Rare Subscription-level Operations In Azure (via activitylogs)
This rule detects IPs from which users grant access to other users on azure resources and alerts when a previously unseen source IP address is used.
SigmamediumCloudv1
sigma
rare-subscription-level-operations-in-azure-via-activitylogs
title: Rare Subscription-level Operations In Azure (via activitylogs)
id: 2a2c1ea6-8e08-5f58-9ef8-649cca1a0b05
status: stable
description: This rule detects IPs from which users grant access to other users on azure resources and alerts when a previously unseen source IP address is used.
references:
- https://attack.mitre.org/techniques/T1003/
- https://github.com/Azure/Azure-Sentinel/blob/e534407884b1ec5371efc9f76ead282176c9e8bb/Detections/AzureActivity/RareOperations.yaml
author: Huntrule Team
date: 2026-02-12
tags:
- attack.t1003
- attack.credential-access
logsource:
product: azure
service: activitylogs
detection:
keywords:
- Microsoft.DocumentDB/databaseAccounts/listKeys/action
- Microsoft.Maps/accounts/listKeys/action
- Microsoft.Media/mediaservices/listKeys/action
- Microsoft.CognitiveServices/accounts/listKeys/action
- Microsoft.Storage/storageAccounts/listKeys/action
- Microsoft.Compute/snapshots/write
- Microsoft.Network/networkSecurityGroups/write
condition: keywords
falsepositives:
- Unknown
level: medium
Known false positives
- Unknown
Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.