Windows Modify Registry WuServer
The following analytic detects suspicious modifications to the Windows Update Server (WUServer) registry settings. It leverages data from the Endpoint.Registry data model to identify changes in the registry path…
Description
The following analytic detects suspicious modifications to the Windows Update Server (WUServer) registry settings. It leverages data from the Endpoint.Registry data model to identify changes in the registry path associated with Windows Update configurations. This activity is significant because adversaries, including malware like RedLine Stealer, exploit this technique to bypass detection and deploy additional payloads. If confirmed malicious, this registry modification could allow attackers to evade defenses, potentially leading to further system compromise and persistent unauthorized access.
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
- sysmon_eventid_13
Known benign triggers
- Administrators may enable or disable this feature that may cause some false positive.
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 |
|---|---|
| learn.microsoft.com/de-de/security-updates/windowsupdateservices/18127499 | 9 |
From the source
- At source
- Open at source
- Upstream identifier
- a02ad386-e26d-44ce-aa97-6a46cee31439
- Tagged by the source as
- RedLine StealerEndpointendpointSplunk 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