GridinSoft Threat Intelligence
massfilter.sys file report
Why it matters
Evidence available for this file
No final classification is available yet.
First seen 2017-06-12 10:14:19 (8 years ago); latest analysis 2023-03-15 23:50:56 (3 years ago).
Company metadata: ZTE Incorporated. Product metadata: ZTE CDROM Filter.
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
massfilter.sys is a Windows file recorded in the ThreatInfo database. It is associated with ZTE CDROM Filter. The reported company name is ZTE Incorporated. The current detection status is Undefined, based on the latest analysis from 2023-03-15 23:50:56 (3 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: | ZTE CDROM Filter |
| Company Name: | ZTE Incorporated |
| MD5: | 23488767cb18fc3ff39e3af1db3fb02c |
| Size: | 11 KB |
| First Published: | 2017-06-12 10:14:19 (8 years ago) |
| Latest Published: | 2023-03-15 23:50:56 (3 years ago) |
| Status: | Undefined (on last analysis) | |
| Analysis Date: | 2023-03-15 23:50:56 (3 years ago) |
Common Places:
| %programfiles%\zte管理程式\drivers\64bit\vista |
| %programfiles%\zte管理程式\drivers\64bit\win7 |
| %programfiles%\zte_1.2059.0.8\drivers\64bit |
| %programfiles%\wnet\drivers\64bit |
| %programfiles%\ais\drivers\64bit |
ThreatInfo has observed massfilter.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 massfilter.sys across 7 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 Kingdom with 46.2% 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 massfilter.sys is Windows 10 with 53.8% 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
massfilter.sys is identified as pe for 64-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.
86b194278b2a840859953618fddf55da
09e7fa54a40d38d1a1d995638bdcca89
043c46095689123e1f5be96c109c2f46
4e56bb302bd065d260bbad6e35a0d1c1
266814252034919e6b52a4372804a8d9
6578ebc09cdf42208dd41fe9d294721c
5bc5f2000ff4725f7a7be4dbebb7bf51
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.