OpenCanary SIP Request on Honeypot Node
Alerts on OpenCanary logs showing SIP request activity on a configured SIP service.
FreeReviewedSigma · High · v5
- Product
- opencanary
- Category
- application
- Author
- Security Onion Solutions (SigmaHQ), DRL 1.1
- Published
- 2024-03-08
- Updated
- 2026-07-31
ATT&CK techniques
CollectionRecon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact
What it detects
Identifies when an OpenCanary node logs an SIP request event from its SIP service. Attackers may probe or interact with exposed services to enumerate reachability and attempt protocol-level interactions. The rule relies on OpenCanary application telemetry identifying SIP request records by log type.
Reporting behind it
- opencanary.readthedocs.iohttps://opencanary.readthedocs.io/en/latest/starting/configuration.html#services-configuration
- github.comhttps://github.com/thinkst/opencanary/blob/a0896adfcaf0328cfd5829fe10d2878c7445138e/opencanary/logger.py#L52
- github.comhttps://github.com/SigmaHQ/sigma/blob/master/rules/application/opencanary/opencanary_sip_request.yml
Changelog
v5- v5Candidate ingested via manual entry.2026-07-31
- v4Candidate ingested via manual entry.2026-07-31
- v3Candidate ingested via manual entry.2026-07-31
- v2Candidate ingested via manual entry.2026-07-31
- v1No changelog recorded for this version.2026-07-30
Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.
opencanary-sip-request-activity-application-logs-e30de276
title: OpenCanary SIP Request on Honeypot Node
id: 691b324d-0e47-43bf-b9a0-7540df3aefe0
status: test
description: Identifies when an OpenCanary node logs an SIP request event from its SIP service. Attackers may probe or interact with exposed services to enumerate reachability and attempt protocol-level interactions. The rule relies on OpenCanary application telemetry identifying SIP request records by log type.
references:
- https://opencanary.readthedocs.io/en/latest/starting/configuration.html#services-configuration
- https://github.com/thinkst/opencanary/blob/a0896adfcaf0328cfd5829fe10d2878c7445138e/opencanary/logger.py#L52
- https://github.com/SigmaHQ/sigma/blob/master/rules/application/opencanary/opencanary_sip_request.yml
author: Security Onion Solutions, Huntrule Team
date: 2024-03-08
tags:
- attack.collection
- attack.t1123
logsource:
category: application
product: opencanary
detection:
selection:
logtype: 15001
condition: selection
falsepositives:
- Unlikely
level: high
license: DRL-1.1
related:
- id: e30de276-68ec-435c-ab99-ef3befec6c61
type: derived