A cloud function was created with an unusual runtime

Cortex XDR Analytics Alert Reference by Alert name

Product
Cortex XDR
Last date published
2024-06-04
Category
Analytics Alert Reference
Order
Alert name

Synopsis

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
    • Gcp Audit Log

Detection Modules

Cloud

ATT&CK Tactic

Execution (TA0002)

ATT&CK Technique

Command and Scripting Interpreter (T1059)

Severity

Low

Description

A cloud function was created with an unusual runtime.

Attacker's Goals

Abuse organization resources, keep persistence on the account.

Investigative actions

  • Investigate the lambda code implementation and look for abnormal calls.
  • Look for any abnormal actions made in the same project before and after the incident.

Variations

A cloud function was created with an unusual runtime by a known cloud identity

Synopsis

ATT&CK Tactic

Execution (TA0002)

ATT&CK Technique

Command and Scripting Interpreter (T1059)

Severity

Informational

Description

A cloud function was created with an unusual runtime.

Attacker's Goals

Abuse organization resources, keep persistence on the account.

Investigative actions

  • Investigate the lambda code implementation and look for abnormal calls.
  • Look for any abnormal actions made in the same project before and after the incident.


A cloud function was created with a runtime that was not seen in the organization

Synopsis

ATT&CK Tactic

Execution (TA0002)

ATT&CK Technique

Command and Scripting Interpreter (T1059)

Severity

Low

Description

A cloud function was created with an unusual runtime.

Attacker's Goals

Abuse organization resources, keep persistence on the account.

Investigative actions

  • Investigate the lambda code implementation and look for abnormal calls.
  • Look for any abnormal actions made in the same project before and after the incident.


A cloud function was created with a custom runtime

Synopsis

ATT&CK Tactic

Execution (TA0002)

ATT&CK Technique

Command and Scripting Interpreter (T1059)

Severity

Medium

Description

A cloud function was created with an unusual runtime.

Attacker's Goals

Abuse organization resources, keep persistence on the account.

Investigative actions

  • Investigate the lambda code implementation and look for abnormal calls.
  • Look for any abnormal actions made in the same project before and after the incident.