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MediumΣSigmaHQ

Whoami.EXE Execution With Output Option

Detects the execution of "whoami.exe" with the "/FO" flag to choose CSV as output format or with redirection options to export the results to a file for later use.

ATT&CK coverage

T1033System Owner/User Discovery 63 detections cover this technique

Detection requirements

Log source product: windows
Log source category: process_creation

Detection logic

Published to signed-in readers

The query as its source wrote it, its canonical form, and the content hash that pins this exact revision.

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Provenance

Where this detection came from, and what you may do with it.

At source: Open at source
Written by: Florian Roth (Nextron Systems)
Nasreddine Bencherchali (Nextron Systems)
Licence: Detection Rule License 1.1Read the licence
Published: Aug 26, 2026
Version: 1

See also

3,144 from SigmaHQ 3,618 rated medium