GCP_IAM
| where PayloadMethodname =~ 'google.iam.admin.v1.CreateServiceAccountKey'
| extend result = parse_json(todynamic(PayloadAuthorizationinfo))[0]['granted']
| where result =~ 'true'
| extend service_account = extract(@'serviceAccounts\/(.*?)@', 1, PayloadResponseName)
| project-away result
| extend AccountName = tostring(split(service_account, "@")[0]), AccountUPNSuffix = tostring(split(service_account, "@")[1])
query: |
GCP_IAM
| where PayloadMethodname =~ 'google.iam.admin.v1.CreateServiceAccountKey'
| extend result = parse_json(todynamic(PayloadAuthorizationinfo))[0]['granted']
| where result =~ 'true'
| extend service_account = extract(@'serviceAccounts\/(.*?)@', 1, PayloadResponseName)
| project-away result
| extend AccountName = tostring(split(service_account, "@")[0]), AccountUPNSuffix = tostring(split(service_account, "@")[1])
description: |
'Detects new service account key creation.'
triggerOperator: gt
triggerThreshold: 0
queryPeriod: 24h
queryFrequency: 24h
entityMappings:
- entityType: Account
fieldMappings:
- columnName: service_account
identifier: FullName
- columnName: AccountName
identifier: Name
- columnName: AccountUPNSuffix
identifier: UPNSuffix
- entityType: IP
fieldMappings:
- columnName: SrcIpAddr
identifier: Address
name: GCP IAM - New Service Account Key
status: Available
id: fc135860-8773-4ead-b5be-9789af1ff8ff
tactics:
- LateralMovement
kind: Scheduled
requiredDataConnectors:
- connectorId: GCPIAMDataConnector
dataTypes:
- GCP_IAM
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/GoogleCloudPlatformIAM/Analytic Rules/GCPIAMNewServiceAccountKey.yaml
version: 1.0.1
severity: Low
relevantTechniques:
- T1550
