Malicious IP Address Sign-In Failure Rate

testhigh
Log-Quelle: azure · riskdetectionAutor Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'Datum 2023-09-07
01

Beschreibung

Was dies ist, in Kürze.

Indicates sign-in from a malicious IP address based on high failure rates.

02

Tags

attack.t1090attack.command-and-control
03

Regelquelle (YAML)

title: Malicious IP Address Sign-In Failure Rate
id: a3f55ebd-0c01-4ed6-adc0-8fb76d8cd3cd
status: test
description: Indicates sign-in from a malicious IP address based on high failure rates.
references:
    - https://learn.microsoft.com/en-us/entra/id-protection/concept-identity-protection-risks#malicious-ip-address
    - https://learn.microsoft.com/en-us/entra/architecture/security-operations-user-accounts#unusual-sign-ins
author: Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'
date: 2023-09-07
tags:
    - attack.t1090
    - attack.command-and-control
logsource:
    product: azure
    service: riskdetection
detection:
    selection:
        riskEventType: 'maliciousIPAddress'
    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.