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O365_Exchange_Disable-TransportRule

ID: 100227

Description:

Disable-Transport Rule - KLK

Repository: Fluency Group: Office365 Type: event

Default Status:

Enabled

Tags:    
O365 exchange transport
     

Selector:

Query:

Filters:

Field MUST hit
@sender office365
@fields.Operation Disable-TransportRule
@fields.Workload Exchange
Field MUST NOT hit
   

Behavior Rule:

Key Type Behavior Category
@fields.UserId username security alert

Risks:

Risks Base Score Dimension
ALERT_NORMAL 100 alert
Timeline 0 -

Attributes:

Alias Key
IP @fields.ClientIP
City @fields._ip.city
Country @fields._ip.country
UserName @fields.UserId
RuleID @fields.Id
ISP @fields._ip.isp

Correlation Rules:

First Occurrence:

Name Window Fields
NewUser 2 days @fields.UserId
  Risks: ML_NEW_USER
NewCity 3 days @fields._ip.city
  Risks: ML_NEW_GEO_CITY
NewCountry 5 days @fields._ip.country
  Risks: ML_NEW_GEO_COUNTRY
NewISP 10 days @fields._ip.isp
  Risks: ML_NEW_IP

Aggregation:

Name Window Field AggType Match
MultipleTransportRules 1 hour @fields.Id cardinality gt 1
  Risks: ALERT_NORMAL    

History:

User Date
2021 Apr 6 11:09:49 EDT
ke*y@fluencysecurity.com 2021 Jun 24 10:27:35 EDT

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