GridinSoft Threat Intelligence

TosSrvCtlDrv.sys file report

Under review File reputation report
MD5 1891d665a10632c790ffae42979262ef
Latest seen 2021-02-16 04:54:21 (5 years ago)
First seen 2021-02-15 04:35:43 (5 years ago)
Size 25 KB
Publisher Dynabook Inc.
Product dynabook Service Control Driver
Signed by Dynabook Inc.;Microsoft Windows Hardware Compatibility Publisher

Why it matters

Evidence available for this file

Detection

No final classification is available yet.

Timeline

First seen 2021-02-15 04:35:43 (5 years ago); latest analysis 2021-02-16 04:54:21 (5 years ago).

Publisher context

Company metadata: Dynabook Inc.. Product metadata: dynabook Service Control Driver.

Digital signature

Signed by Dynabook Inc.;Microsoft Windows Hardware Compatibility Publisher. The signature is reported as valid, but signed files can still be bundled or abused.

Observed locations

ThreatInfo has seen this file in user or system paths listed below. Unexpected locations increase the need for local verification.

Recommended action

What to do next

  1. Use the hash and metadata below to verify the exact file identity.
  2. Review publisher, signature, paths, and PE details for inconsistencies.
  3. Run a local scan if the file appears unexpectedly or starts with Windows.

File context

TosSrvCtlDrv.sys is a Windows file recorded in the ThreatInfo database. It is associated with dynabook Service Control Driver. The reported company name is Dynabook Inc.. The current detection status is Undefined, based on the latest analysis from 2021-02-16 04:54:21 (5 years ago).

ThreatInfo does not have a final classification for this file yet. Use the technical details below to compare the hash, size, signature, and observed locations with the copy found on your device.

File Details

Product Name: dynabook Service Control Driver
Company Name: Dynabook Inc.
MD5: 1891d665a10632c790ffae42979262ef
Size: 25 KB
First Published: 2021-02-15 04:35:43 (5 years ago)
Latest Published: 2021-02-16 04:54:21 (5 years ago)
Status: Undefined (on last analysis)
Analysis Date: 2021-02-16 04:54:21 (5 years ago)

Overview

Signed By: Dynabook Inc.;Microsoft Windows Hardware Compatibility Publisher
Status: Valid

The signature on TosSrvCtlDrv.sys is reported as valid. A valid signature helps confirm publisher identity, but it does not automatically make the file safe if the installer was bundled, abused, or downloaded from an untrusted source.

Common Places:

%commonappdata%\reviversoft\driver reviver\downloads\96
%commonappdata%\reviversoft\driver reviver\downloads\d21e34f4-8286-480d-8cf9-f11bca0d3b10

ThreatInfo has observed TosSrvCtlDrv.sys in the locations listed above. Files found in temporary folders, user profile folders, startup locations, or unusual application directories should be reviewed more carefully than files installed under a known program directory.

Geographic signal

Observed country distribution

ThreatInfo has seen TosSrvCtlDrv.sys across 1 countries. Use this signal to compare local evidence with where the sample is most often reported.

Top country Japan
Share 100.0%
Low High activity

The strongest geographic signal for this file is Japan with 100.0% of observed hits. Geographic distribution can help identify targeted campaigns, regional software bundles, or where a file is most commonly reported.

OS Version:

Windows 10 100.0%

The most common operating system signal for TosSrvCtlDrv.sys is Windows 10 with 100.0% of observed hits. If your system differs from the common profile, check whether the file was introduced by a specific installer, archive, or removable device.

Analysis

TosSrvCtlDrv.sys is identified as pe for 64-bit systems. The subsystem is Native. PE header values are useful for triage, especially when they do not match the expected publisher, product, or release timeline.

Format pe
Architecture 64-bit
Subsystem Native
Entry point 0x00001430
Image base 0x0000000140000000

PE Sections:

Sections 8
Raw data 7680

Section layout highlights raw-size concentration, repeated names, packer markers, and hashes that can be compared across related samples.

.text 2048 bytes · 26.7% of section data
MD5 7fd62dcf013a6002aa5a4a9c0b6bbe81
.rdata 1536 bytes · 20.0% of section data
MD5 d2e9cdacb64660abcec18a8f6b6d5767
.data 512 bytes · 6.7% of section data
MD5 a00fdbdc0169bd1b34f5506725f0620d
.pdata 512 bytes · 6.7% of section data
MD5 1a99893b0e8cfe08ba072b2d6a22b5af
PAGE 1024 bytes · 13.3% of section data
Uncommon name
MD5 73209f5edee6bc1fe7de9527a6ceba6e
INIT 512 bytes · 6.7% of section data
Uncommon name
MD5 f8b5ae026a5b0010b2b571e5d6cc8582
.rsrc 1024 bytes · 13.3% of section data
MD5 df2947cdf30fd994ef132ad1597b36ff
.reloc 512 bytes · 6.7% of section data
MD5 e4a330927c0cdf604021a0ae3e633e7f

PE section names and hashes can reveal packing, injected resources, or unusual build artifacts. Sections with uncommon names, very large raw data, or hashes that differ from a trusted copy deserve additional review.

Report conclusion

This file is still under review

ThreatInfo has not assigned a final verdict yet. Compare the file hash, location, signature, and publisher before trusting the file on a production system.

Scan with GridinSoft Anti-Malware Use a local scan if the file origin or behavior is unclear. Check this hash on VirusTotal

Recommended next steps

  • Compare the local file MD5 with 1891d665a10632c790ffae42979262ef.
  • Check the file path, publisher, and signature against the details in this report.
  • Run a GridinSoft scan if the source, path, or behavior looks unusual.