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O365_Login_From_New_ISP

ID: 100402

Description:

An O365 user logged in from a new ISP

Repository: Group: Office365ES Type: event

Default Status:

Enabled

Tags:
Office365
 

Selector:

Query:

Filters:

Field MUST hit
input.type o365audit
o365.audit.Operation UserLoggedIn
o365.audit.UserType 0
o365.audit.ResultStatus Succeeded
Field MUST NOT hit
_ip.isp Microsoft Corporation
o365.audit.LogonError InvalidPasswordExpiredPassword
  UserAccountNotFound
  UserInformationNotProvided

Behavior Rule:

Key Type Behavior Category
o365.audit.UserId username application activity

Risks:

Risks Base Score Dimension
     

Attributes:

Alias Key
Operation o365.audit.Operation
Username o365.audit.UserId
Workload o365.audit.Workload
City _ip.city
Country _ip.country
ISP _ip.isp

Correlation Rules:

First Occurrence:

Name Window Fields
NewISP 20 days _ip.isp
  Risks: SUSPICIOUS_GEO

History:

| User | Date | | :— | :— | | — | — |

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