System Owner/User Discovery Linux

Last updated 21 days ago on 2025-12-24

Created 3 years ago on 2023-07-10

About

Identifies the use of built-in tools which adversaries may use to enumerate the system owner/user of a compromised system.

Tags

Domain: EndpointOS: LinuxUse Case: Threat DetectionTactic: DiscoveryRule Type: BBRData Source: Elastic DefendData Source: Elastic EndgameData Source: SentinelOneLanguage: kuery

Severity

low

Risk Score

MITRE ATT&CK™

Discovery (TA0007)(external, opens in a new tab or window)

↳ System Owner/User Discovery (T1033)(external, opens in a new tab or window)

↳ Permission Groups Discovery (T1069)(external, opens in a new tab or window)

License

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

Definition

Rule Type

New Terms Rule

Integration Pack

Prebuilt Security Detection Rules

Index Patterns

logs-endpoint.events.*endgame-*logs-sentinel_one_cloud_funnel.*

Related Integrations

endpoint(external, opens in a new tab or window)

sentinel_one_cloud_funnel(external, opens in a new tab or window)

Query

✄𐘗text code block:
✄𐘗event.category:process and host.os.type:linux and event.type:start and event.action:(exec or exec_event or start) and
process.name:("whoami" or "w" or "who" or "users" or "id" or "groups")

Install detection rules in Elastic Security

Detect System Owner/User Discovery Linux 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(external, opens in a new tab or window).