title: System Eventlog Cleared
id: a62b37e0-45d3-48d9-a517-90c1a1b0186b
related:
    - id: f2f01843-e7b8-4f95-a35a-d23584476423
      type: obsoletes
    - id: d99b79d2-0a6f-4f46-ad8b-260b6e17f982
      type: derived
description: One of the Windows Eventlogs has been cleared. e.g. caused by "wevtutil cl" command execution
status: experimental
references:
    - https://twitter.com/deviouspolack/status/832535435960209408
    - https://www.hybrid-analysis.com/sample/027cc450ef5f8c5f653329641ec1fed91f694e0d229928963b30f6b0d7d3a745?environmentId=100
author: Florian Roth
date: 2017/01/10
modified: 2022/01/07
tags:
    - attack.defense_evasion
    - attack.t1070.001
    - car.2016-04-002
logsource:
    product: windows
    service: system
detection:
    selection:
        EventID: 104
        Provider_Name: Microsoft-Windows-Eventlog
    condition: selection
falsepositives:
    - Rollout of log collection agents (the setup routine often includes a reset of the local Eventlog)
    - System provisioning (system reset before the golden image creation)
level: high

