A cloud function was created with an unusual runtime

Cortex XDR Analytics Alert Reference by Alert name

Product
Cortex XDR
Last date published
2025-03-18
Category
Analytics Alert Reference
Index by
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

Detector Tags

ATT&CK Tactic

Execution (TA0002)

ATT&CK Technique

Serverless Execution (T1648)

Severity

Low

Description

A cloud function was created with an unusual runtime.

Attacker's Goals

Execute arbitrary code in cloud environments.

Investigative actions

  • Examine the cloud function's code implementation and look for any unusual invocations.
  • Check for any unusual activities within the same project.

Variations

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

Synopsis

ATT&CK Tactic

Execution (TA0002)

ATT&CK Technique

Serverless Execution (T1648)

Severity

Informational

Description

A cloud function was created with an unusual runtime.

Attacker's Goals

Execute arbitrary code in cloud environments.

Investigative actions

  • Examine the cloud function's code implementation and look for any unusual invocations.
  • Check for any unusual activities within the same project.


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

Synopsis

ATT&CK Tactic

Execution (TA0002)

ATT&CK Technique

Serverless Execution (T1648)

Severity

Low

Description

A cloud function was created with an unusual runtime.

Attacker's Goals

Execute arbitrary code in cloud environments.

Investigative actions

  • Examine the cloud function's code implementation and look for any unusual invocations.
  • Check for any unusual activities within the same project.


A cloud function was created with a custom runtime

Synopsis

ATT&CK Tactic

Execution (TA0002)

ATT&CK Technique

Serverless Execution (T1648)

Severity

Medium

Description

A cloud function was created with an unusual runtime.

Attacker's Goals

Execute arbitrary code in cloud environments.

Investigative actions

  • Examine the cloud function's code implementation and look for any unusual invocations.
  • Check for any unusual activities within the same project.