Author: Maria Emreen Viray   
 

HackTool:Win32/GendowsBatch (MICROSOFT)

 PLATFORM:

Windows

 OVER ALL RISK RATING:
 DAMAGE POTENTIAL::
 REPORTED INFECTION:
 Beeinträchtigung der Systemleistung ::
 INFORMATION EXPOSURE:
Low
Medium
High
Critical

  • Threat Type:
    Trojan Spy

  • Destructiveness:
    No

  • Encrypted:
     

  • In the wild::
    Yes

  OVERVIEW

It 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: 36,437,501 bytes
File type: EXE
Memory resident: No
INITIAL SAMPLES RECEIVED DATE: 05 października 2021

Detalles de entrada

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

Instalación

Agrega las carpetas siguientes:

  • %Program Files%\{BLOCKED}C51
  • %System%\{BLOCKED}JSPCSP
  • %Common Programs%\{BLOCKED}
  • %Common Programs%\{BLOCKED}\51楷翑忒
  • After uninstallation through ControlPanel or uninst.exe:
    • %User Temp%\~nsuA.tmp

Infiltra los archivos siguientes:

  • %Program Files%\{BLOCKED}C51\51boxtrace.eti
  • %Program Files%\{BLOCKED}C51\51fapiao.cer
  • %Program Files%\{BLOCKED}C51\51fapiaotest.cer
  • %Program Files%\{BLOCKED}C51\Assist.exe
  • %Program Files%\{BLOCKED}C51\Assist.exe.Config
  • %Program Files%\{BLOCKED}C51\BSWJURL.ini
  • %Program Files%\{BLOCKED}C51\C51CloudInvoiceAdapter.exe
  • %Program Files%\{BLOCKED}C51\C51CloudInvoiceProtect.exe
  • %Program Files%\{BLOCKED}C51\C51InvoiceAssist.exe
  • %Program Files%\{BLOCKED}C51\C51InvoiceGuide.exe
  • %Program Files%\{BLOCKED}C51\CertDecoder.dll
  • %Program Files%\{BLOCKED}C51\CertSecurity.dll
  • %Program Files%\{BLOCKED}C51\CloudInvoiceAdapterService.exe
  • %Program Files%\{BLOCKED}C51\DataTransferToolDownload.exe
  • %Program Files%\{BLOCKED}C51\FQFQFQFQ.cer
  • %Program Files%\{BLOCKED}C51\FWS51PTC.cer
  • %Program Files%\{BLOCKED}C51\JSDiskDLL.dll
  • %Program Files%\{BLOCKED}C51\JsDevInfoDll.dll
  • %Program Files%\{BLOCKED}C51\JspInterface.dll
  • %Program Files%\{BLOCKED}C51\LogCtrl.cfg
  • %Program Files%\{BLOCKED}C51\NISEC_UKEYC.dll
  • %Program Files%\{BLOCKED}C51\Net_Util.dll
  • %Program Files%\{BLOCKED}C51\QWER1234.cer
  • %Program Files%\{BLOCKED}C51\RSADecrypt.dll
  • %Program Files%\{BLOCKED}C51\ReadAreaCode.dll
  • %Program Files%\{BLOCKED}C51\RegAsm.exe
  • %Program Files%\{BLOCKED}C51\SOFC.dll
  • %Program Files%\{BLOCKED}C51\Sm2Clt.dll
  • %Program Files%\{BLOCKED}C51\TaxBox.dll
  • %Program Files%\{BLOCKED}C51\TaxUKeyBase.dll
  • %Program Files%\{BLOCKED}C51\api-ms-win-core-file-l1-2-0.dll
  • %Program Files%\{BLOCKED}C51\api-ms-win-core-file-l2-1-0.dll
  • %Program Files%\{BLOCKED}C51\api-ms-win-core-localization-l1-2-0.dll
  • %Program Files%\{BLOCKED}C51\api-ms-win-core-processthreads-l1-1-1.dll
  • %Program Files%\{BLOCKED}C51\api-ms-win-core-synch-l1-2-0.dll
  • %Program Files%\{BLOCKED}C51\api-ms-win-core-timezone-l1-1-0.dll
  • %Program Files%\{BLOCKED}C51\api-ms-win-crt-convert-l1-1-0.dll
  • %Program Files%\{BLOCKED}C51\api-ms-win-crt-environment-l1-1-0.dll
  • %Program Files%\{BLOCKED}C51\api-ms-win-crt-filesystem-l1-1-0.dll
  • %Program Files%\{BLOCKED}C51\api-ms-win-crt-heap-l1-1-0.dll
  • %Program Files%\{BLOCKED}C51\api-ms-win-crt-locale-l1-1-0.dll
  • %Program Files%\{BLOCKED}C51\api-ms-win-crt-math-l1-1-0.dll
  • %Program Files%\{BLOCKED}C51\api-ms-win-crt-multibyte-l1-1-0.dll
  • %Program Files%\{BLOCKED}C51\api-ms-win-crt-runtime-l1-1-0.dll
  • %Program Files%\{BLOCKED}C51\api-ms-win-crt-stdio-l1-1-0.dll
  • %Program Files%\{BLOCKED}C51\api-ms-win-crt-string-l1-1-0.dll
  • %Program Files%\{BLOCKED}C51\api-ms-win-crt-time-l1-1-0.dll
  • %Program Files%\{BLOCKED}C51\api-ms-win-crt-utility-l1-1-0.dll
  • %Program Files%\{BLOCKED}C51\cryp_api.dll
  • %Program Files%\{BLOCKED}C51\decodecert.dll
