GCP_IAM
| where PayloadMethodname in ('GenerateAccessToken', 'google.iam.admin.v1.GenerateAccessToken')
| 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])
status: Available
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/GoogleCloudPlatformIAM/Analytic Rules/GCPIAMNewAuthenticationToken.yaml
query: |
GCP_IAM
| where PayloadMethodname in ('GenerateAccessToken', 'google.iam.admin.v1.GenerateAccessToken')
| 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])
requiredDataConnectors:
- dataTypes:
- GCP_IAM
connectorId: GCPIAMDataConnector
tactics:
- LateralMovement
name: GCP IAM - New Authentication Token for Service Account
relevantTechniques:
- T1550
severity: Medium
entityMappings:
- fieldMappings:
- identifier: FullName
columnName: service_account
- identifier: Name
columnName: AccountName
- identifier: UPNSuffix
columnName: AccountUPNSuffix
entityType: Account
- fieldMappings:
- identifier: Address
columnName: SrcIpAddr
entityType: IP
kind: Scheduled
queryFrequency: 1h
description: |
'Detects when new authentication token is created for service account.'
triggerThreshold: 0
triggerOperator: gt
version: 1.0.2
queryPeriod: 1h
id: 80e4db30-5636-4fbd-8816-24c3ded8d243
