User Logoff Event — Sigma Rule

Rule metadata and linked tags

Author: frack113. Source status: test; severity: informational. Source dates: 2022-10-14 / not supplied.

{
  "service": "security",
  "product": "windows"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 9f84873739f933781b3d4e5acf6a1e66d4294b864c3eda305af5a6787376cef3

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: User Logoff Event
id: 0badd08f-c6a3-4630-90d3-6875cca440be
status: test
description: Detects a user log-off activity. Could be used for example to correlate information during forensic investigations
references:
    - https://github.com/Yamato-Security/EnableWindowsLogSettings/blob/7f6d755d45ac7cc9fc35b0cbf498e6aa4ef19def/ConfiguringSecurityLogAuditPolicies.md
    - https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-10/security/threat-protection/auditing/event-4634
    - https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-10/security/threat-protection/auditing/event-4647
author: frack113
date: 2022-10-14
tags:
    - attack.impact
    - attack.t1531
logsource:
    service: security
    product: windows
detection:
    selection:
        EventID:
            - 4634
            - 4647
    condition: selection
falsepositives:
    - Unknown
level: informational

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://github.com/Yamato-Security/EnableWindowsLogSettings/blob/7f6d755d45ac7cc9fc35b0cbf498e6aa4ef19def/ConfiguringSecurityLogAuditPolicies.md
• https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-10/security/threat-protection/auditing/event-4634
• https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-10/security/threat-protection/auditing/event-4647