  • %Program Files%\{BLOCKED}C51\delUKeyLog.bat
  • %Program Files%\{BLOCKED}C51\download.exe
  • %Program Files%\{BLOCKED}C51\ebasic__{BLOCKED}.dat
  • %Program Files%\{BLOCKED}C51\gbfw.bat
  • %Program Files%\{BLOCKED}C51\imgdecoder-gdip.dll
  • %Program Files%\{BLOCKED}C51\imgdecoder-png.dll
  • %Program Files%\{BLOCKED}C51\interface.ini
  • %Program Files%\{BLOCKED}C51\libcrypto-1_1.dll
  • %Program Files%\{BLOCKED}C51\libcurl.dll
  • %Program Files%\{BLOCKED}C51\libcurl_7.67.0.dll
  • %Program Files%\{BLOCKED}C51\libeay32.dll
  • %Program Files%\{BLOCKED}C51\libssl-1_1.dll
  • %Program Files%\{BLOCKED}C51\log4cxx.dll
  • %Program Files%\{BLOCKED}C51\logo.ico
  • %Program Files%\{BLOCKED}C51\msvcr100.dll
  • %Program Files%\{BLOCKED}C51\msvcr71.dll
  • %Program Files%\{BLOCKED}C51\paho-mqtt3c.dll
  • %Program Files%\{BLOCKED}C51\privcfg.ini
  • %Program Files%\{BLOCKED}C51\pthreadVC2.dll
  • %Program Files%\{BLOCKED}C51\public.pem
  • %Program Files%\{BLOCKED}C51\regasm.exe.config
  • %Program Files%\{BLOCKED}C51\render-gdi.dll
  • %Program Files%\{BLOCKED}C51\resprovider-7zip.dll
  • %Program Files%\{BLOCKED}C51\sangfor.dll
  • %Program Files%\{BLOCKED}C51\softSysVersion
  • %Program Files%\{BLOCKED}C51\soui.dll
  • %Program Files%\{BLOCKED}C51\sqlite3.dll
  • %Program Files%\{BLOCKED}C51\ssleay32.dll
  • %Program Files%\{BLOCKED}C51\swukeyinstaller.exe
  • %Program Files%\{BLOCKED}C51\trust.txt
  • %Program Files%\{BLOCKED}C51\trusttest.txt
  • %Program Files%\{BLOCKED}C51\ucrtbase.dll
  • %Program Files%\{BLOCKED}C51\uires.7z
  • %Program Files%\{BLOCKED}C51\uires_ypy.7z
  • %Program Files%\{BLOCKED}C51\ukeyinfo.ini
  • %Program Files%\{BLOCKED}C51\uniAcceptFramework.dll
  • %Program Files%\{BLOCKED}C51\uninst.ico
  • %Program Files%\{BLOCKED}C51\update.exe
  • %Program Files%\{BLOCKED}C51\utilities.dll
  • %Program Files%\{BLOCKED}C51\vcredist.x86_2015.exe
  • %Program Files%\{BLOCKED}C51\xihaa.dll
  • %Program Files%\{BLOCKED}C51\ykpzs.cait
  • %Program Files%\{BLOCKED}C51\zlib1.dll
  • %Program Files%\{BLOCKED}C51\zlibwapi.dll
  • %System%\ai109b_gm.dll
  • %System%\CTptkcs.dll
  • %System%\{BLOCKED}JSPCSP\{BLOCKED}_service_admin.exe
  • %System%\{BLOCKED}JSPCSP\cspPinDlg.dll
  • %System%\{BLOCKED}JSPCSP\cspsign.dll
  • %System%\{BLOCKED}JSPCSP\LYFCSP.dll
  • %System%\{BLOCKED}JSPCSP\tokenh.dll
  • %Common Programs%\{BLOCKED}\51楷翑忒\51楷翑忒.lnk
  • %Common Programs%\{BLOCKED}\51楷翑忒\迠婥 51楷翑忒.lnk
  • %Program Files%\{BLOCKED}C51\uninst.exe
  • %User Temp%\dd_vcredist_x86_{YYYYMMDD}{Random Digits}.log
  • Temporary files (attempt to delete afterwards):
    • %User Temp%\ns{Random Characters}.tmp\killer.dll
    • %User Temp%\ns{Random Characters}.tmp\System.dll
    • %User Temp%\ns{Random Characters}.tmp\KillProcDLL.dll
    • %User Temp%\ns{Random Characters}.tmp\nsExec.dll
    • %User Temp%\ns{Random Characters}.tmp\ns{Random Characters}.tmp
    • %User Temp%\{74d0e5db-b326-4dae-a6b2-445b9de1836e}\.ba1\wixstdba.dll
    • %User Temp%\{74d0e5db-b326-4dae-a6b2-445b9de1836e}\.ba1\{Random Digits}\license.rtf
    • %User Temp%\{74d0e5db-b326-4dae-a6b2-445b9de1836e}\.ba1\thm.xml
    • %User Temp%\{74d0e5db-b326-4dae-a6b2-445b9de1836e}\.ba1\thm.wxl
    • %User Temp%\{74d0e5db-b326-4dae-a6b2-445b9de1836e}\.ba1\logo.png
    • %User Temp%\{74d0e5db-b326-4dae-a6b2-445b9de1836e}\.ba1\license.rtf
    • %User Temp%\{74d0e5db-b326-4dae-a6b2-445b9de1836e}\.ba1\{Random Digits}\thm.wxl
    • %User Temp%\{74d0e5db-b326-4dae-a6b2-445b9de1836e}\.ba1\BootstrapperApplicationData.xml
  • After uninstallation through ControlPanel or uninst.exe:
    • %User Temp%\~nsuA.tmp\Un_A.exe
    • %User Temp%\~nsuA.tmp\Un_B.exe

