Ursnif-related Registry Key Creation Indicators on Windows

title: Ursnif-related Registry Key Creation Indicators on Windows
id: 4d3a7fc0-7f91-495c-9a64-a660f5447dba
status: test
description: This rule flags creation of a specific Windows Registry key path associated with Ursnif malware activity. Attackers may use this persistence or execution-related registry location to maintain control or stage further actions. Telemetry relies on registry add events that include the TargetObject field ending with the specified subkey path.
references:
  - https://blog.yoroi.company/research/ursnif-long-live-the-steganography/
  - https://blog.trendmicro.com/trendlabs-security-intelligence/phishing-campaign-uses-hijacked-emails-to-deliver-ursnif-by-replying-to-ongoing-threads/
  - https://github.com/SigmaHQ/sigma/blob/master/rules-emerging-threats/2019/Malware/Ursnif/registry_add_malware_ursnif.yml
author: megan201296, Huntrule Team
date: 2019-02-13
modified: 2025-10-22
tags:
  - attack.persistence
  - attack.execution
  - attack.defense-impairment
  - attack.t1112
  - detection.emerging-threats
logsource:
  product: windows
  category: registry_add
detection:
  selection:
    TargetObject|endswith: \Software\AppDataLow\Software\Microsoft\3A861D62-51E0-7C9D-AB0E-15700F2219A4
  condition: selection
falsepositives:
  - Unknown
level: high
license: DRL-1.1
related:
  - id: 21f17060-b282-4249-ade0-589ea3591558
    type: derived