GridinSoft Threat Intelligence

btfilter.sys file report

Under review File reputation report
MD5 7037b585f7d4ab58f1cfb1e7841e6fef
Latest seen 2023-08-15 23:46:29 (2 years ago)
First seen 2021-09-29 20:48:50 (4 years ago)
Size 604 KB
Publisher Qualcomm Atheros
Product Windows (R) Win 7 DDK 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 2021-09-29 20:48:50 (4 years ago); latest analysis 2023-08-15 23:46:29 (2 years ago).

Publisher context

Company metadata: Qualcomm Atheros. Product metadata: Windows (R) Win 7 DDK 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 Windows (R) Win 7 DDK driver. The reported company name is Qualcomm Atheros. The current detection status is Undefined, based on the latest analysis from 2023-08-15 23:46:29 (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: Windows (R) Win 7 DDK driver
Company Name: Qualcomm Atheros
MD5: 7037b585f7d4ab58f1cfb1e7841e6fef
Size: 604 KB
First Published: 2021-09-29 20:48:50 (4 years ago)
Latest Published: 2023-08-15 23:46:29 (2 years ago)
Status: Undefined (on last analysis)
Analysis Date: 2023-08-15 23:46:29 (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\20170116t020338479990\usb
%localappdata%\slimware utilities inc\slimdrivers\backups\20190729t180440256544\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 50.0%
Low High activity

The strongest geographic signal for this file is Brazil 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 10 100.0%

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 0x000a5064
Image base 0x0000000000010000

PE Sections:

Sections 8
Raw data 592384

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

.text 542208 bytes · 91.5% of section data
MD5 8422fbf9d678eed581d6cdec4efc521b
.rdata 16896 bytes · 2.9% of section data
MD5 00eb269a0df500c10ff8b81bc6d657a9
.data 6656 bytes · 1.1% of section data
MD5 fab3a0296ad9883d3fe2a5b34bf1a292
.pdata 13312 bytes · 2.2% of section data
MD5 f3e7e5dc91657424259057fcae2b0528
PAGE 5632 bytes · 1.0% of section data
Uncommon name
MD5 641bdb6c06f97c53530a945234d3a0cd
INIT 3584 bytes · 0.6% of section data
Uncommon name
MD5 d64192f58783f6a63a85bc448c96e28a
.rsrc 2048 bytes · 0.3% of section data
MD5 54fa4504a96afd29b627468ea02dbcf2
.reloc 2048 bytes · 0.3% of section data
MD5 9133b25c442501349f2b8fe2a1c3e96f

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 7037b585f7d4ab58f1cfb1e7841e6fef.
  • 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.