Analytics BIOC Low

Suspicious usage of EC2 token

An AWS EC2 STS token was used externally from an EC2 instance.

Module:
Cortex Cloud
Licensed by:
Cloud Runtime Security (CRS)
Data source:
AWS Audit Log
ATT&CK tactics: Credential Access (TA0006) Initial Access (TA0001)
ATT&CK techniques: Steal Application Access Token (T1528) Unsecured Credentials (T1552) Valid Accounts: Cloud Accounts (T1078.004)
Attacker's goals:

Exfiltrate token and abuse it remotely.

Investigative actions:

Check if the access key was generated by the attached instance. Check what actions were executed by the access key. Check if the relevant instance is compromised.

Test period:
N/A (single event)
Deduplication:
5 Days
1 variation:
  • Suspicious usage of EC2 token Medium (parent: Low)