GridinSoft Threat Intelligence

setdefbrowser.dll file report

Under review File reputation report
MD5 b663a2e3a1a1db714d168d4070505299
Latest seen 2021-01-04 14:06:18 (5 years ago)
First seen 2017-05-21 06:06:20 (9 years ago)
Size 305 KB
Publisher 360.cn
Product SetDef Dynamic Link Library
Signed by Qihoo 360 Software (Beijing) Company Limited

Why it matters

Evidence available for this file

Detection

No final classification is available yet.

Timeline

First seen 2017-05-21 06:06:20 (9 years ago); latest analysis 2021-01-04 14:06:18 (5 years ago).

Publisher context

Company metadata: 360.cn. Product metadata: SetDef Dynamic Link Library.

Digital signature

Signed by Qihoo 360 Software (Beijing) Company Limited. 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

setdefbrowser.dll is a Windows file recorded in the ThreatInfo database. It is associated with SetDef Dynamic Link Library. The reported company name is 360.cn. The current detection status is Undefined, based on the latest analysis from 2021-01-04 14:06:18 (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: SetDef Dynamic Link Library
Company Name: 360.cn
MD5: b663a2e3a1a1db714d168d4070505299
Size: 305 KB
First Published: 2017-05-21 06:06:20 (9 years ago)
Latest Published: 2021-01-04 14:06:18 (5 years ago)
Status: Undefined (on last analysis)
Analysis Date: 2021-01-04 14:06:18 (5 years ago)

Overview

Signed By: Qihoo 360 Software (Beijing) Company Limited
Status: Valid

The signature on setdefbrowser.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:

%appdata%\360se6\application\8.1.1.256
%appdata%\360se6\application\8.2.1.348
%localappdata%\360chrome\chrome\application\9.0.1.120
%appdata%\360se6\application\8.1.1.406
%appdata%\360se6\application\9.1.0.318
%appdata%\360se6\application\9.2.0.106
%appdata%\360se6\application\9.1.0.338
%appdata%\360se6\application\8.1.1.158
%appdata%\360se6\application\8.1.1.258
%appdata%\360se6\application\9.1.0.350

ThreatInfo has observed setdefbrowser.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 setdefbrowser.dll across 18 countries. Use this signal to compare local evidence with where the sample is most often reported.

Top country China
Share 37.9%
Low High activity

The strongest geographic signal for this file is China with 37.9% 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 60.9%
Windows 7 24.6%
Windows Server 2008 R2 5.9%
Windows Server 2012 R2 5.5%
Windows 8.1 1.6%
Windows Server 2003 0.8%
Windows XP 0.8%

The most common operating system signal for setdefbrowser.dll is Windows 10 with 60.9% 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

setdefbrowser.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 0x000206d9
Image base 0x10000000

PE Sections:

Sections 6
Raw data 294912

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

.text 230912 bytes · 78.3% of section data
MD5 5fd4bf00d1f17dd425005957e0be177e
.rdata 38400 bytes · 13.0% of section data
MD5 c541a5c7c227ee5a312557362b4cf289
.data 7680 bytes · 2.6% of section data
MD5 9f45ed2543bdbd8b1d4221baed350880
.tls 512 bytes · 0.2% of section data
MD5 bf619eac0cdf3f68d496ea9344137e8b
.rsrc 1536 bytes · 0.5% of section data
MD5 947ab54cb94046fede071686b5202f6a
.reloc 15872 bytes · 5.4% of section data
MD5 42a8a8d366b6f91d121108a565aad4f9

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 b663a2e3a1a1db714d168d4070505299.
  • 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.