IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.

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Whoami Process Activity

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Whoami Process Activity

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Identifies use of whoami.exe which displays user, group, and privileges information for the user who is currently logged on to the local system.

Rule type: query

Rule indices:

winlogbeat-*
logs-endpoint.events.*

Severity: low

Risk score: 21

Runs every: 5 minutes

Searches indices from: now-6m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

Tags:

Elastic
Host
Windows
Threat Detection
Discovery

Version: 5 (version history)

Added (Elastic Stack release): 7.6.0

Last modified (Elastic Stack release): 7.11.2

Rule authors: Elastic

Rule license: Elastic License

Potential false positives

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Some normal use of this program, at varying levels of frequency, may originate from scripts, automation tools and frameworks. Usage by non-engineers and ordinary users is unusual.

Rule query

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event.category:process and event.type:(start or process_started) and
process.name:whoami.exe

Threat mapping

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Framework: MITRE ATT&CK^TM

Tactic:
- Name: Discovery
- ID: TA0007
- Reference URL: https://attack.mitre.org/tactics/TA0007/
Technique:
- Name: System Owner/User Discovery
- ID: T1033
- Reference URL: https://attack.mitre.org/techniques/T1033/

Rule version history

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Version 5 (7.11.2 release)

Formatting only

Version 4 (7.10.0 release)

Updated query, changed from:

process.name:whoami.exe and event.code:1

Version 3 (7.9.0 release)

Formatting only

Version 2 (7.7.0 release)

Formatting only

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