Detection rules › Sigma
Potential Ursnif Malware Activity - Registry
Detects registry keys related to Ursnif malware.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Persistence | |
| Defense Impairment |
Telemetry coverage
| Provider | Record / event type |
|---|---|
| Sysmon | Event ID 12: RegistryEvent (Object create and delete) |
Rule body
title: Potential Ursnif Malware Activity - Registry
id: 21f17060-b282-4249-ade0-589ea3591558
status: test
description: Detects registry keys related to Ursnif malware.
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/
author: megan201296
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
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
TargetObject|endswith: '\Software\AppDataLow\Software\Microsoft\3A861D62-51E0-7C9D-AB0E-15700F2219A4'
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
TargetObject | ends_with |
| field:"TargetObject" kind:ends_with value:"\Software\AppDataLow\Software\Microsoft\3A861D62-51E0-7C9D-AB0E-15700F2219A4" |