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AD_LocalGroupEnumerated

ID: 100019

Description:

EventID 4799: A security-enabled local group membership was enumerated

An aggregation rule to track EventID:4799 events Windows AD (Active Directory).

This rule will trigger when the number of events per twenty (20) minutes exceeds 100. This indicates that a machine may have some abnormal activity.

Repository: Fluency Group: AD Type: event

Default Status:

Enabled

Tags:
AD
 

Selector:

Query:

Filters:

Field MUST hit
@fields.EventID 4799
@eventType nxlogAD
Field MUST NOT hit
   

Behavior Rule:

Key Type Behavior Category
@fields.Hostname asset security alert

Risks:

Risks Base Score Dimension
     

Attributes:

Alias Key
Hostname @fields.Hostname
EventID @fields.EventID
EventType @fields.EventType
CallerProcess @fields.CallerProcessName
Username @fields.SubjectUserName
SubjectDomain @fields.SubjectDomainName
Category @fields.Category

Correlation Rules:

Aggregation:

Name Window Field AggType Match
EventSpike 20 minutes @fields.Hostname count gt 100
  Risks: ALERT_NORMAL    

History:

User Date
ho*d@fluencysecurity.com 2021 Oct 4 16:44:57 EDT

This page was automatically created/formatted on Tue, 2021 Oct 19 00:29:17 EDT, from rule_dump.json (db47c470500ce8686ead334f5eda0596)