Elastic Security Detection Rules

Alternate Data Stream Creation/Execution at Volume Root Directory

Last updated 5 months ago on 2025-03-20
Created a year ago on 2024-03-14

About

Identifies the creation of an Alternate Data Stream (ADS) at a volume root directory, which can indicate the attempt to hide tools and malware, as ADSs created in this directory are not displayed by system utilities.
Tags
Domain: EndpointOS: WindowsUse Case: Threat DetectionTactic: Defense EvasionData Source: Elastic DefendData Source: SysmonData Source: Microsoft Defender for EndpointData Source: SentinelOneData Source: Elastic EndgameLanguage: eql
Severity
medium
Risk Score
47
MITRE ATT&CK™

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

↳ Hide Artifacts (T1564)(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.process-*logs-endpoint.events.file-*logs-windows.sysmon_operational-*logs-m365_defender.event-*logs-sentinel_one_cloud_funnel.*endgame-*
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
any where host.os.type == "windows" and event.category in ("file", "process") and
  (
    (event.type == "creation" and file.path regex~ """[A-Z]:\\:.+""") or
    (event.type == "start" and process.executable regex~ """[A-Z]:\\:.+""")
  )

Install detection rules in Elastic Security

Detect Alternate Data Stream Creation/Execution at Volume Root 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).