GridinSoft Threat Intelligence

massfilter.sys file report

Under review File reputation report
MD5 0db809c1fb01af4cfc67410cf88e7e23
Latest seen 2023-03-15 23:52:17 (3 years ago)
First seen 2017-06-12 10:14:20 (8 years ago)
Size 11 KB
Publisher ZTE Incorporated
Product ZTE CDROM Filter

Why it matters

Evidence available for this file

Detection

No final classification is available yet.

Timeline

First seen 2017-06-12 10:14:20 (8 years ago); latest analysis 2023-03-15 23:52:17 (3 years ago).

Publisher context

Company metadata: ZTE Incorporated. Product metadata: ZTE CDROM Filter.

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.

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 23:52:17 (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: 0db809c1fb01af4cfc67410cf88e7e23
Size: 11 KB
First Published: 2017-06-12 10:14:20 (8 years ago)
Latest Published: 2023-03-15 23:52:17 (3 years ago)
Status: Undefined (on last analysis)
Analysis Date: 2023-03-15 23:52:17 (3 years ago)

Common Places:

%programfiles%\zte管理程式\drivers\64bit\wnet
%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.

Top country United Kingdom
Share 46.2%
Low High activity

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:

Windows 10 53.8%
Windows 7 38.5%
Windows XP 7.7%

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.

Format pe
Architecture 64-bit
Subsystem Native
Entry point 0x00006094
Image base 0x0000000000010000

PE Sections:

Sections 7
Raw data 10752

Section layout highlights raw-size concentration, repeated names, packer markers, and hashes that can be compared across related samples.

.text 3584 bytes · 33.3% of section data
MD5 ebcb34cb88413e06bc19d906e76b4c70
.rdata 1024 bytes · 9.5% of section data
MD5 0f1f7515c17c0eb6e00399ded89f3a90
.data 512 bytes · 4.8% of section data
MD5 043c46095689123e1f5be96c109c2f46
.pdata 512 bytes · 4.8% of section data
MD5 4e56bb302bd065d260bbad6e35a0d1c1
PAGE 2560 bytes · 23.8% of section data
Uncommon name
MD5 7e731e5ada91bf49b7fce1533d24a3f4
INIT 1536 bytes · 14.3% of section data
Uncommon name
MD5 741e11267dcc3b0ae05eec4c1dc71661
.rsrc 1024 bytes · 9.5% of section data
MD5 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.

Scan with GridinSoft Anti-Malware Use a local scan if the file origin or behavior is unclear. Check this hash on VirusTotal

Recommended next steps

  • Compare the local file MD5 with 0db809c1fb01af4cfc67410cf88e7e23.
  • Check the file path, publisher, and signature against the details in this report.
  • Run a GridinSoft scan if the source, path, or behavior looks unusual.