Sigma rule: Successful Authentications From Countries You Do Not Operate Out Of

Rule

Title

Successful Authentications From Countries You Do Not Operate Out Of

Status

test

Level

medium

Author

MikeDuddington, '@dudders1'

Date

2022-07-28

Modified

2026-05-08

File

rules-placeholder/cloud/azure/signin_logs/azure_ad_authentications_from_countries_you_do_not_operate_out_of.yml

Commit

ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detect successful authentications from countries you do not operate out of.

Log source

product

azure

service

signinlogs

Detection

selection:
    resultType: 0
filter_main_known_location:
    location|contains|expand: '%Known_Location%'
condition: selection and not 1 of filter_main_*

False positives (as the rule lists them)

• Sometime connection to/from VPN, tunneling or cloud services can generate fps.

Tags

• attack.privilege-escalation
• attack.persistence
• attack.initial-access
• attack.credential-access
• attack.stealth
• attack.t1078.004
• attack.t1110

MITRE ATT&CK ids this rule names

• T1078.004
• T1110

References

• https://learn.microsoft.com/en-gb/entra/architecture/security-operations-user-accounts
• https://ishitasingh724.medium.com/cracking-kql-how-a-suspicious-login-alert-led-me-into-the-world-of-threat-hunting-and-the-10-kql-4ea6366ff0b3

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-placeholder/cloud/azure/signin_logs/azure_ad_authentications_from_countries_you_do_not_operate_out_of.yml