GridinSoft Threat Intelligence

nskbfltr.sys file report

Under review File reputation report
MD5 1c2143adeab91d77eb5a9624bd28b283
Latest seen 2026-04-28 23:01:22 (a month ago)
First seen 2020-01-24 03:24:01 (6 years ago)
Size 32 KB
Publisher NetSupport Ltd
Product NetSupport Manager
Signed by NetSupport Ltd

Why it matters

Evidence available for this file

Detection

No final classification is available yet.

Category context

Riskware and dual-use utilities that may be legitimate but require careful review. Related Risk reports help compare this file with nearby detections, publishers, and hashes.

Timeline

First seen 2020-01-24 03:24:01 (6 years ago); latest analysis 2026-04-28 23:01:22 (a month ago).

Publisher context

Company metadata: NetSupport Ltd. Product metadata: NetSupport Manager.

Digital signature

Signed by NetSupport Ltd. The signature is reported as valid, but signed files can still be bundled or abused.

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

nskbfltr.sys is a Windows file recorded in the ThreatInfo database. It is associated with NetSupport Manager. The reported company name is NetSupport Ltd. The current detection status is Undefined, based on the latest analysis from 2026-04-28 23:01:22 (a month ago). ThreatInfo groups this verdict with Risk reports for broader family-level investigation.

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: NetSupport Manager
Company Name: NetSupport Ltd
MD5: 1c2143adeab91d77eb5a9624bd28b283
Size: 32 KB
First Published: 2020-01-24 03:24:01 (6 years ago)
Latest Published: 2026-04-28 23:01:22 (a month ago)
Status: Undefined (on last analysis)
Analysis Date: 2026-04-28 23:01:22 (a month ago)

Overview

Signed By: NetSupport Ltd
Status: Valid

The signature on nskbfltr.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:

%system%
%programfiles%\acer
%programfiles%\netsupport

ThreatInfo has observed nskbfltr.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 nskbfltr.sys across 5 countries. Use this signal to compare local evidence with where the sample is most often reported.

Top country Vietnam
Share 50.0%
Low High activity

The strongest geographic signal for this file is Vietnam with 50.0% 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 91.7%
Windows 7 8.3%

The most common operating system signal for nskbfltr.sys is Windows 10 with 91.7% 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

nskbfltr.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 0x0000281c
Image base 0x0000000000010000

PE Sections:

Sections 8
Raw data 24576

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

.text 15872 bytes · 64.6% of section data
MD5 b8db9ba715ddfca0d2eee89e9a8df427
.rdata 2048 bytes · 8.3% of section data
MD5 733357ebadfa4d5232ff70d34bb90df5
.data 1024 bytes · 4.2% of section data
MD5 99d69378960525a4f1f606250527a40d
.pdata 1024 bytes · 4.2% of section data
MD5 feda2a912465bbdf1015e1880e61ba08
PAGE 1536 bytes · 6.3% of section data
Uncommon name
MD5 6b34c7bf2468512a2c064cfb820f3fc9
INIT 1536 bytes · 6.3% of section data
Uncommon name
MD5 f48bf8fae4e30714e4bf6eb6d5f09ee9
.rsrc 1024 bytes · 4.2% of section data
MD5 bad74ccd0da5aa66ed92ab27531a176f
.reloc 512 bytes · 2.1% of section data
MD5 4641ad8d8114136861c091de2d28ae3e

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 1c2143adeab91d77eb5a9624bd28b283.
  • 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. Use the Risk category to compare similar reports.