GCP_IAM
| where PayloadMethodname =~ 'google.iam.admin.v1.CreateServiceAccount'
| extend result = parse_json(todynamic(PayloadAuthorizationinfo))[0]['granted']
| where result =~ 'true'
| project-away result
| extend AccountName = tostring(split(PayloadRequestAccountId, "@")[0]), AccountUPNSuffix = tostring(split(PayloadRequestAccountId, "@")[1])
triggerOperator: gt
queryFrequency: 24h
requiredDataConnectors:
- connectorId: GCPIAMDataConnector
dataTypes:
- GCP_IAM
relevantTechniques:
- T1136
entityMappings:
- entityType: Account
fieldMappings:
- identifier: FullName
columnName: PayloadRequestAccountId
- identifier: Name
columnName: AccountName
- identifier: UPNSuffix
columnName: AccountUPNSuffix
- entityType: IP
fieldMappings:
- identifier: Address
columnName: SrcIpAddr
query: |
GCP_IAM
| where PayloadMethodname =~ 'google.iam.admin.v1.CreateServiceAccount'
| extend result = parse_json(todynamic(PayloadAuthorizationinfo))[0]['granted']
| where result =~ 'true'
| project-away result
| extend AccountName = tostring(split(PayloadRequestAccountId, "@")[0]), AccountUPNSuffix = tostring(split(PayloadRequestAccountId, "@")[1])
triggerThreshold: 0
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/GoogleCloudPlatformIAM/Analytic Rules/GCPIAMNewServiceAccount.yaml
queryPeriod: 24h
name: GCP IAM - New Service Account
status: Available
kind: Scheduled
description: |
'Detects new service account creation.'
id: a768aa52-453e-4e3e-80c2-62928d2e2f56
version: 1.0.1
tactics:
- Persistence
severity: Low
