GridinSoft Threat Intelligence
OSExtensions.dll threat report
GridinSoft Anti-Malware detection
Detected by GridinSoft before you download
The current ThreatInfo record shows this exact file hash detected as PUP.MyCleanPC. Download GridinSoft Anti-Malware to scan the device, confirm whether this file is present, and remove the detected object if it is found.
- Detection name
- PUP.MyCleanPC
- Recommended action
- Scan and remove
- Last analysis
- 2025-06-16 23:01:14 (11 months ago)
- File hash
- b9e074a1498c5548c000b7234b77e7c3
Why it matters
Why GridinSoft flags this file
GridinSoft identifies the sample as PUP.MyCleanPC.
First seen 2023-06-18 23:10:19 (2 years ago); latest analysis 2025-06-16 23:01:14 (11 months ago).
Company metadata: Microsoft. Product metadata: OSExtensions.
Signed by Microsoft Corporation;RealDefense LLC. 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
- Compare the MD5 above with the file found on the device.
- Check whether the file appears in the observed locations or under one of the alternate names.
- Run GridinSoft Anti-Malware to confirm the detection and remove the file if it is present.
File context
OSExtensions.dll is a Windows file recorded in the ThreatInfo database. It is associated with OSExtensions. The reported company name is Microsoft. The current detection status is PUP.MyCleanPC, based on the latest analysis from 2025-06-16 23:01:14 (11 months ago).
If OSExtensions.dll appears on your computer unexpectedly, treat it as suspicious. Check its location, digital signature, and recent system changes before allowing it to run. A full anti-malware scan is recommended when this file is detected as PUP.MyCleanPC.
File Details
| Product Name: | OSExtensions |
| Company Name: | Microsoft |
| MD5: | b9e074a1498c5548c000b7234b77e7c3 |
| Size: | 42 KB |
| First Published: | 2023-06-18 23:10:19 (2 years ago) |
| Latest Published: | 2025-06-16 23:01:14 (11 months ago) |
| Status: | PUP.MyCleanPC (on last analysis) | |
| Analysis Date: | 2025-06-16 23:01:14 (11 months ago) |
Detection screenshot
The screenshot is a visual record of a GridinSoft Anti-Malware detection for this sample. Use the hash and metadata above as the primary identifiers when comparing the file on your system.
Overview
| Signed By: | Microsoft Corporation;RealDefense LLC |
| Status: | Valid |
The signature on OSExtensions.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%\mcafee |
ThreatInfo has observed OSExtensions.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 OSExtensions.dll across 3 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 75.0% 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 OSExtensions.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
OSExtensions.dll is identified as pe for 32-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.
.NET Info:
| MVID: | d89bf804-97f2-43d9-a887-142e67c3c69d |
PE Sections:
Section layout highlights raw-size concentration, repeated names, packer markers, and hashes that can be compared across related samples.
bf62021ffa34a9f5ae11a5af38abd3d3
4552883da6071c6eb73bef86b05713dd
004e57454fa8a87c5f63fe331ac62e67
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
GridinSoft detects this file as PUP.MyCleanPC
This report identifies OSExtensions.dll by MD5 b9e074a1498c5548c000b7234b77e7c3. If the same file is present on your device, scan the system and remove the detected object after confirming the hash and location.