GCP service account impersonation attempt

Synopsis

Field	Value
Activation Period	14 Days
Training Period	30 Days
Test Period	N/A (single event)
Deduplication Period	5 Days
Required Data	Gcp Audit Log
Detection Modules	Cloud
ATT&CK Tactic	Privilege Escalation (TA0004), Initial Access (TA0001)
ATT&CK Technique	Valid Accounts: Cloud Accounts (T1078.004), Abuse Elevation Control Mechanism: Temporary Elevated Cloud Access (T1548.005), Trusted Relationship (T1199)
Severity	Informational

Description

An attempt to impersonate the GCP service account failed.

Attacker's Goals

• Escalate privileges to gain elevated access to cloud resources.

Investigative actions

• Review activity on the target service account.
• Check which principals have permission to impersonate the service account.