Bedrock model shared with a foreign account

Synopsis

Field	Value
Activation Period	14 Days
Training Period	30 Days
Test Period	N/A (single event)
Deduplication Period	1 Day
Required Data	AWS Audit Log
Detection Modules	Cloud
Detector Tags	Cloud AI Infrastructure Analytics
ATT&CK Tactic	Exfiltration (TA0010)
ATT&CK Technique	Transfer Data to Cloud Account (T1537)
Severity	Low

Description

A bedrock model was shared with a foreign account through AWS resource access manager.

Attacker's Goals

Exfiltrate the proprietary model to a foreign account and establish persistent access to it.

Investigative actions

• Investigate the foreign cloud accounts that gained access to the models.
• Assess the sensitivity of the shared models to determine the potential impact of this exposure.
• Identify the actor and investigate their identity for compromise.