Sigma rule: Userdomain Variable Enumeration

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-29fc1335dc72, updated 2024-08-01T00:00:00.000Z.

Rule

Title
Userdomain Variable Enumeration
Status
test
Level
low
Author
Christopher Peacock @SecurePeacock, SCYTHE @scythe_io
Date
2023-02-09
Modified
2024-08-01
File
rules-placeholder/windows/process_creation/proc_creation_win_userdomain_variable_enumeration.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects suspicious enumeration of the domain the user is associated with.

Log source

product
windows
category
process_creation

Detection

selection:
    CommandLine|contains: 'echo '
    CommandLine|contains|expand: '%userdomain%'
condition: selection

False positives (as the rule lists them)

  • Certain scripts or applications may leverage this.

Tags

  • attack.discovery
  • attack.t1016

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-placeholder/windows/process_creation/proc_creation_win_userdomain_variable_enumeration.yml

Sources and licences

  • SigmaHQ

    "Userdomain Variable Enumeration" by Christopher Peacock @SecurePeacock, SCYTHE @scythe_io (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-placeholder/windows/process_creation/proc_creation_win_userdomain_variable_enumeration.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: Userdomain Variable Enumeration",
entity page, dataset version ref-29fc1335dc72, updated 2024-08-01T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/43311e65-84d8-42a5-b3d4-c94d9b67038f (accessed 2026-11-03).
Underlying source: SigmaHQ rule 43311e65-84d8-42a5-b3d4-c94d9b67038f, 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.