Anomalous User Activity

testhigh
Log-Quelle: azure · riskdetectionAutor Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'Datum 2023-09-03
01

Beschreibung

Was dies ist, in Kürze.

Indicates that there are anomalous patterns of behavior like suspicious changes to the directory.

02

Tags

attack.privilege-escalationattack.t1098attack.persistence
03

Regelquelle (YAML)

title: Anomalous User Activity
id: 258b6593-215d-4a26-a141-c8e31c1299a6
status: test
description: Indicates that there are anomalous patterns of behavior like suspicious changes to the directory.
references:
    - https://learn.microsoft.com/en-us/entra/id-protection/concept-identity-protection-risks#anomalous-user-activity
    - https://learn.microsoft.com/en-us/entra/architecture/security-operations-user-accounts#unusual-sign-ins
author: Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'
date: 2023-09-03
tags:
    - attack.privilege-escalation
    - attack.t1098
    - attack.persistence
logsource:
    product: azure
    service: riskdetection
detection:
    selection:
        riskEventType: 'anomalousUserActivity'
    condition: selection
falsepositives:
    - We recommend investigating the sessions flagged by this detection in the context of other sign-ins from the user.
level: high
04

erkennt Techniken (1)

ATT&CK-Techniken, die dies ermöglicht oder abbildet.

05

Referenzen

Externe Belege — Patches, Meldungen, Analysen.