GridinSoft Threat Intelligence

btfilter.sys file report

Under review File reputation report
MD5 7f57a220e8e0ffe9cf487200ed832df3
Latest seen 2023-08-15 23:30:47 (2 years ago)
First seen 2020-02-03 04:20:23 (6 years ago)
Size 67 KB
Publisher Qualcomm
Product BT Driver
Signed by Qualcomm Atheros;Microsoft Windows Hardware Compatibility Publisher

Why it matters

Evidence available for this file

Detection

No final classification is available yet.

Timeline

First seen 2020-02-03 04:20:23 (6 years ago); latest analysis 2023-08-15 23:30:47 (2 years ago).

Publisher context

Company metadata: Qualcomm. Product metadata: BT Driver.

Digital signature

Signed by Qualcomm Atheros;Microsoft Windows Hardware Compatibility Publisher. 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

btfilter.sys is a Windows file recorded in the ThreatInfo database. It is associated with BT Driver. The reported company name is Qualcomm. The current detection status is Undefined, based on the latest analysis from 2023-08-15 23:30:47 (2 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: BT Driver
Company Name: Qualcomm
MD5: 7f57a220e8e0ffe9cf487200ed832df3
Size: 67 KB
First Published: 2020-02-03 04:20:23 (6 years ago)
Latest Published: 2023-08-15 23:30:47 (2 years ago)
Status: Undefined (on last analysis)
Analysis Date: 2023-08-15 23:30:47 (2 years ago)

Overview

Signed By: Qualcomm Atheros;Microsoft Windows Hardware Compatibility Publisher
Status: Valid

The signature on btfilter.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:

%localappdata%\slimware utilities inc\slimdrivers\backups\20190829t121438858431\usb
%localappdata%\slimware utilities inc\slimdrivers\backups\20200415t224459822554\usb
%localappdata%\slimware utilities inc\slimdrivers\backups\20191021t132222146486\usb

ThreatInfo has observed btfilter.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 btfilter.sys across 2 countries. Use this signal to compare local evidence with where the sample is most often reported.

Top country Brazil
Share 66.7%
Low High activity

The strongest geographic signal for this file is Brazil with 66.7% of observed hits. Geographic distribution can help identify targeted campaigns, regional software bundles, or where a file is most commonly reported.

OS Version:

Windows 10 100.0%

The most common operating system signal for btfilter.sys 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

btfilter.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 0x000105d4
Image base 0x0000000140000000

PE Sections:

Sections 9
Raw data 52736

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

.text 30720 bytes · 58.3% of section data
MD5 948cc5ca2a4283b4a9731f5e70231886
.rdata 3584 bytes · 6.8% of section data
MD5 4e68e4cbdb28615a147beb28c4943c0b
.data 512 bytes · 1.0% of section data
MD5 924316721384b04ee2c480c9687274bf
.pdata 1536 bytes · 2.9% of section data
MD5 9055a08b7ac6cdef71c20aa366051c9e
.gfids 512 bytes · 1.0% of section data
Uncommon name
MD5 64d1f04ee674327483852f238bb2c4a5
PAGE 9728 bytes · 18.4% of section data
Uncommon name
MD5 7ecc314a6ee0f062533f4c2bb8a54fdc
INIT 4608 bytes · 8.7% of section data
Uncommon name
MD5 28601bd41dd94e0fd3815688b702e9e9
.rsrc 1024 bytes · 1.9% of section data
MD5 87a38f1b112c9960c096b12f4d2053cb
.reloc 512 bytes · 1.0% of section data
MD5 f83706fcd78bb4e70db53821cb3c4be4

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 7f57a220e8e0ffe9cf487200ed832df3.
  • 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.