AWS Lambda infrastructure enumeration activity

Cortex XDR Analytics Alert Reference by Alert name

Product
Cortex XDR
Last date published
2026-02-02
Category
Analytics Alert Reference
Index by
Alert name

Synopsis

Activation Period

14 Days

Training Period

30 Days

Test Period

1 Hour

Deduplication Period

5 Days

Required Data

  • Requires:
    • AWS Audit Log

Detection Modules

Cloud

Detector Tags

ATT&CK Tactic

Discovery (TA0007)

ATT&CK Technique

Cloud Infrastructure Discovery (T1580)

Severity

Informational

Description

Lambda infrastructure enumeration activity detected within a specific AWS region.

Attacker's Goals

  • Discover deployed functions and their configurations.
  • Assess IAM policies, event triggers, and execution limits to evaluate privilege levels and potential abuse paths.
  • Enumerate metadata for potential weaknesses or sensitive data.

Investigative actions

  • Identify and review the specific Lambda enumeration API calls executed and their frequency.
  • Verify the identity performing the calls and assess if this behavior is typical or anomalous.
  • Correlate with other discovery activities and check related logs for suspicious patterns or subsequent actions.