Detection rules › Sigma
DNS HybridConnectionManager Service Bus
Detects Azure Hybrid Connection Manager services querying the Azure service bus service
Known false positives
- Legitimate use of Azure Hybrid Connection Manager and the Azure Service Bus service
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Persistence |
Telemetry coverage
| Provider | Record / event type |
|---|---|
| Sysmon | Event ID 22: DNSEvent (DNS query) |
Rule body
title: DNS HybridConnectionManager Service Bus
id: 7bd3902d-8b8b-4dd4-838a-c6862d40150d
status: test
description: Detects Azure Hybrid Connection Manager services querying the Azure service bus service
references:
- https://twitter.com/Cyb3rWard0g/status/1381642789369286662
author: Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research)
date: 2021-04-12
modified: 2023-01-16
tags:
- attack.persistence
- attack.t1554
logsource:
product: windows
category: dns_query
detection:
selection:
QueryName|contains: 'servicebus.windows.net'
Image|contains: 'HybridConnectionManager'
condition: selection
falsepositives:
- Legitimate use of Azure Hybrid Connection Manager and the Azure Service Bus service
level: high
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
QueryName|contains: 'servicebus.windows.net'
Image|contains: 'HybridConnectionManager'
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
Image | match |
| field:"Image" kind:match value:"HybridConnectionManager" |
QueryName | match |
| field:"QueryName" kind:match value:"servicebus.windows.net" |