Rare Subscription-level Operations In Azure
mediumCloud & SaaSSingle eventexperimentalsigma.azure_activity_logs_azure_rare_operations · v1.0.0
What it detects
Identifies IPs from which users grant access to other users on azure resources and alerts when a previously unseen source IP address is used.
MITRE ATT&CK mapping
- T1003OS Credential Dumping· Credential Access
False positives and triage
Valid change
The rule
Declarative YAML read by the detection engine — data, never executed. Confidence 60%. Source: rules/sigma/sigma.azure_activity_logs_azure_rare_operations.yaml, licensed under the Detection Rule License 1.1.
id: sigma.azure_activity_logs_azure_rare_operations
version: 1.0.0
status: experimental
severity: medium
confidence: 0.6
platforms:
- application
mitre_techniques:
- T1003
description: Identifies IPs from which users grant access to other users on azure resources and alerts when a previously unseen source IP address is used.
match:
event_category: system
raw_message_contains_any:
- 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
false_positive_guidance: Valid change
Converted from the SigmaHQ rule “Rare Subscription-level Operations In Azure” by sawwinnnaung, distributed under the Detection Rule License 1.1. Original rule.
Related detections
Run this rule on your own logs — offline
KIROSEC runs this rule and the rest of the library over Windows, Linux, macOS and cloud audit logs on the analyst's own machine. Every alert links to the events that raised it, and nothing leaves the device.