GridinSoft Threat Intelligence
QMUDisk_ev.sys file report
Why it matters
Evidence available for this file
No final classification is available yet.
First seen 2019-05-30 04:02:12 (6 years ago); latest analysis 2021-09-21 20:31:07 (4 years ago).
Signed by Tencent Technology(Shenzhen) Company Limited;Microsoft Windows Hardware Compatibility Publisher. 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
QMUDisk_ev.sys is a Windows file recorded in the ThreatInfo database. It is associated with 电脑管家. The reported company name is Tencent. The current detection status is Undefined, based on the latest analysis from 2021-09-21 20:31:07 (4 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: | 电脑管家 |
| Company Name: | Tencent |
| MD5: | a017e93652201da2061142be870c755d |
| Size: | 153 KB |
| First Published: | 2019-05-30 04:02:12 (6 years ago) |
| Latest Published: | 2021-09-21 20:31:07 (4 years ago) |
| Status: | Undefined (on last analysis) | |
| Analysis Date: | 2021-09-21 20:31:07 (4 years ago) |
Overview
| Signed By: | Tencent Technology(Shenzhen) Company Limited;Microsoft Windows Hardware Compatibility Publisher |
| Status: | Valid |
The signature on QMUDisk_ev.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:
| %programfiles%\tencent\qqpcmgr |
| %programfiles%\tencent\qqpcmgr\12.6.18848.203\filegroupupdate\sections |
ThreatInfo has observed QMUDisk_ev.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 QMUDisk_ev.sys across 12 countries. Use this signal to compare local evidence with where the sample is most often reported.
The strongest geographic signal for this file is China with 25.7% 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 QMUDisk_ev.sys is Windows 10 with 88.6% 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
QMUDisk_ev.sys is identified as pe for 32-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.
PE Sections:
Section layout highlights raw-size concentration, repeated names, packer markers, and hashes that can be compared across related samples.
eea5525ba1f1353a6ab150d82bcc12a8
b5df0c9a45de3a8f595d307b096942fc
716165b5fa4272aabc9c4a4e82a2ef14
3210c79b1eac4c708ab063a20c2d99f3
d6fab85c11b5dc94b60044a6b31d6105
85bed019cbf344ba873fc32752db4ba2
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.