M365 Identity Login from Atypical Region

Last updated a month ago on 2026-07-08

Created 2 years ago on 2024-09-04

About

Detects successful Microsoft 365 portal logins from a country and region the user has not previously authenticated from in a specific time window. Atypical regions are identified by combining the user's country and region geolocation history; an authentication from a new country/region pair for that user may indicate an adversary attempting to access the account from an unusual location or behind a VPN.

Tags

Domain: CloudDomain: IdentityData Source: Microsoft 365Data Source: Microsoft 365 Audit LogsUse Case: Threat DetectionUse Case: Identity and Access AuditTactic: Initial AccessLanguage: kuery

Severity

medium

Risk Score

MITRE ATT&CK™

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

↳ Valid Accounts (T1078)(external, 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" Mobile access may also result in false positives, as users may log in from various locations while on the go.

License

Elastic License v2(external, opens in a new tab or window)

Definition

Rule Type: New Terms Rule
Integration Pack: Prebuilt Security Detection Rules
Index Patterns: logs-o365.audit-*
Related Integrations: o365(external, opens in a new tab or window)
Query

✄𐘗text code block:
✄𐘗data_stream.dataset:o365.audit and 
    event.provider:AzureActiveDirectory and
    event.action:UserLoggedIn and event.outcome:success and
    o365.audit.Target.Type:(0 or 2 or 3 or 5 or 6 or 10) and
    o365.audit.UserId:(* and not "Not Available") and
    source.geo.country_name:* and
    source.geo.region_name:* and
    o365.audit.ApplicationId:(* and not (
        08e18876-6177-487e-b8b5-cf950c1e598c or
        29d9ed98-a469-4536-ade2-f981bc1d605e or
        38aa3b87-a06d-4817-b275-7a316988d93b or
        3e62f81e-590b-425b-9531-cad6683656cf or
        a809996b-059e-42e2-9866-db24b99a9782 or
        d7b530a4-7680-4c23-a8bf-c52c121d2e87
    )) and
    o365.audit.ExtendedProperties.RequestType:(* and not (
        "Consent:Set" or
        "DeviceAuth:ReprocessTls" or
        "Federation:oauth2claimsprovider" or
        "Federation:oauth2msa" or
        "Kmsi:kmsi" or
        "Login:reprocess" or
        "Login:resume" or
        "MessagePrompt:MessagePrompt" or
        "OrgIdWsFederation:federation" or 
        "PermitSso:PermitSso" or
        "SAS:EndAuth" or
        "SAS:ProcessAuth" or
        "SSPR:end" or
        "Saml2:processrequest" or
        "WsFederation:wsfederation"
    )) and
    not user_agent.original:(*Android* or *PKeyAuth* or *WebView* or *iPad* or *iPhone*)

Install detection rules in Elastic Security

Detect M365 Identity Login from Atypical Region 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(external, opens in a new tab or window).