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

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

ARM