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Creation of a Hidden Local User Account
editCreation of a Hidden Local User Account
editIdentifies the creation of a hidden local user account by appending the dollar sign to the account name. This is sometimes done by attackers to increase access to a system and avoid appearing in the results of accounts listing using the net users command.
Rule type: eql
Rule indices:
- winlogbeat-*
- logs-endpoint.events.*
- logs-windows.*
Severity: high
Risk score: 73
Runs every: 5m
Searches indices from: now-9m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
References:
Tags:
- Elastic
- Host
- Windows
- Threat Detection
- Persistence
Version: 2
Rule authors:
- Elastic
Rule license: Elastic License v2
Rule query
editregistry where registry.path : "HKLM\\SAM\\SAM\\Domains\\Account\\Users\\Names\\*$\\"
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Persistence
- ID: TA0003
- Reference URL: https://attack.mitre.org/tactics/TA0003/
-
Technique:
- Name: Create Account
- ID: T1136
- Reference URL: https://attack.mitre.org/techniques/T1136/
-
Sub-technique:
- Name: Local Account
- ID: T1136.001
- Reference URL: https://attack.mitre.org/techniques/T1136/001/