Anonymous IP Address

Description

Indicates sign-ins from an anonymous IP address, for example, using an anonymous browser or VPN.

Query · sigma

selection:
  riskEventType: anonymizedIPAddress
condition: selection

Known false positives

  • We recommend investigating the sessions flagged by this detection in the context of other sign-ins
Raw source Anonymous IP Address · Sigma
Esc
Published by SigmaHQ/sigma ↗, licensed under Detection Rule License 1.1 ↗. Reproduced here unmodified. 
title: Anonymous IP Address
id: 53acd925-2003-440d-a1f3-71a5253fe237
status: test
description: Indicates sign-ins from an anonymous IP address, for example, using an anonymous browser or VPN.
references:
    - https://learn.microsoft.com/en-us/graph/api/resources/riskdetection?view=graph-rest-1.0
    - https://learn.microsoft.com/en-us/entra/id-protection/concept-identity-protection-risks#anonymous-ip-address
author: Gloria Lee, '@gleeiamglo'
date: 2023-08-22
tags:
    - attack.t1528
    - attack.credential-access
logsource:
    product: azure
    service: riskdetection
detection:
    selection:
        riskEventType: 'anonymizedIPAddress'
    condition: selection
falsepositives:
    - We recommend investigating the sessions flagged by this detection in the context of other sign-ins
level: high

Detection rules belong to the projects that publish them and remain under their own licenses. This site indexes and links to them; it claims no rights in them.