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The FastEx11.dll (Shell Extension for FastCopy) File Analysis

Updated 1 month ago
Checked by Malware Check
FastEx11.dll

Technical Analysis

File Name FastEx11.dll
File Type
PE32+ executable (DLL) (GUI) x86-64, 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
356,712
File Size (bytes)
2025-11-13
Analysis Date

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File Identification

Hash Type Value Action
MD5
627033483cfc93a3786332bbf547c758
SHA1
056a3a2f040949699499fa8f2d95130ddad08520
SHA256
3087e2d93dc1f458f38c9b74c10e006109497c169ba6c628038590b12b153009
SHA512
c6e8d88267be849f3be53f7594a866a59187145d0c7ff73ec23e4bd64047b97ae8e32247f158ce33faa86f2c892d88f42a7c3b871e66c610ef0975a7e15ae94c
ImpHash
48947328592d50da3c61b15285f1c931

PE Analysis

Basic Information

▼
Icon
Hash: a6e68bb924bae484ea96c226695d245a
Fuzzy: be36e9241c67fd47fbdb27959bfe5ef6
dHash: e8e8b632da1ab8e4
Image Base 0x180000000
Entry Point 0x18001fa40
Compilation Time 2025-01-27 13:23:34
Checksum 0x000654c3 (Actual: 0x000654c3)
OS Version 6.0
PEiD Signatures PE32+ executable (DLL) (GUI) x86-64, for MS Windows
PDB Path C:\FastCopy\x64\Obj\ReleaseShl2\FastEx11.pdb
Digital Signature OK
Imports 16 libraries
Exports 14 functions
Resources 7 Resources
Sections 7 Sections

Version Information

▼
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 219,519 bytes 219,648 bytes 6.74 (Compressed) IMAGE_SCN_CNT_CODE|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ 2A88AF410964565885B923B9C0D15438
.rdata 0x00037000 95,592 bytes 95,744 bytes 5.55 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ D7032CC1E35F8AE44BB23E88AEE7CB52
.data 0x0004f000 91,680 bytes 7,680 bytes 4.00 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE 20D0A0A83C30A542B1A1B276B118F196
.pdata 0x00066000 9,912 bytes 10,240 bytes 5.51 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ B690AF0DE24A680DE5D0919F4F02230A
.fptable 0x00069000 256 bytes 512 bytes 0.00 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE BF619EAC0CDF3F68D496EA9344137E8B
.rsrc 0x0006a000 3,568 bytes 3,584 bytes 4.31 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ 7922DA3A1146CAF8EE19FAF8E8DF7F71
.reloc 0x0006b000 2,232 bytes 2,560 bytes 5.13 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_DISCARDABLE|IMAGE_SCN_MEM_READ 36E92A836A6F61742F696B182262C9CD
Entropy Analysis Alert

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

Resource Analysis

▼
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

▼
Certificate Information
Product Shell Extension for FastCopy
Description Shell Extension for FastCopy
File Version 5.8.1.0
Original Name fastext1.dll
Signing Date 01:24 PM 01/27/2025 (347 days ago)
Verification Status Signed
Signers FastCopy Lab, LLC.; Microsoft ID Verified CS AOC CA 02; Microsoft ID Verified Code Signing PCA 2021; Microsoft Identity Verification Root Certificate Authority 2020
Counter Signers Microsoft Public RSA Time Stamping Authority; Microsoft Public RSA Timestamping CA 2020; Microsoft Identity Verification Root Certificate Authority 2020
Internal Name Shell Extension for FastCopy
Copyright Copyright (C) 2004-2025 SHIROUZU Hiroaki and FastCopy Lab, LLC. All rights reserved.

✓ This file has been digitally signed and the certificate chain has been verified

  • The signature ensures file integrity and authenticity from the publisher
  • Timestamping proves when the signature was applied
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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