Microsoft.mshtml.dll file report

MD5 df1456d5a3068e7396703058a4f37cdf
Latest seen 2025-05-11 23:01:12 (a year ago)
First seen 2021-10-02 20:24:50 (4 years ago)
Size 7 MB
Publisher

Why it matters

Evidence available for this file

Detection

No final classification is available yet.

Timeline

First seen 2021-10-02 20:24:50 (4 years ago); latest analysis 2025-05-11 23:01:12 (a year ago).

Publisher context

Company metadata: . Product metadata: Assembly imported from type library MSHTML.

Digital signature

Signed by Lavasoft Software Canada Inc.. 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.

Microsoft.mshtml.dll is a Windows file recorded in the ThreatInfo database. It is associated with Assembly imported from type library MSHTML. The reported company name is . The current detection status is Undefined, based on the latest analysis from 2025-05-11 23:01:12 (a year 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.

Product Name: Assembly imported from type library MSHTML
Company Name:
MD5: df1456d5a3068e7396703058a4f37cdf
Size: 7 MB
First Published: 2021-10-02 20:24:50 (4 years ago)
Latest Published: 2025-05-11 23:01:12 (a year ago)
Status: Undefined (on last analysis)
Analysis Date: 2025-05-11 23:01:12 (a year ago)
Signed By: Lavasoft Software Canada Inc.
Status: Valid

The signature on Microsoft.mshtml.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.

%programfiles%\lavasoft\web companion
%programfiles%\lavasoft\web companion
%programfiles%\lavasoft\web companion
%programfiles%\lavasoft\web companion
%programfiles%\lavasoft\web companion
%programfiles%\lavasoft\web companion
%programfiles%\lavasoft\web companion
%programfiles%\lavasoft\web companion
%programfiles%\lavasoft\web companion
%programfiles%\lavasoft\web companion

ThreatInfo has observed Microsoft.mshtml.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.

8.3%
8.3%
6.3%
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4.2%
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2.1%
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2.1%
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2.1%
2.1%
2.1%
2.1%
2.1%
2.1%
2.1%
2.1%
2.1%
2.1%
2.1%
2.1%
2.1%

The strongest geographic signal for this file is Spain with 8.3% of observed hits. Geographic distribution can help identify targeted campaigns, regional software bundles, or where a file is most commonly reported.

Windows 10 85.7%
Windows 7 14.3%

The most common operating system signal for Microsoft.mshtml.dll is Windows 10 with 85.7% 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.

Microsoft.mshtml.dll is identified as pe for 32 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.

Subsystem: Windows CUI
PE Type: pe
OS Bitness: 32
Image Base: 0x40c90000
Entry Address: 0x007a162e

PE Sections:

Name Size of data MD5
.text 7995392 c49154c15fc881744e24c326aadd5212
.rsrc 4096 4701f17272e3de5403718fb718a7932f
.reloc 4096 627e38502cc4b8bf317508516863697e

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.

More information: