Sigma rule: Nginx Core Dump

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-cc344ed81f58, updated 2023-05-08T00:00:00.000Z.

Rule

Title
Nginx Core Dump
Status
test
Level
high
Author
Florian Roth (Nextron Systems)
Date
2021-05-31
Modified
2023-05-08
File
rules/web/product/nginx/web_nginx_core_dump.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects a core dump of a crashing Nginx worker process, which could be a signal of a serious problem or exploitation attempts.

Log source

service
nginx

Detection

keywords:
    - 'exited on signal 6 (core dumped)'
condition: keywords

False positives (as the rule lists them)

  • Serious issues with a configuration or plugin

Tags

  • attack.impact
  • attack.t1499.004

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/web/product/nginx/web_nginx_core_dump.yml

Sources and licences

  • SigmaHQ

    "Nginx Core Dump" by Florian Roth (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/web/product/nginx/web_nginx_core_dump.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: Nginx Core Dump",
entity page, dataset version ref-cc344ed81f58, updated 2023-05-08T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/59ec40bb-322e-40ab-808d-84fa690d7e56 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 59ec40bb-322e-40ab-808d-84fa690d7e56, 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.