GridinSoft Threat Intelligence

EuFdDisk.sys file report

Under review File reputation report
MD5 cabc74a1fe33769e88e4d9ba66201c07
Latest seen 2021-03-17 21:17:02 (5 years ago)
First seen 2019-04-25 19:33:50 (7 years ago)
Size 334 KB
Publisher CHENGDU YIWO Tech Development Co., Ltd
Product EaseUS Todo Backup
Signed by CHENGDU YIWO Tech Development Co., Ltd.;Chengdu Yiwo Technology Development Co., Ltd.

Why it matters

Evidence available for this file

Detection

No final classification is available yet.

Category context

Potentially unwanted programs, bundlers, installers, and utilities with intrusive behavior. Related PUP reports help compare this file with nearby detections, publishers, and hashes.

Timeline

First seen 2019-04-25 19:33:50 (7 years ago); latest analysis 2021-03-17 21:17:02 (5 years ago).

Publisher context

Company metadata: CHENGDU YIWO Tech Development Co., Ltd. Product metadata: EaseUS Todo Backup.

Digital signature

Signed by CHENGDU YIWO Tech Development Co., Ltd.;Chengdu Yiwo Technology Development 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

EuFdDisk.sys is a Windows file recorded in the ThreatInfo database. It is associated with EaseUS Todo Backup. The reported company name is CHENGDU YIWO Tech Development Co., Ltd. The current detection status is Undefined, based on the latest analysis from 2021-03-17 21:17:02 (5 years ago). ThreatInfo groups this verdict with PUP reports for broader family-level investigation.

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: EaseUS Todo Backup
Company Name: CHENGDU YIWO Tech Development Co., Ltd
MD5: cabc74a1fe33769e88e4d9ba66201c07
Size: 334 KB
First Published: 2019-04-25 19:33:50 (7 years ago)
Latest Published: 2021-03-17 21:17:02 (5 years ago)
Status: Undefined (on last analysis)
Analysis Date: 2021-03-17 21:17:02 (5 years ago)

Overview

Signed By: CHENGDU YIWO Tech Development Co., Ltd.;Chengdu Yiwo Technology Development Co., Ltd.
Status: Valid

The signature on EuFdDisk.sys 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:

%system%
%programfiles%\easeus\todo backup
%sysdrive%\program files (new setup)\todo backup

ThreatInfo has observed EuFdDisk.sys 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 EuFdDisk.sys across 16 countries. Use this signal to compare local evidence with where the sample is most often reported.

Top country Taiwan
Share 16.1%
Low High activity

The strongest geographic signal for this file is Taiwan with 16.1% 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 68.3%
Windows 10 23.8%
Windows 8 4.8%
Windows 8.1 3.2%

The most common operating system signal for EuFdDisk.sys is Windows 7 with 68.3% 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

EuFdDisk.sys is identified as pe for 64-bit systems. The subsystem is Native. PE header values are useful for triage, especially when they do not match the expected publisher, product, or release timeline.

Format pe
Architecture 64-bit
Subsystem Native
Entry point 0x000531ac
Image base 0x0000000000010000

PE Sections:

Sections 8
Raw data 331264

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

.text 255488 bytes · 77.1% of section data
MD5 661519bca792136634b48d47993e41f1
.rdata 51712 bytes · 15.6% of section data
MD5 d9300c9bfd617f6e8dd0e5f332980310
.data 5120 bytes · 1.5% of section data
MD5 5e5dd4984ab92dbfa129083fb93b27ad
.pdata 5632 bytes · 1.7% of section data
MD5 3795fae891bd6ce91fd02bcc8a1437fa
PAGE 6656 bytes · 2.0% of section data
Uncommon name
MD5 bf1e9d9b739b87f39c59eebfc3f8abfb
INIT 3072 bytes · 0.9% of section data
Uncommon name
MD5 03100445c3ad6bad24addfc7aa27371d
.rsrc 1536 bytes · 0.5% of section data
MD5 85d3ce7d4ff12a7a75681239e6e92297
.reloc 2048 bytes · 0.6% of section data
MD5 24efa6fc23d2aae907bacb01f7362b44

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 cabc74a1fe33769e88e4d9ba66201c07.
  • 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. Use the PUP category to compare similar reports.