Sigma rule: AWS Lambda Function Created or Invoked

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-5ba0a1c75c06, updated 2023-03-24T00:00:00.000Z.

Rule

Title
AWS Lambda Function Created or Invoked
Status
unsupported
Level
low
Author
Austin Songer @austinsonger
Date
2021/10/03
Modified
2023/03/24
File
unsupported/cloud/aws_lambda_function_created_or_invoked.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects when an user creates or invokes a lambda function.

Log source

product
aws
service
cloudtrail

Detection

selection1:
    eventSource: lambda.amazonaws.com
    eventName: CreateFunction
selection2:
    eventSource: lambda.amazonaws.com
    eventName: Invoke
condition: selection1 | near selection2

False positives (as the rule lists them)

  • Lambda Function created or invoked may be performed by a system administrator. Verify whether the user identity, user agent, and/or hostname should be making changes in your environment.
  • If known behavior is causing false positives, it can be exempted from the rule.

Tags

  • attack.privilege_escalation
  • attack.t1078

MITRE ATT&CK ids this rule names

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/unsupported/cloud/aws_lambda_function_created_or_invoked.yml

Sources and licences

  • SigmaHQ

    "AWS Lambda Function Created or Invoked" by Austin Songer @austinsonger (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/unsupported/cloud/aws_lambda_function_created_or_invoked.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: AWS Lambda Function Created or Invoked",
entity page, dataset version ref-5ba0a1c75c06, updated 2023-03-24T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/d914951b-52c8-485f-875e-86abab710c0b (accessed 2026-11-03).
Underlying source: SigmaHQ rule d914951b-52c8-485f-875e-86abab710c0b, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.