GridinSoft Threat Intelligence

chrome_watcher.dll file report

Under review File reputation report
MD5 bd8e8066d91fc3d0f48d71c860c7b8cd
Latest seen 2021-07-28 20:48:11 (4 years ago)
First seen 2019-04-14 02:26:17 (7 years ago)
Size 459 KB
Publisher UCWeb Inc.
Product UC浏览器
Signed by TAOBAO (CHINA) SOFTWARE CO.,LTD.

Why it matters

Evidence available for this file

Detection

No final classification is available yet.

Timeline

First seen 2019-04-14 02:26:17 (7 years ago); latest analysis 2021-07-28 20:48:11 (4 years ago).

Publisher context

Company metadata: UCWeb Inc.. Product metadata: UC浏览器.

Digital signature

Signed by TAOBAO (CHINA) SOFTWARE 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

chrome_watcher.dll is a Windows file recorded in the ThreatInfo database. It is associated with UC浏览器. The reported company name is UCWeb Inc.. The current detection status is Undefined, based on the latest analysis from 2021-07-28 20:48:11 (4 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: UC浏览器
Company Name: UCWeb Inc.
MD5: bd8e8066d91fc3d0f48d71c860c7b8cd
Size: 459 KB
First Published: 2019-04-14 02:26:17 (7 years ago)
Latest Published: 2021-07-28 20:48:11 (4 years ago)
Status: Undefined (on last analysis)
Analysis Date: 2021-07-28 20:48:11 (4 years ago)

Overview

Signed By: TAOBAO (CHINA) SOFTWARE CO.,LTD.
Status: Valid

The signature on chrome_watcher.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%\ucbrowser\application

ThreatInfo has observed chrome_watcher.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 chrome_watcher.dll across 4 countries. Use this signal to compare local evidence with where the sample is most often reported.

Top country Taiwan
Share 40.0%
Low High activity

The strongest geographic signal for this file is Taiwan with 40.0% 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 chrome_watcher.dll 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

chrome_watcher.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 0x00039fbc
Image base 0x10000000

PE Sections:

Sections 7
Raw data 456192

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

.text 354816 bytes · 77.8% of section data
MD5 ec309e8e237cc1d83583c48dc843fcdf
.rdata 78336 bytes · 17.2% of section data
MD5 473d8ac7e881e3df7cfa585a5bb4816d
.data 5120 bytes · 1.1% of section data
MD5 9a7c9187f065485f98d8c40adeb0fc23
.gfids 1024 bytes · 0.2% of section data
Uncommon name
MD5 1189b30ba8a7249a96ee010874ecebe3
.tls 512 bytes · 0.1% of section data
MD5 bf619eac0cdf3f68d496ea9344137e8b
.rsrc 1536 bytes · 0.3% of section data
MD5 05edc0a6cd56460e8e06511be48b2c11
.reloc 14848 bytes · 3.3% of section data
MD5 9fd1993a30b0d64bf6e43156fb73a444

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 bd8e8066d91fc3d0f48d71c860c7b8cd.
  • 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.