Providing security features in write filter environments
US11113393B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 2019 |
| Grant date | Sep 7, 2021 |
| Priority date | — |
| Expiry date | Apr 9, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/034
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A security client can provide security features in write filter environments. To prevent improper modifications to a protected volume, the security client can be employed to differentiate between direct I/O requests and reparsed I/O requests that are directed to a shadow volume and to block any direct I/O requests. Alternatively or additionally, the security client can be configured to determine whether an I/O request that is directed to the shadow volume targets an artifact in the write filter's exclusion list, and if not, block the I/O request. Alternatively or additionally, the security client can be configured to monitor registry operations to determine whether a modifying registry operation targets the write filter's persistent shadow registry hive, and if so, allow the modifying registry operation only if it targets a registry key in the write filter's exclusion list.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.