GridinSoft Threat Intelligence

pchsdu.exe threat report

Detected as PUP.Avanquest File reputation report
MD5 f37e8dfc1fde02f3cfaeb44755398824
Latest seen 2026-02-08 23:06:37 (3 months ago)
First seen 2022-08-19 23:34:44 (3 years ago)
Size 6 MB
Publisher PC HelpSoft
Product PC HelpSoft Driver Updater
Signed by PC HELPSOFT LABS INC.

GridinSoft Anti-Malware detection

Detected by GridinSoft before you download

The current ThreatInfo record shows this exact file hash detected as PUP.Avanquest. 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.Avanquest
Recommended action
Scan and remove
Last analysis
2026-02-08 23:06:37 (3 months ago)
File hash
f37e8dfc1fde02f3cfaeb44755398824
Download Anti-Malware

Why it matters

Why GridinSoft flags this file

Detection

GridinSoft identifies the sample as PUP.Avanquest.

Timeline

First seen 2022-08-19 23:34:44 (3 years ago); latest analysis 2026-02-08 23:06:37 (3 months ago).

Publisher context

Company metadata: PC HelpSoft . Product metadata: PC HelpSoft Driver Updater .

Digital signature

Signed by PC HELPSOFT LABS INC.. 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

pchsdu.exe is a Windows file recorded in the ThreatInfo database. It is associated with PC HelpSoft Driver Updater . The reported company name is PC HelpSoft . The current detection status is PUP.Avanquest, based on the latest analysis from 2026-02-08 23:06:37 (3 months ago).

If pchsdu.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.Avanquest.

File Details

Product Name: PC HelpSoft Driver Updater
Company Name: PC HelpSoft
MD5: f37e8dfc1fde02f3cfaeb44755398824
Size: 6 MB
First Published: 2022-08-19 23:34:44 (3 years ago)
Latest Published: 2026-02-08 23:06:37 (3 months ago)
Status: PUP.Avanquest (on last analysis)
Analysis Date: 2026-02-08 23:06:37 (3 months ago)

Detection screenshot

pchsdu.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: PC HELPSOFT LABS INC.
Status: Valid

The signature on pchsdu.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:

%commonappdata%
%profile%
%localappdata%\microsoft\edge\user data\default\cache
%sysdrive%\$recycle.bin
%profile%\downloads\_getintopc.com_pchelpsoft_driver_updater_6.1.765

ThreatInfo has observed pchsdu.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.

Geography:

4 observed countries
37.5%
25.0%
25.0%
12.5%

The strongest geographic signal for this file is Colombia with 37.5% 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 pchsdu.exe 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

pchsdu.exe 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 0x000b5eec
Image base 0x00400000

PE Sections:

Sections 10
Raw data 830464

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

.text 735232 bytes · 88.5% of section data
MD5 ad6e46e3a3acdb533eb6a077f6d065af
.itext 6144 bytes · 0.7% of section data
Uncommon name
MD5 d40fc822339d01f2abcc5493ac101c94
.data 14336 bytes · 1.7% of section data
MD5 4c195d5591f6d61265df08a3733de3a2
.bss 0 bytes · 0.0% of section data
MD5 d41d8cd98f00b204e9800998ecf8427e
.idata 4096 bytes · 0.5% of section data
MD5 a73d686f1e8b9bb06ec767721135e397
.didata 512 bytes · 0.1% of section data
Uncommon name
MD5 41b8ce23dd243d14beebc71771885c89
.edata 512 bytes · 0.1% of section data
MD5 37c1a5c63717831863e018c0f51dabb7
.tls 0 bytes · 0.0% of section data
MD5 d41d8cd98f00b204e9800998ecf8427e
.rdata 512 bytes · 0.1% of section data
MD5 8f2f090acd9622c88a6a852e72f94e96
.rsrc 69120 bytes · 8.3% of section data
MD5 6748a0c63d127d1680a9286fafbe590f

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.Avanquest

This report identifies pchsdu.exe by MD5 f37e8dfc1fde02f3cfaeb44755398824. 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 f37e8dfc1fde02f3cfaeb44755398824.
  • 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.