Sigma rule: Equation Group DLL_U Export Function Load

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-ed3b714940c3, updated 2023-03-09T00:00:00.000Z.

Rule

Title
Equation Group DLL_U Export Function Load
Status
stable
Level
critical
Author
Florian Roth (Nextron Systems)
Date
2019-03-04
Modified
2023-03-09
File
rules-emerging-threats/2019/TA/EquationGroup/proc_creation_win_apt_equationgroup_dll_u_load.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects a specific export function name used by one of EquationGroup tools

Log source

product
windows
category
process_creation

Detection

selection:
    - CommandLine|contains: '-export dll_u'
    - CommandLine|endswith:
          - ',dll_u'
          - ' dll_u'
condition: selection

False positives (as the rule lists them)

  • Unlikely

Tags

  • attack.stealth
  • attack.g0020
  • attack.t1218.011
  • detection.emerging-threats

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-emerging-threats/2019/TA/EquationGroup/proc_creation_win_apt_equationgroup_dll_u_load.yml

Sources and licences

  • SigmaHQ

    "Equation Group DLL_U Export Function Load" by Florian Roth (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2019/TA/EquationGroup/proc_creation_win_apt_equationgroup_dll_u_load.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: Equation Group DLL_U Export Function Load",
entity page, dataset version ref-ed3b714940c3, updated 2023-03-09T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/d465d1d8-27a2-4cca-9621-a800f37cf72e (accessed 2026-11-03).
Underlying source: SigmaHQ rule d465d1d8-27a2-4cca-9621-a800f37cf72e, 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.