GridinSoft Threat Intelligence

RtsUer.sys file report

Under review File reputation report
MD5 d40f62570187aca228aca33a641e3395
Latest seen 2021-01-15 07:19:13 (5 years ago)
First seen 2021-01-15 07:15:16 (5 years ago)
Size 439 KB
Publisher Realsil Semiconductor Corporation
Product Windows (R) Win 7 DDK driver
Signed by Realtek Semiconductor Corp.;Microsoft Windows Hardware Compatibility Publisher

Why it matters

Evidence available for this file

Detection

No final classification is available yet.

Timeline

First seen 2021-01-15 07:15:16 (5 years ago); latest analysis 2021-01-15 07:19:13 (5 years ago).

Publisher context

Company metadata: Realsil Semiconductor Corporation. Product metadata: Windows (R) Win 7 DDK driver.

Digital signature

Signed by Realtek Semiconductor Corp.;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

RtsUer.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 Realsil Semiconductor Corporation. The current detection status is Undefined, based on the latest analysis from 2021-01-15 07:19:13 (5 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: Realsil Semiconductor Corporation
MD5: d40f62570187aca228aca33a641e3395
Size: 439 KB
First Published: 2021-01-15 07:15:16 (5 years ago)
Latest Published: 2021-01-15 07:19:13 (5 years ago)
Status: Undefined (on last analysis)
Analysis Date: 2021-01-15 07:19:13 (5 years ago)

Overview

Signed By: Realtek Semiconductor Corp.;Microsoft Windows Hardware Compatibility Publisher
Status: Valid

The signature on RtsUer.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\20201007t201927260947\usb
%localappdata%\slimware utilities inc\slimdrivers\backups\20201007t210044105988\usb

ThreatInfo has observed RtsUer.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 RtsUer.sys across 1 countries. Use this signal to compare local evidence with where the sample is most often reported.

Top country Spain
Share 100.0%
Low High activity

The strongest geographic signal for this file is Spain with 100.0% 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 RtsUer.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

RtsUer.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 0x00066000
Image base 0x0000000140000000

PE Sections:

Sections 8
Raw data 413184

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

.text 379392 bytes · 91.8% of section data
MD5 89fb693a33ee52dc66f24db943bb6f04
.rdata 16384 bytes · 4.0% of section data
MD5 efb226d24e400984f3e9582cad300d0e
.data 3584 bytes · 0.9% of section data
MD5 49dc5142e347f01a99cd46350aeabf65
.pdata 7680 bytes · 1.9% of section data
MD5 40dbc175cb0cd7d742ec49312cf828c5
PAGE 512 bytes · 0.1% of section data
Uncommon name
MD5 cb3f621d83e6a5334c605d5247da233f
INIT 3072 bytes · 0.7% of section data
Uncommon name
MD5 7022ba4062ea3b2bea7ed6c32fbec6f0
.rsrc 1536 bytes · 0.4% of section data
MD5 452087240c6700f3d699be21c55a0345
.reloc 1024 bytes · 0.2% of section data
MD5 66a7f2199ae0e6bee595358d351f8c16

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 d40f62570187aca228aca33a641e3395.
  • 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.