Files signed by Dynabook Inc.;Microsoft Windows Hardware Compatibility Publisher

Dynabook Inc.;Microsoft Windows Hardware Compatibility Publisher

Dynabook Inc.;Microsoft Windows Hardware Compatibility Publisher is a digital signature publisher name observed in ThreatInfo records. This page groups 8 signed files and shows whether those files are currently classified as clean, undefined, or detected.

A digital signature can help identify a publisher, but it does not always prove that a file is safe. Certificates may be abused, stolen, expired, or attached to modified installers, so the file hash and detection status should be checked together.

DSDFunctionKeyCtlService.exe 327837ff81764c9b8ce154489fc8de1c Under review
TOSTABSYSSVC.exe f18bae1349c0f4464b92da0cee9cc78a Under review
RMService.exe 90135bc4b87d4d2f2859f2dda90b592b Under review
TosSrvCtlDrv.sys 1891d665a10632c790ffae42979262ef Under review
dynabookSystemService.exe d685fee9e6200dffec14659f8c934e2c Under review
TVALZ_O.SYS 63808e0c1e55c08acfb3873c6e3915bf Under review
dynabookSystemService.exe ef9bde39908714c3ad64925cd4e629fe Under review
drfec.sys 657d2a1e37b78c531739f52ba6093949 Under review

Certificate review summary

Use the file hashes to verify this signature

ThreatInfo groups the signed files above so you can compare exact hashes and detection labels. A signature name alone is not enough to decide whether a file is safe.

Recommended checks

  • Open any matching file report and compare the MD5 hash.
  • Confirm the file path and download source before trusting the binary.
  • Run a GridinSoft scan if the signed file appears unexpectedly.