PowerShell Script with Log Clear Capabilities

Last updated a month ago on 2025-03-20
Created 2 years ago on 2023-07-06

About

Identifies the use of Cmdlets and methods related to Windows event log deletion activities. This is often done by attackers in an attempt to evade detection or destroy forensic evidence on a system.
Tags
Domain: EndpointOS: WindowsUse Case: Threat DetectionTactic: Defense EvasionData Source: PowerShell LogsRule Type: BBRLanguage: kuery
Severity
low
Risk Score
21
MITRE ATT&CK™

Defense Evasion (TA0005)(opens in a new tab or window)

Execution (TA0002)(opens in a new tab or window)

License
Elastic License v2(opens in a new tab or window)

Definition

Rule Type
Query (Kibana Query Language)
Integration Pack
Prebuilt Security Detection Rules
Index Patterns
winlogbeat-*logs-windows.powershell*
Related Integrations

windows(opens in a new tab or window)

Query
event.category:process and host.os.type:windows and
  powershell.file.script_block_text : (
    "Clear-EventLog" or
    "Remove-EventLog" or
    ("Eventing.Reader.EventLogSession" and ".ClearLog") or
    ("Diagnostics.EventLog" and ".Clear")
  ) and
  not powershell.file.script_block_text : (
    "CmdletsToExport=@(\"Add-Content\""
  ) and
  not file.directory : "C:\Program Files\WindowsAdminCenter\PowerShellModules\Microsoft.WindowsAdminCenter.Configuration"

Install detection rules in Elastic Security

Detect PowerShell Script with Log Clear Capabilities in the Elastic Security detection engine by installing this rule into your Elastic Stack.

To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(opens in a new tab or window).