GridinSoft Threat Intelligence

WdfCoInstaller0100964.dll file report

Clean record File reputation report
MD5 4da5da193e0e4f86f6f8fd43ef25329a
Latest seen 2025-09-03 23:04:58 (8 months ago)
First seen 2017-05-21 06:07:30 (8 years ago)
Size 1 MB
Publisher Microsoft Corporation
Product Microsoft® Windows® Operating System
Signed by Microsoft Windows Component Publisher

Why it matters

Evidence available for this file

Detection

Latest status is clean for this hash.

Timeline

First seen 2017-05-21 06:07:30 (8 years ago); latest analysis 2025-09-03 23:04:58 (8 months ago).

Publisher context

Company metadata: Microsoft Corporation. Product metadata: Microsoft® Windows® Operating System.

Digital signature

Signed by Microsoft Windows Component Publisher. The signature is reported as valid, but signed files can still be bundled or abused.

Aliases

This hash has appeared under multiple file names, which can happen with repackaging, bundling, or deliberate renaming.

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. Confirm the hash and publisher match the expected software.
  2. Review the observed locations and signature information below.
  3. Rescan if the file was downloaded from an unknown source or appears in an unusual path.

File context

WdfCoInstaller0100964.dll is a Windows file recorded in the ThreatInfo database. It is associated with Microsoft® Windows® Operating System. The reported company name is Microsoft Corporation. The current detection status is Clean, based on the latest analysis from 2025-09-03 23:04:58 (8 months ago).

This record is currently marked as clean, but file reputation can depend on the exact path, hash, and source. Compare the MD5 and publisher data below with the file on your system.

File Details

Product Name: Microsoft® Windows® Operating System
Company Name: Microsoft Corporation
MD5: 4da5da193e0e4f86f6f8fd43ef25329a
Size: 1 MB
First Published: 2017-05-21 06:07:30 (8 years ago)
Latest Published: 2025-09-03 23:04:58 (8 months ago)
Status: Clean (on last analysis)
Analysis Date: 2025-09-03 23:04:58 (8 months ago)

Overview

Signed By: Microsoft Windows Component Publisher
Status: Valid

The signature on WdfCoInstaller0100964.dll 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:

%programfiles%\drivertoolkit\download\36818b92af3cfdb8d4a9f29af4000156
%commonappdata%\reviversoft\pc reviver\s-1-5-21-2789247266-472311005-145265597-1000\driver updater\downloads\22\13b38edc-6c72-40a2-85e4-830980c5bffb\x64
%appdata%\mobogenie\driver\driverfolder\androidcommon_64\amd64
%programfiles%\wiselinktool\drivers\adb_usb_driver_v2.0\amd64
%programfiles%\wiselinktool\drivers\sp_drivers_exe_v1.6\amd64
%programfiles%\wiselinktool\drivers\driver_auto_installer_exe_v1.1352.00\smartphonedriver\x64\unsigned infs\amd64
%programfiles%\drivertoolkit\download\4e9f474c385ab1865866cb5cada69171\amd64
%programfiles%\drivertoolkit\download\f49e11e68267cff30232cdc293b9fd32\touch\amd64
%programfiles%\tabletdriver\driver\tabletdriver\amd64
%programfiles%\tabletdriver\driver\huionhid\amd64

ThreatInfo has observed WdfCoInstaller0100964.dll 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.

File Names:

3 observed names
WdfCoInstaller01009.dll WdfCx64F.dll WdfCoInstaller0100964.dll

This hash has been seen with multiple file names. Alternate names can appear when software is updated, copied between folders, packed by an installer, or deliberately renamed to avoid recognition. Compare the exact MD5 above before assuming two names refer to the same file.

Geographic signal

Observed country distribution

ThreatInfo has seen WdfCoInstaller0100964.dll across 94 countries. Use this signal to compare local evidence with where the sample is most often reported.

Top country Russian Federation
Share 10.8%
Low High activity

The strongest geographic signal for this file is Russian Federation with 10.8% 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 43.4%
Windows 7 42.6%
Windows 8.1 10.5%
Windows 8 2.5%
Windows XP 0.5%
Windows Embedded 8.1 0.2%
Windows Server 2008 R2 0.2%
Windows Server 2012 R2 0.1%

The most common operating system signal for WdfCoInstaller0100964.dll is Windows 10 with 43.4% 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

WdfCoInstaller0100964.dll is identified as pe for 64-bit systems. The subsystem is Windows CUI. 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 Windows CUI
Entry point 0x0000eab4
Image base 0x0000000002000000

PE Sections:

Sections 5
Raw data 1714176

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

.text 63488 bytes · 3.7% of section data
MD5 f0a019b68606971888ae475c950c0de9
.data 1536 bytes · 0.1% of section data
MD5 c3e535d9cabfd994ab3b311578a19d26
.pdata 1536 bytes · 0.1% of section data
MD5 67b09b70d83d398379cc05d229087114
.rsrc 1647104 bytes · 96.1% of section data
MD5 40cb7e099cbc8c79f90545343f9d1b54
.reloc 512 bytes · 0.0% of section data
MD5 6b3ab2211d8e36e9addbbcbed4395638

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 hash is currently recorded as clean

Use the MD5, publisher, signature, and observed paths in this report to verify that the file on your device is the same copy described here.

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 4da5da193e0e4f86f6f8fd43ef25329a.
  • 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.