GridinSoft Threat Intelligence

ucservice.exe threat report

Detected as PUP.UCBrowser File reputation report
MD5 138158e3538611bc8bda789905f737e8
Latest seen 2021-01-07 07:41:12 (5 years ago)
First seen 2021-01-07 07:41:12 (5 years ago)
Size 691 KB
Publisher UCWeb Inc.
Product UCBrowser Service
Signed by TAOBAO (CHINA) SOFTWARE CO.,LTD.

GridinSoft Anti-Malware detection

Detected by GridinSoft before you download

The current ThreatInfo record shows this exact file hash detected as PUP.UCBrowser. Download GridinSoft Anti-Malware to scan the device, confirm whether this file is present, and remove the detected object if it is found.

Detection name
PUP.UCBrowser
Recommended action
Scan and remove
Last analysis
2021-01-07 07:41:12 (5 years ago)
File hash
138158e3538611bc8bda789905f737e8
Download Anti-Malware

Why it matters

Why GridinSoft flags this file

Detection

GridinSoft identifies the sample as PUP.UCBrowser.

Timeline

First seen 2021-01-07 07:41:12 (5 years ago); latest analysis 2021-01-07 07:41:12 (5 years ago).

Publisher context

Company metadata: UCWeb Inc.. Product metadata: UCBrowser Service.

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. Compare the MD5 above with the file found on the device.
  2. Check whether the file appears in the observed locations or under one of the alternate names.
  3. Run GridinSoft Anti-Malware to confirm the detection and remove the file if it is present.

File context

ucservice.exe is a Windows file recorded in the ThreatInfo database. It is associated with UCBrowser Service. The reported company name is UCWeb Inc.. The current detection status is PUP.UCBrowser, based on the latest analysis from 2021-01-07 07:41:12 (5 years ago).

If ucservice.exe appears on your computer unexpectedly, treat it as suspicious. Check its location, digital signature, and recent system changes before allowing it to run. A full anti-malware scan is recommended when this file is detected as PUP.UCBrowser.

File Details

Product Name: UCBrowser Service
Company Name: UCWeb Inc.
MD5: 138158e3538611bc8bda789905f737e8
Size: 691 KB
First Published: 2021-01-07 07:41:12 (5 years ago)
Latest Published: 2021-01-07 07:41:12 (5 years ago)
Status: PUP.UCBrowser (on last analysis)
Analysis Date: 2021-01-07 07:41:12 (5 years ago)

Detection screenshot

ucservice.exe detection screenshot

The screenshot is a visual record of a GridinSoft Anti-Malware detection for this sample. Use the hash and metadata above as the primary identifiers when comparing the file on your system.

Overview

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

The signature on ucservice.exe 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

ThreatInfo has observed ucservice.exe 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.

OS Version:

Windows 7 100.0%

The most common operating system signal for ucservice.exe is Windows 7 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

ucservice.exe is identified as pe for 32-bit systems. The subsystem is Windows CUI. 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 CUI
Entry point 0x0005a763
Image base 0x00400000

PE Sections:

Sections 7
Raw data 615424

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

.text 497664 bytes · 80.9% of section data
MD5 d123cb32266c1b1ef735970f767514a0
.rdata 90624 bytes · 14.7% of section data
MD5 7ec19e40acef55781f25d85ab74d0c32
.data 4608 bytes · 0.7% of section data
MD5 664254edb6f604511dda53f344834155
.gfids 1024 bytes · 0.2% of section data
Uncommon name
MD5 7de25ed128ff0c931f9e695532358b94
.tls 512 bytes · 0.1% of section data
MD5 bf619eac0cdf3f68d496ea9344137e8b
.rsrc 2048 bytes · 0.3% of section data
MD5 ad10908fe2d0e76154a314fa724af2b1
.reloc 18944 bytes · 3.1% of section data
MD5 75c6d511f40fe026b27e13314e8aae2f

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

GridinSoft detects this file as PUP.UCBrowser

This report identifies ucservice.exe by MD5 138158e3538611bc8bda789905f737e8. If the same file is present on your device, scan the system and remove the detected object after confirming the hash and location.

Download GridinSoft Anti-Malware Scan the device and confirm whether this exact hash is present. Check this hash on VirusTotal

Recommended next steps

  • Compare the local file MD5 with 138158e3538611bc8bda789905f737e8.
  • Check the file path, publisher, and signature against the details in this report.
  • Run a GridinSoft scan and remove the object if the same hash is found.