Windows IOBit Unlocker Extension DLL Registration via Regsvr32
Detects the IOBit Unlocker Extension being registered. IObit Unlocker is a utility designed to resolve issues involving files or folders that cannot be deleted, moved, or renamed due to being locked by other…
Description
Detects the IOBit Unlocker Extension being registered. IObit Unlocker is a utility designed to resolve issues involving files or folders that cannot be deleted, moved, or renamed due to being locked by other processes or applications in Windows. It's a powerful tool that can "unlock" these files or folders, terminating any processes that are using them. This allows users to manipulate these previously inaccessible files or folders as needed.
Detection logic
Detection requirements
- Platform
- Windows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
- Log source category
- crowdstrike_processrollup2sysmon_eventid_1windows_event_log_security_4688
Known benign triggers
- Some legitimate users may run IObit Unlocker to manage locked files for maintenance or troubleshooting. Filter detections for approved use to reduce false alerts.
MITRE ATT&CK mappings
0 exclusive techniques.This is coverage no other published rule has; it is not this rule's total technique count.
References
| Reference | Cited by |
|---|---|
| thedfirreport.com/2024/04/01/from-onenote-to-ransomnote-an-ice-cold-intrusion/ | 2from 2 sources |
From the source
- At source
- Open at source
- Upstream identifier
- 2ba4b456-76e2-439d-bca6-fd5ef24cc53b
- Tagged by the source as
- Compromised Windows HostEndpointendpointSplunk CloudSplunk EnterpriseSplunk Enterprise Securityendpoint
Licence
- Published under
- Apache License 2.0Read the licence
- Attribution
- Required
- Obtained under
- Apache-2.0Read the origin licence
Authorship
- Written by
- Published
- Aug 26, 2026
- Version
- 1