Detect Spike In AWS API Activity

Description

This search will detect users creating spikes of API activity in your AWS environment. It will also update the cache file that factors in the latest data.

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Use Case

Advanced Threat Detection

Category

Cloud Security, SaaS

Alert Volume

This search will detect users creating spikes of API activity in your AWS environment. It will also update the cache file that factors in the latest data.

SPL Difficulty

None

Journey

Stage 3

MITRE ATT&CK Tactics

Defense Evasion
Persistence
Privilege Escalation
Initial Access

MITRE ATT&CK Techniques

Valid Accounts

Cloud Accounts

MITRE Threat Groups

APT33

Kill Chain Phases

Actions On Objectives

Data Sources

AWS
Audit Trail

   Help

Detect Spike In AWS API Activity Help

You must install the AWS App for Splunk (version 5.1.0 or later) and Splunk Add-on for AWS (version 4.4.0 or later), then configure your CloudTrail inputs. You can modify dataPointThreshold and deviationThreshold to better fit your environment. The dataPointThreshold variable is the minimum number of data points required to have a statistically significant amount of data to determine. The deviationThreshold variable is the number of standard deviations away from the mean that the value must be to be considered a spike.\ This search produces fields (eventName,numberOfApiCalls,uniqueApisCalled) that are not yet supported by ES Incident Review and therefore cannot be viewed when a notable event is raised. These fields contribute additional context to the notable. To see the additional metadata, add the following fields, if not already present, to Incident Review - Event Attributes (Configure > Incident Management > Incident Review Settings > Add New Entry):\n1. Label: AWS Event Name, Field: eventName\ 1. \ 1. Label: Number of API Calls, Field: numberOfApiCalls\ 1. \ 1. Label: Unique API Calls, Field: uniqueApisCalled\ Detailed documentation on how to create a new field within Incident Review may be found here: https://docs.splunk.com/Documentation/ES/5.3.0/Admin/Customizenotables#Add_a_field_to_the_notable_event_details

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