New Kind of Network (NKN) Detection

calendar Oct 17, 2023 · attack.command_and_control  ·
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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>

Sigma rule (View on GitHub)

 1title: New Kind of Network (NKN) Detection
 2id: fa7703d6-0ee8-4949-889c-48c84bc15b6f
 3status: test
 4description: 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>
 5references:
 6    - https://github.com/nknorg/nkn-sdk-go
 7    - https://unit42.paloaltonetworks.com/manageengine-godzilla-nglite-kdcsponge/
 8    - https://github.com/Maka8ka/NGLite
 9author: Michael Portera (@mportatoes)
10date: 2022/04/21
11tags:
12    - attack.command_and_control
13logsource:
14    product: zeek
15    service: dns
16detection:
17    selection:
18        query|contains|all:
19            - 'seed'
20            - '.nkn.org'
21    condition: selection
22fields:
23    - id.orig_h
24    - id.resp_h
25    - answers
26falsepositives:
27    - Unknown
28level: low

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