Sigma rule: OpenCanary - RDP New Connection Attempt

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-e735dff1d557, updated 2026-01-06T00:00:00.000Z.

Rule

Title
OpenCanary - RDP New Connection Attempt
Status
experimental
Level
high
Author
Marco Pedrinazzi (@pedrinazziM)
Date
2026-01-06
File
rules/application/opencanary/opencanary_rdp_connection_attempt.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects instances where an RDP service on an OpenCanary node has had a connection attempt.

Log source

product
opencanary
category
application

Detection

selection:
    logtype: 14001
condition: selection

False positives (as the rule lists them)

  • Unlikely

Tags

  • attack.initial-access
  • attack.lateral-movement
  • attack.persistence
  • attack.t1133
  • attack.t1021.001

MITRE ATT&CK ids this rule names

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/application/opencanary/opencanary_rdp_connection_attempt.yml

Sources and licences

  • SigmaHQ

    "OpenCanary - RDP New Connection Attempt" by Marco Pedrinazzi (@pedrinazziM) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/application/opencanary/opencanary_rdp_connection_attempt.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: OpenCanary - RDP New Connection Attempt",
entity page, dataset version ref-e735dff1d557, updated 2026-01-06T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/598290cf-5932-45cd-9123-be1e05ab4f2e (accessed 2026-11-03).
Underlying source: SigmaHQ rule 598290cf-5932-45cd-9123-be1e05ab4f2e, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.