Persistent Scripts in the Startup Directory

Last updated 2 months ago on 2025-03-20
Created 5 years ago on 2020-11-18

About

Identifies script engines creating files in the Startup folder, or the creation of script files in the Startup folder. Adversaries may abuse this technique to maintain persistence in an environment.
Tags
Domain: EndpointOS: WindowsUse Case: Threat DetectionTactic: PersistenceData Source: Elastic EndgameData Source: Elastic DefendData Source: SysmonData Source: Microsoft Defender for EndpointData Source: SentinelOneLanguage: eql
Severity
medium
Risk Score
47
MITRE ATT&CK™

Persistence (TA0003)(opens in a new tab or window)

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

Definition

Rule Type
Event Correlation Rule
Integration Pack
Prebuilt Security Detection Rules
Index Patterns
winlogbeat-*logs-endpoint.events.file-*logs-windows.sysmon_operational-*endgame-*logs-m365_defender.event-*logs-sentinel_one_cloud_funnel.*
Related Integrations

endpoint(opens in a new tab or window)

windows(opens in a new tab or window)

m365_defender(opens in a new tab or window)

sentinel_one_cloud_funnel(opens in a new tab or window)

Query
file where host.os.type == "windows" and event.type != "deletion" and

  /* Call attention to file extensions that may be used for malicious purposes */
  /* Optionally, Windows scripting engine processes targeting shortcut files */
  (
    file.extension : ("vbs", "vbe", "wsh", "wsf", "js") or
    process.name : ("wscript.exe", "cscript.exe")
  ) and not (startsWith(user.domain, "NT") or endsWith(user.domain, "NT"))

  /* Identify files created or changed in the startup folder */
  and file.path : (
        "?:\\Users\\*\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\Startup\\*",
        "?:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Programs\\StartUp\\*")

Install detection rules in Elastic Security

Detect Persistent Scripts in the Startup Directory 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).