A Kubernetes service account executed an unusual API call

Synopsis

Field	Value
Activation Period	14 Days
Training Period	30 Days
Test Period	N/A (single event)
Deduplication Period	5 Days
Required Data	Requires one of the following data sources: AWS Audit Log OR Azure Audit Log OR Gcp Audit Log OR Kubernetes Audit Logs
Detection Modules	Cloud
Detector Tags	Kubernetes - API
ATT&CK Tactic	Execution (TA0002)
ATT&CK Technique	User Execution (T1204)
Severity	Informational

Description

A Kubernetes service account executed an unusual API call.

Attacker's Goals

• Abuse a service account token to gain access to the Kubernetes cluster.

Investigative actions

• Verify whether the service account should be executing this API.
• Investigate other operations that were performed by the service account within the cluster.

Variations

A Kubernetes service account executed an API call on a first-seen resource

Synopsis

Field	Value
ATT&CK Tactic	Execution (TA0002)
ATT&CK Technique	User Execution (T1204)
Severity	Low

Description

A Kubernetes service account executed an API call on a first-seen resource.

Attacker's Goals

• Abuse a service account token to gain access to the Kubernetes cluster.

Investigative actions

• Verify whether the service account should be executing this API.
• Investigate other operations that were performed by the service account within the cluster.

A Kubernetes service account executed an API call on an unusual sensitive resource

Synopsis

Field	Value
ATT&CK Tactic	Execution (TA0002)
ATT&CK Technique	User Execution (T1204)
Severity	Low

Description

A Kubernetes service account executed an API call on an unusual sensitive resource.

Attacker's Goals

• Abuse a service account token to gain access to the Kubernetes cluster.

Investigative actions

• Verify whether the service account should be executing this API.
• Investigate other operations that were performed by the service account within the cluster.

A Kubernetes service account executed an unusual modification API call

Synopsis

Field	Value
ATT&CK Tactic	Execution (TA0002)
ATT&CK Technique	User Execution (T1204)
Severity	Informational

Description

A Kubernetes service account executed an unusual modification API call.

Attacker's Goals

• Abuse a service account token to gain access to the Kubernetes cluster.

Investigative actions

• Verify whether the service account should be executing this API.
• Investigate other operations that were performed by the service account within the cluster.

A Kubernetes service account executed an API call on an unusual resource

Synopsis

Field	Value
ATT&CK Tactic	Execution (TA0002)
ATT&CK Technique	User Execution (T1204)
Severity	Informational

Description

A Kubernetes service account executed an API call on an unusual resource.

Attacker's Goals

• Abuse a service account token to gain access to the Kubernetes cluster.

Investigative actions

• Verify whether the service account should be executing this API.
• Investigate other operations that were performed by the service account within the cluster.