GCP IAM - Disable Data Access Logging

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Id	2530a631-9605-404d-ae58-58ef1f91b17c
Rulename	GCP IAM - Disable Data Access Logging
Description	Detects when Data Access Logging is disabled.
Severity	Medium
Tactics	DefenseEvasion
Techniques	T1562
Required data connectors	GCPIAMDataConnector
Kind	Scheduled
Query frequency	1h
Query period	1h
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/GoogleCloudPlatformIAM/Analytic Rules/GCPIAMDisableDataAccessLogging.yaml
Version	1.0.1
Arm template	2530a631-9605-404d-ae58-58ef1f91b17c.json

KQL

GCP_IAM
| where PayloadMethodname == 'SetIamPolicy'
| extend s = parse_json(todynamic(PayloadRequestPolicyAuditconfigs))[0]['auditLogConfigs']
| where isempty(s)
| extend AccountName = tostring(split(PayloadAuthenticationinfoPrincipalemail, "@")[0]), AccountUPNSuffix = tostring(split(PayloadAuthenticationinfoPrincipalemail, "@")[1])

YAML

relevantTechniques:
- T1562
entityMappings:
- fieldMappings:
  - columnName: PayloadAuthenticationinfoPrincipalemail
    identifier: FullName
  - columnName: AccountName
    identifier: Name
  - columnName: AccountUPNSuffix
    identifier: UPNSuffix
  entityType: Account
- fieldMappings:
  - columnName: SrcIpAddr
    identifier: Address
  entityType: IP
triggerThreshold: 0
description: |
    'Detects when Data Access Logging is disabled.'
requiredDataConnectors:
- connectorId: GCPIAMDataConnector
  dataTypes:
  - GCP_IAM
triggerOperator: gt
version: 1.0.1
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/GoogleCloudPlatformIAM/Analytic Rules/GCPIAMDisableDataAccessLogging.yaml
id: 2530a631-9605-404d-ae58-58ef1f91b17c
queryFrequency: 1h
query: |
  GCP_IAM
  | where PayloadMethodname == 'SetIamPolicy'
  | extend s = parse_json(todynamic(PayloadRequestPolicyAuditconfigs))[0]['auditLogConfigs']
  | where isempty(s)
  | extend AccountName = tostring(split(PayloadAuthenticationinfoPrincipalemail, "@")[0]), AccountUPNSuffix = tostring(split(PayloadAuthenticationinfoPrincipalemail, "@")[1])  
severity: Medium
status: Available
queryPeriod: 1h
name: GCP IAM - Disable Data Access Logging
tactics:
- DefenseEvasion
kind: Scheduled

ARM