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Anomalies Suspicious Volume Of AWS Write API Calls From A User Account

Query

// In the returned Query substitute
// reverse(split(reverse(tostring(UserIdentityArn)),"/",0))
// by
// split(UserIdentityArn,"/",0)[-1]
Anomalies
| where RuleName endswith "Suspicious volume of AWS write API calls from a user account" and RuleStatus != "Flighting"
| extend
    Query = ExtendedLinks[0]["DetailBladeInputs"]
| project
    TimeGenerated,
    RuleName,
    Description,
    Query,
    UserName,
    Score,
    AnomalyDetails,
    Entities,
    Tactics,
    Techniques,
    ExtendedLinks

Explanation

This query filters anomalies where the rule name ends with "Suspicious volume of AWS write API calls from a user account" and the rule status is not "Flighting". It then extends the Query column with the value from the first element of the ExtendedLinks array's DetailBladeInputs property. Finally, it projects several columns including TimeGenerated, RuleName, Description, Query, UserName, Score, AnomalyDetails, Entities, Tactics, Techniques, and ExtendedLinks.

Details

Jose Sebastián Canós profile picture

Jose Sebastián Canós

Released: December 15, 2022

Tables

Anomalies

Keywords

Anomalies,RuleName,RuleStatus,ExtendedLinks,TimeGenerated,Description,Query,UserName,Score,AnomalyDetails,Entities,Tactics,Techniques

Operators

whereendswith!=extendproject

Actions