFrequency: 30m

ARM