GridinSoft Threat Intelligence
FileExtensionManager-vc141-mt.dll file report
Why it matters
Evidence available for this file
No final classification is available yet.
First seen 2025-03-31 23:01:24 (a year ago); latest analysis 2025-09-03 23:02:56 (8 months ago).
Company metadata: Corel Corporation. Product metadata: WinZip Registry Optimizer.
Signed by Corel Corporation. The signature is reported as valid, but signed files can still be bundled or abused.
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
- Use the hash and metadata below to verify the exact file identity.
- Review publisher, signature, paths, and PE details for inconsistencies.
- Run a local scan if the file appears unexpectedly or starts with Windows.
File context
FileExtensionManager-vc141-mt.dll is a Windows file recorded in the ThreatInfo database. It is associated with WinZip Registry Optimizer. The reported company name is Corel Corporation. The current detection status is Undefined, based on the latest analysis from 2025-09-03 23:02:56 (8 months 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: | WinZip Registry Optimizer |
| Company Name: | Corel Corporation |
| MD5: | 67fff1126ece87949547df7f7289984f |
| Size: | 340 KB |
| First Published: | 2025-03-31 23:01:24 (a year ago) |
| Latest Published: | 2025-09-03 23:02:56 (8 months ago) |
| Status: | Undefined (on last analysis) | |
| Analysis Date: | 2025-09-03 23:02:56 (8 months ago) |
Overview
| Signed By: | Corel Corporation |
| Status: | Valid |
The signature on FileExtensionManager-vc141-mt.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% |
ThreatInfo has observed FileExtensionManager-vc141-mt.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.
Geographic signal
Observed country distribution
ThreatInfo has seen FileExtensionManager-vc141-mt.dll across 1 countries. Use this signal to compare local evidence with where the sample is most often reported.
The strongest geographic signal for this file is United States 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:
The most common operating system signal for FileExtensionManager-vc141-mt.dll 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
FileExtensionManager-vc141-mt.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.
PE Sections:
Section layout highlights raw-size concentration, repeated names, packer markers, and hashes that can be compared across related samples.
dd6889b061ad14f77cf3eeeb6526d27e
f0c6406f7aaf8a4a8f020416539d8c48
5d149eb7d3f25ed7dc2ced78fd7d7b45
86f026ceeafd53bfc13fbd7caaec072d
bb60986132e64b41ea85eb8b16aacac1
3f0cc0ae9bcee2026934508b86341c79
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.