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O365_Exchange_New-InboxRule

ID: 100399

Description:

New-Inbox Rule - KLK

Repository: Group: Office365ES Type: event

Default Status:

Enabled

Tags:  
O365 exchange
   

Selector:

Query:

Filters:

Field MUST hit
input.type o365audit
o365.audit.Operation New-InboxRule
o365.audit.Workload Exchange
Field MUST NOT hit
   

Behavior Rule:

Key Type Behavior Category
o365.audit.UserId username security alert

Risks:

Risks Base Score Dimension
     

Attributes:

Alias Key
IP o365.audit.ClientIP
City _ip.city
Country _ip.country
UserName o365.audit.UserId
RuleID o365.audit.Id
ISP _ip.isp

Correlation Rules:

First Occurrence:

Name Window Fields
NewUser 2 days o365.audit.UserId
  Risks: ML_NEW_USER
NewCity 3 days _ip.city
  Risks: ML_NEW_GEO_CITY
NewCountry 5 days _ip.country
  Risks: ML_NEW_GEO_COUNTRY
NewISP 10 days _ip.isp
  Risks: ML_NEW_IP

Aggregation:

Name Window Field AggType Match
MultipleInboxRules 1 hour o365.audit.Id cardinality gt 1
  Risks: ALERT_NORMAL    

History:

| User | Date | | :— | :— | | — | — |

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