Sigma rule: Hidden Local User Creation

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-353f327af1b2, updated 2024-01-16T00:00:00.000Z.

Rule

Title
Hidden Local User Creation
Status
test
Level
high
Author
Christian Burkard (Nextron Systems)
Date
2021-05-03
Modified
2024-01-16
File
rules/windows/builtin/security/win_security_hidden_user_creation.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects the creation of a local hidden user account which should not happen for event ID 4720.

Log source

product
windows
service
security

Detection

selection:
    EventID: 4720
    TargetUserName|endswith: '$'
filter_main_homegroup:
    TargetUserName: 'HomeGroupUser$'
condition: selection and not 1 of filter_main_*

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.persistence
  • attack.t1136.001

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/windows/builtin/security/win_security_hidden_user_creation.yml

Sources and licences

  • SigmaHQ

    "Hidden Local User Creation" by Christian Burkard (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/builtin/security/win_security_hidden_user_creation.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: Hidden Local User Creation",
entity page, dataset version ref-353f327af1b2, updated 2024-01-16T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/7b449a5e-1db5-4dd0-a2dc-4e3a67282538 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 7b449a5e-1db5-4dd0-a2dc-4e3a67282538, 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.