Sigma rule: SMB Spoolss Name Piped Usage

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-23417328d405, updated 2022-10-09T00:00:00.000Z.

Rule

Title
SMB Spoolss Name Piped Usage
Status
test
Level
medium
Author
OTR (Open Threat Research), @neu5ron
Date
2018-11-28
Modified
2022-10-09
File
rules/network/zeek/zeek_dce_rpc_smb_spoolss_named_pipe.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects the use of the spoolss named pipe over SMB. This can be used to trigger the authentication via NTLM of any machine that has the spoolservice enabled.

Log source

product
zeek
service
smb_files

Detection

selection:
    path|endswith: 'IPC$'
    name: spoolss
condition: selection

False positives (as the rule lists them)

  • Domain Controllers that are sometimes, commonly although should not be, acting as printer servers too

Tags

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

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/network/zeek/zeek_dce_rpc_smb_spoolss_named_pipe.yml

Sources and licences

  • SigmaHQ

    "SMB Spoolss Name Piped Usage" by OTR (Open Threat Research), @neu5ron (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/network/zeek/zeek_dce_rpc_smb_spoolss_named_pipe.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: SMB Spoolss Name Piped Usage",
entity page, dataset version ref-23417328d405, updated 2022-10-09T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/bae2865c-5565-470d-b505-9496c87d0c30 (accessed 2026-11-03).
Underlying source: SigmaHQ rule bae2865c-5565-470d-b505-9496c87d0c30, 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.