Sigma rule: First Time Seen Remote Named Pipe - Zeek

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-456d254806bb, updated 2022-12-27T00:00:00.000Z.

Rule

Title
First Time Seen Remote Named Pipe - Zeek
Status
test
Level
high
Author
Samir Bousseaden, @neu5ron, Tim Shelton
Date
2020-04-02
Modified
2022-12-27
File
rules/network/zeek/zeek_smb_converted_win_lm_namedpipe.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

This detection excludes known namped pipes accessible remotely and notify on newly observed ones, may help to detect lateral movement and remote exec using named pipes

Log source

product
zeek
service
smb_files

Detection

selection:
    path: '\\\\\*\\IPC$' # Looking for the string \\*\IPC$
filter_keywords:
    - 'samr'
    - 'lsarpc'
    - 'winreg'
    - 'netlogon'
    - 'srvsvc'
    - 'protected_storage'
    - 'wkssvc'
    - 'browser'
    - 'netdfs'
    - 'svcctl'
    - 'spoolss'
    - 'ntsvcs'
    - 'LSM_API_service'
    - 'HydraLsPipe'
    - 'TermSrv_API_service'
    - 'MsFteWds'
condition: selection and not 1 of filter_*

False positives (as the rule lists them)

  • Update the excluded named pipe to filter out any newly observed legit named pipe

Tags

  • attack.lateral-movement
  • attack.t1021.002

MITRE ATT&CK ids this rule names

Related rules

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_smb_converted_win_lm_namedpipe.yml

Sources and licences

  • SigmaHQ

    "First Time Seen Remote Named Pipe - Zeek" by Samir Bousseaden, @neu5ron, Tim Shelton (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/network/zeek/zeek_smb_converted_win_lm_namedpipe.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: First Time Seen Remote Named Pipe - Zeek",
entity page, dataset version ref-456d254806bb, updated 2022-12-27T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/021310d9-30a6-480a-84b7-eaa69aeb92bb (accessed 2026-11-03).
Underlying source: SigmaHQ rule 021310d9-30a6-480a-84b7-eaa69aeb92bb, 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.