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The FastExt1.dll File Analysis

Updated 1 month ago
Checked by Malware Check
FastExt1.dll

Technical Analysis

File Name FastExt1.dll
File Type
PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
Scanner Version 1.0.229.174
Database Version 2025-11-13 16:00:17 UTC
✓

Clean File

No threats detected by our scanner

0%
Detection Rate
235,504
File Size (bytes)
2025-11-13
Analysis Date

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File Identification

Hash Type Value Action
MD5
fccaaebcfffc7bcfabeeb70be8e952ae
SHA1
cf1718b562b7593667ca8a494f6da7ec866e809a
SHA256
7f4fc9209cd505227bf6662e88b99664daf3a034180c6143983d00c13d502785
SHA512
e124207393c56ede18c49f9d9d53df0fc4adf396241ea687cb43430dfc0d1883fa2defeaefa4625c2fb80ac19c73d0cebcab2711ffb266aa544723469e02baee
ImpHash
59620dfff03ee0840945d8ea63074ced

PE Analysis

Basic Information

▼
Icon
Hash: a6e68bb924bae484ea96c226695d245a
Fuzzy: be36e9241c67fd47fbdb27959bfe5ef6
dHash: e8e8b632da1ab8e4
Image Base 0x10000000
Entry Point 0x100140d4
Compilation Time 2025-01-27 13:23:31
Checksum 0x00046474 (Actual: 0x00046474)
OS Version 5.1
PEiD Signatures PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
PDB Path C:\FastCopy\Obj\ReleaseShl\FastExt1.pdb
Digital Signature OK
Imports 1 libraries
KERNEL32
Exports 10 functions
Resources 7 Resources
Sections 5 Sections

Version Information

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Comments https://fastcopy.jp
CompanyName FastCopy Lab, LLC.
FileDescription Shell Extension for FastCopy
FileVersion 5.8.1.0
InternalName Shell Extension for FastCopy
LegalCopyright Copyright (C) 2004-2025 SHIROUZU Hiroaki and FastCopy Lab, LLC. All rights reserved.
OriginalFilename fastext1.dll
ProductName Shell Extension for FastCopy
ProductVersion 5.8.1.0
Translation 0x0411 0x04b0

PE Sections

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Name Virtual Address Virtual Size Raw Size Entropy Characteristics MD5
.text 0x00001000 146,167 bytes 146,432 bytes 6.90 (Compressed) IMAGE_SCN_CNT_CODE|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ 91EC591EBF90C4C4A597BCA99F31A1EC
.rdata 0x00025000 59,022 bytes 59,392 bytes 6.02 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ 3ED492EFE739361F1E5F09C9BA51B723
.data 0x00034000 80,192 bytes 3,072 bytes 3.40 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE 57CDCF920236069264C91EF7793252BE
.rsrc 0x00048000 3,568 bytes 3,584 bytes 4.30 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ 04D36FD52AF5F1B7402CD6AE39FE2305
.reloc 0x00049000 5,824 bytes 6,144 bytes 6.45 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_DISCARDABLE|IMAGE_SCN_MEM_READ 129EC7AB232EAF66B4C675ABACE2A44F
Entropy Analysis Alert

1 section(s) with elevated entropy (≥6.5) - possible compression

Resource Analysis

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Total Resources: 7 (3,117 bytes)
Resource Type Count Total Size Percentage
RT_ICON 1 872 bytes
28%
RT_STRING 3 828 bytes
26.6%
RT_GROUP_ICON 1 20 bytes
0.6%
RT_VERSION 1 1,016 bytes
32.6%
RT_MANIFEST 1 381 bytes
12.2%

Certificate Chain Analysis

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No Digital Signatures

This file is not digitally signed.

Security Implications:
  • Cannot verify the publisher's identity
  • Increased security risk when running this file
  • May trigger security warnings on some systems

⚠ This file either lacks a digital signature or the certificate chain could not be verified
Exercise caution when executing unsigned files from unknown sources

Certificate Verification Status

OK

Remember: This is Result of Online Virus Scanner

Gridinsoft Anti-Malware has a much more powerful virus scanning engine. We recommend using it for a more precise diagnosis of infected systems. This brief guide will help you install our flagship product for more accurate diagnostics:

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Keep Your System Protected

This file appears clean, but regular security maintenance is important

  1. Regular Scans: Run weekly system scans to detect new threats before they can cause damage.
  2. Keep Software Updated: Ensure your operating system and all applications have the latest security patches.
  3. Safe Browsing: Avoid suspicious websites and never download software from untrusted sources.
  4. Email Security: Be cautious with email attachments and links, even from known contacts.
Proactive Protection
This file passed all security checks, but stay vigilant. New malware variants appear daily that can evade detection. Always verify files come from official sources and check digital signatures when available.

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