Sigma rule: OpenCanary - HTTP POST Login Attempt

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-934f030cb23e, updated 2024-03-08T00:00:00.000Z.

Rule

Title: OpenCanary - HTTP POST Login Attempt
Status: test
Level: high
Author: Security Onion Solutions
Date: 2024-03-08
File: rules/application/opencanary/opencanary_http_post_login_attempt.yml
Commit: ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects instances where an HTTP service on an OpenCanary node has had login attempt via Form POST.

Log source

product: opencanary
category: application

Detection

selection:
    logtype: 3001
condition: selection

False positives (as the rule lists them)

Unlikely

MITRE ATT&CK ids this rule names

T1190

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_http_post_login_attempt.yml

Sources and licences

SigmaHQ
"OpenCanary - HTTP POST Login Attempt" by Security Onion Solutions (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/application/opencanary/opencanary_http_post_login_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 - HTTP POST Login Attempt",
entity page, dataset version ref-934f030cb23e, updated 2024-03-08T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/af1ac430-df6b-4b38-b976-0b52f07a0252 (accessed 2026-11-03).
Underlying source: SigmaHQ rule af1ac430-df6b-4b38-b976-0b52f07a0252, 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.