Sigma rule: New Kind of Network (NKN) Detection

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-166c2b4babf3, updated 2022-04-21T00:00:00.000Z.

Rule

Title: New Kind of Network (NKN) Detection
Status: test
Level: low
Author: Michael Portera (@mportatoes)
Date: 2022-04-21
File: rules/network/zeek/zeek_dns_nkn.yml
Commit: ccbb0369507f796db0b0ae6854c8a2be471b9d84

NKN is a networking service using blockchain technology to support a decentralized network of peers. While there are legitimate uses for it, it can also be used as a C2 channel. This rule looks for a DNS request to the ma>

Log source

product: zeek
service: dns

Detection

selection:
    query|contains|all:
        - 'seed'
        - '.nkn.org'
condition: selection

False positives (as the rule lists them)

Unknown

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/network/zeek/zeek_dns_nkn.yml

Sources and licences

SigmaHQ
"New Kind of Network (NKN) Detection" by Michael Portera (@mportatoes) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/network/zeek/zeek_dns_nkn.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: New Kind of Network (NKN) Detection",
entity page, dataset version ref-166c2b4babf3, updated 2022-04-21T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/fa7703d6-0ee8-4949-889c-48c84bc15b6f (accessed 2026-11-03).
Underlying source: SigmaHQ rule fa7703d6-0ee8-4949-889c-48c84bc15b6f, 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.