Sigma rule: Wmiexec Default Output File

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-faded2b2ce52, updated 2023-03-08T00:00:00.000Z.

Rule

Title
Wmiexec Default Output File
Status
test
Level
critical
Author
Nasreddine Bencherchali (Nextron Systems)
Date
2022-06-02
Modified
2023-03-08
File
rules/windows/file/file_event/file_event_win_wmiexec_default_filename.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects the creation of the default output filename used by the wmiexec tool

Log source

product
windows
category
file_event

Detection

selection:
    - TargetFilename|re: '\\Windows\\__1\d{9}\.\d{1,7}$' # Admin$
    - TargetFilename|re: 'C:\\__1\d{9}\.\d{1,7}$' # C$
    - TargetFilename|re: 'D:\\__1\d{9}\.\d{1,7}$' # D$
condition: selection

False positives (as the rule lists them)

  • Unlikely

Tags

  • attack.lateral-movement
  • attack.execution
  • attack.t1047

MITRE ATT&CK ids this rule names

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/file/file_event/file_event_win_wmiexec_default_filename.yml

Sources and licences

  • SigmaHQ

    "Wmiexec Default Output File" by Nasreddine Bencherchali (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/file/file_event/file_event_win_wmiexec_default_filename.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: Wmiexec Default Output File",
entity page, dataset version ref-faded2b2ce52, updated 2023-03-08T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/8d5aca11-22b3-4f22-b7ba-90e60533e1fb (accessed 2026-11-03).
Underlying source: SigmaHQ rule 8d5aca11-22b3-4f22-b7ba-90e60533e1fb, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.