GridinSoft Threat Intelligence

BavScan.dll file report

Under review File reputation report
MD5 45dabac81cf0d4a349ce126e64ffa153
Latest seen 2025-05-14 23:01:24 (a year ago)
First seen 2017-05-21 09:02:09 (9 years ago)
Size 337 KB
Publisher Baidu, Inc.
Product Baidu Antivirus
Signed by Baidu Online Network Technology (Beijing) Co.,Ltd.

Why it matters

Evidence available for this file

Detection

No final classification is available yet.

Timeline

First seen 2017-05-21 09:02:09 (9 years ago); latest analysis 2025-05-14 23:01:24 (a year ago).

Publisher context

Company metadata: Baidu, Inc.. Product metadata: Baidu Antivirus.

Digital signature

Signed by Baidu Online Network Technology (Beijing) Co.,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

BavScan.dll is a Windows file recorded in the ThreatInfo database. It is associated with Baidu Antivirus. The reported company name is Baidu, Inc.. The current detection status is Undefined, based on the latest analysis from 2025-05-14 23:01:24 (a year 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: Baidu Antivirus
Company Name: Baidu, Inc.
MD5: 45dabac81cf0d4a349ce126e64ffa153
Size: 337 KB
First Published: 2017-05-21 09:02:09 (9 years ago)
Latest Published: 2025-05-14 23:01:24 (a year ago)
Status: Undefined (on last analysis)
Analysis Date: 2025-05-14 23:01:24 (a year ago)

Overview

Signed By: Baidu Online Network Technology (Beijing) Co.,Ltd.
Status: Valid

The signature on BavScan.dll 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%\pc faster\5.1.0.0\cloud security
%programfiles%\pc faster\cloud security
%programfiles%\pc faster\update\cloud security
%programfiles%\pc faster\5.1.0.0
%programfiles%\pc faster

ThreatInfo has observed BavScan.dll 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 BavScan.dll across 75 countries. Use this signal to compare local evidence with where the sample is most often reported.

Top country Thailand
Share 19.2%
Low High activity

The strongest geographic signal for this file is Thailand with 19.2% of observed hits. Geographic distribution can help identify targeted campaigns, regional software bundles, or where a file is most commonly reported.

OS Version:

Windows 7 54.2%
Windows 10 32.6%
Windows 8.1 7.5%
Windows XP 2.3%
Windows 8 2.2%
Windows Vista 0.8%
Windows Embedded 8.1 0.4%

The most common operating system signal for BavScan.dll is Windows 7 with 54.2% 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

BavScan.dll is identified as pe for 32-bit systems. The subsystem is Windows GUI. PE header values are useful for triage, especially when they do not match the expected publisher, product, or release timeline.

Format pe
Architecture 32-bit
Subsystem Windows GUI
Entry point 0x0001db91
Image base 0x10000000

PE Sections:

Sections 5
Raw data 338944

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

.text 193536 bytes · 57.1% of section data
MD5 fb849a611ca796d1404df5a871071e67
.rdata 123904 bytes · 36.6% of section data
MD5 9f580f20975e03dc88f9dcbf669a7746
.data 6144 bytes · 1.8% of section data
MD5 c5a47a372bce41be2ca6865323f7fcad
.rsrc 1536 bytes · 0.5% of section data
MD5 2b75043c81673c8c5cd9819d913b822a
.reloc 13824 bytes · 4.1% of section data
MD5 a1c6283227588de7090109df0e8eb98e

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 45dabac81cf0d4a349ce126e64ffa153.
  • 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.