Elastic Security Detection Rules

Microsoft 365 Portal Login from Rare Location

Last updated 7 months ago on 2025-01-15
Created a year ago on 2024-09-04

About

Detects successful Microsoft 365 portal logins from rare locations. Rare locations are defined as locations that are not commonly associated with the user's account. This behavior may indicate an adversary attempting to access a Microsoft 365 account from an unusual location or behind a VPN.
Tags
Domain: CloudData Source: Microsoft 365Use Case: Threat DetectionTactic: Initial AccessLanguage: kuery
Severity
medium
Risk Score
47
MITRE ATT&CK™

Initial Access (TA0001)(opens in a new tab or window)

↳ Valid Accounts (T1078)(opens in a new tab or window)

False Positive Examples
False positives may occur when users are using a VPN or when users are traveling to different locations.
License
Elastic License v2(opens in a new tab or window)

Definition

Rule Type
New Terms Rule
Integration Pack
Prebuilt Security Detection Rules
Index Patterns
filebeat-*logs-o365.audit-*
Related Integrations

o365(opens in a new tab or window)

Query
event.dataset: "o365.audit"
    and event.provider: "AzureActiveDirectory"
    and event.action: "UserLoggedIn"
    and event.outcome: "success"
    and not o365.audit.UserId: "Not Available"
    and o365.audit.Target.Type: ("0" or "2" or "3" or "5" or "6" or "10")

Install detection rules in Elastic Security

Detect Microsoft 365 Portal Login from Rare Location in the Elastic Security detection engine by installing this rule into your Elastic Stack.

To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(opens in a new tab or window).