Cloud snapshot created or modified

Synopsis

Field	Value
Activation Period	14 Days
Training Period	30 Days
Test Period	N/A (single event)
Deduplication Period	1 Day
Required Data	Requires one of the following data sources: AWS Audit Log OR Azure Audit Log OR Gcp Audit Log
Detection Modules	Cloud
Detector Tags	Cloud Data Asset Disaster Recovery Risks, Cloud Data Asset Configuration, Data Detection & Response
ATT&CK Tactic	Exfiltration (TA0010), Collection (TA0009), Defense Impairment (TA0112)
ATT&CK Technique	Transfer Data to Cloud Account (T1537), Modify Cloud Compute Infrastructure (T1578), Data from Cloud Storage (T1530)
Severity	Informational

Description

A cloud identity has created or modified a cloud snapshot.

Attacker's Goals

Exfiltrate sensitive data that resides on the snapshot.

Investigative actions

• Check if the identity intended to create or modify the snapshot.
• Check if the identity performed additional malicious operations within the cloud environment.

Variations

Cloud snapshot was configured for public access

Synopsis

Field	Value
ATT&CK Tactic	Exfiltration (TA0010), Collection (TA0009), Defense Impairment (TA0112)
ATT&CK Technique	Transfer Data to Cloud Account (T1537), Modify Cloud Compute Infrastructure (T1578), Data from Cloud Storage (T1530)
Severity	Low

Description

A cloud identity has created or modified a cloud snapshot.

Attacker's Goals

Exfiltrate sensitive data that resides on the snapshot.

Investigative actions

• Check if the identity intended to create or modify the snapshot.
• Check if the identity performed additional malicious operations within the cloud environment.

Cloud snapshot was shared with an unusual AWS account(s)

Synopsis

Field	Value
ATT&CK Tactic	Exfiltration (TA0010), Collection (TA0009), Defense Impairment (TA0112)
ATT&CK Technique	Transfer Data to Cloud Account (T1537), Modify Cloud Compute Infrastructure (T1578), Data from Cloud Storage (T1530)
Severity	Low

Description

A cloud identity has created or modified a cloud snapshot.

Attacker's Goals

Exfiltrate sensitive data that resides on the snapshot.

Investigative actions

• Check if the identity intended to create or modify the snapshot.
• Check if the identity performed additional malicious operations within the cloud environment.
• Check which AWS accounts the snapshot was shared with.

Previously unseen GCP principal was bound to cloud snapshot

Synopsis

Field	Value
ATT&CK Tactic	Exfiltration (TA0010), Collection (TA0009), Defense Impairment (TA0112)
ATT&CK Technique	Transfer Data to Cloud Account (T1537), Modify Cloud Compute Infrastructure (T1578), Data from Cloud Storage (T1530)
Severity	Low

Description

A cloud identity has created or modified a cloud snapshot.

Attacker's Goals

Exfiltrate sensitive data that resides on the snapshot.

Investigative actions

• Check if the identity intended to create or modify the snapshot.
• Check if the identity performed additional malicious operations within the cloud environment.
• Restrict permissions from suspicious GCP Principal.