GridinSoft Threat Intelligence

AscFileFilter.sys file report

Under review File reputation report
MD5 b4130ac2376a0dd09eb1962852b77b69
Latest seen 2021-03-06 16:57:20 (5 years ago)
First seen 2021-02-19 16:44:45 (5 years ago)
Size 44 KB
Publisher IObit
Product Advanced SystemCare
Signed by IObit Information Technology;Microsoft Windows Hardware Compatibility Publisher

Why it matters

Evidence available for this file

Detection

No final classification is available yet.

Timeline

First seen 2021-02-19 16:44:45 (5 years ago); latest analysis 2021-03-06 16:57:20 (5 years ago).

Publisher context

Company metadata: IObit. Product metadata: Advanced SystemCare.

Digital signature

Signed by IObit Information Technology;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

AscFileFilter.sys is a Windows file recorded in the ThreatInfo database. It is associated with Advanced SystemCare. The reported company name is IObit. The current detection status is Undefined, based on the latest analysis from 2021-03-06 16:57:20 (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: Advanced SystemCare
Company Name: IObit
MD5: b4130ac2376a0dd09eb1962852b77b69
Size: 44 KB
First Published: 2021-02-19 16:44:45 (5 years ago)
Latest Published: 2021-03-06 16:57:20 (5 years ago)
Status: Undefined (on last analysis)
Analysis Date: 2021-03-06 16:57:20 (5 years ago)

Overview

Signed By: IObit Information Technology;Microsoft Windows Hardware Compatibility Publisher
Status: Valid

The signature on AscFileFilter.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:

%programfiles%\iobit\advanced systemcare ultimate\drivers

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

Top country France
Share 50.0%
Low High activity

The strongest geographic signal for this file is France 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 AscFileFilter.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

AscFileFilter.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 0x00008344
Image base 0x0000000000010000

PE Sections:

Sections 8
Raw data 18944

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

.text 8704 bytes · 45.9% of section data
MD5 f4c50010a481458fb6891e76da12bad9
.rdata 2560 bytes · 13.5% of section data
MD5 da6eebf84ed23d909ab5a0249f0ec3f1
.data 512 bytes · 2.7% of section data
MD5 043c46095689123e1f5be96c109c2f46
.pdata 512 bytes · 2.7% of section data
MD5 90b289c5f4fc37d57979fe8cc35a3c8b
PAGE 2560 bytes · 13.5% of section data
Uncommon name
MD5 43a666f17306d21dbc7b1b074859ed01
INIT 2560 bytes · 13.5% of section data
Uncommon name
MD5 0ffffba1e065bca7397e7521eb91296f
.rsrc 1024 bytes · 5.4% of section data
MD5 018f5a3e370ef7ddde6bdaa8bf308e48
.reloc 512 bytes · 2.7% of section data
MD5 70a7c2905c93ef2217ff996119f03f05

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 b4130ac2376a0dd09eb1962852b77b69.
  • 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.