Remote usage of an AWS service token

Synopsis

Field	Value
Activation Period	14 Days
Training Period	30 Days
Test Period	N/A (single event)
Deduplication Period	5 Days
Required Data	AWS Audit Log
Detection Modules	Cloud
ATT&CK Tactic	Credential Access (TA0006), Lateral Movement (TA0008), Initial Access (TA0001)
ATT&CK Technique	Steal Application Access Token (T1528), Use Alternate Authentication Material: Application Access Token (T1550.001), Unsecured Credentials (T1552), Valid Accounts: Cloud Accounts (T1078.004)
Severity	Low

Description

An AWS service token was used externally of the cloud environment.

Attacker's Goals

Exfiltrate a token and abuse it remotely.

Investigative actions

• Check what actions were executed using the access-key.
• Check if the IAM role was assumed by a different identity.

Variations

Suspicious usage of AWS service token

Synopsis

Field	Value
ATT&CK Tactic	Credential Access (TA0006), Lateral Movement (TA0008), Initial Access (TA0001)
ATT&CK Technique	Steal Application Access Token (T1528), Use Alternate Authentication Material: Application Access Token (T1550.001), Unsecured Credentials (T1552), Valid Accounts: Cloud Accounts (T1078.004)
Severity	Medium

Description

An AWS service token was used externally of the cloud environment.

Attacker's Goals

Exfiltrate a token and abuse it remotely.

Investigative actions

• Check what actions were executed using the access-key.
• Check if the IAM role was assumed by a different identity.