Sigma rule: EvilNum APT Golden Chickens Deployment Via OCX Files

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-fc7480a5bc7c, updated 2023-03-09T00:00:00.000Z.

Rule

Title: EvilNum APT Golden Chickens Deployment Via OCX Files
Status: test
Level: critical
Author: Florian Roth (Nextron Systems)
Date: 2020-07-10
Modified: 2023-03-09
File: rules-emerging-threats/2020/TA/Evilnum/proc_creation_win_apt_evilnum_jul20.yml
Commit: ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects Golden Chickens deployment method as used by Evilnum and described in ESET July 2020 report

Log source

product: windows
category: process_creation

Detection

selection:
    CommandLine|contains|all:
        - 'regsvr32'
        - '/s'
        - '/i'
        - '\AppData\Roaming\'
        - '.ocx'
condition: selection

False positives (as the rule lists them)

Unknown

MITRE ATT&CK ids this rule names

T1218.011

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/2020/TA/Evilnum/proc_creation_win_apt_evilnum_jul20.yml

Sources and licences

SigmaHQ
"EvilNum APT Golden Chickens Deployment Via OCX Files" by Florian Roth (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2020/TA/Evilnum/proc_creation_win_apt_evilnum_jul20.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: EvilNum APT Golden Chickens Deployment Via OCX Files",
entity page, dataset version ref-fc7480a5bc7c, updated 2023-03-09T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/8acf3cfa-1e8c-4099-83de-a0c4038e18f0 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 8acf3cfa-1e8c-4099-83de-a0c4038e18f0, 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.