Agrega los procesos siguientes:

  • "%User Temp%p\ns{Random Characters}.tmp\ns{Random Characters}.tmp" "vcredist.x86_2015.exe" /quiet /install /norestart
  • "vcredist.x86_2015.exe" /quiet /install /norestart
  • "%Program Files%\{BLOCKED}C51\vcredist.x86_2015.exe" /quiet /install /norestart -burn.unelevated BurnPipe.{Generated GUID 1} {Generated GUID 2} {Random Value}
  • "%Program Files%\{BLOCKED}C51\C51InvoiceGuide.exe"
  • After uninstallation through ControlPanel or uninst.exe:
    • "%User Temp%p\~nsuA.tmp\Un_B.exe" _?=%Program Files%\{BLOCKED}C51\
    • "%User Temp%p\ns{Random Characters}.tmp\ns{Random Characters}.tmp" "%System%\{BLOCKED}JSPCSP\{BLOCKED}_service_admin.exe" /stop
    • "%System%\{BLOCKED}JSPCSP\{BLOCKED}_service_admin.exe" /stop
    • "%User Temp%p\ns{Random Characters}.tmp\ns{Random Characters}.tmp" "%System%\{BLOCKED}JSPCSP\{BLOCKED}_service_admin.exe" /remove
    • "%System%\{BLOCKED}JSPCSP\{BLOCKED}_service_admin.exe" /remove

Otras modificaciones del sistema

Agrega las siguientes entradas de registro:

HKEY_LOCAL_MACHINE\SOFTWARE\gbskf\
Provider\{BLOCKED} JSP SKF V1.0
Image Path = %System%\ai109b_gm.dll

HKEY_LOCAL_MACHINE\SOFTWARE\gbskf\
Provider\{BLOCKED} JSP SKF V1.0
DefaultApplication = SM2

HKEY_LOCAL_MACHINE\SOFTWARE\gbskf\
Provider\{BLOCKED} JSP SKF V1.0
DefaultContainer = SM2CONTAINER

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Cryptography\Defaults\Provider\
{BLOCKED} Cryptographic Service Provider V1.0
Image Path = %System%\{BLOCKED}JSPCSP\cspsign.dll

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Cryptography\Defaults\Provider\
{BLOCKED} Cryptographic Service Provider V1.0
Signature = {Hex Values}

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Cryptography\Defaults\Provider\
{BLOCKED} Cryptographic Service Provider V1.0
Type = 1

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Cryptography\Calais\SmartCards\
{BLOCKED}Soft JSP UsbKey
ATR = {Hex Values}

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Cryptography\Calais\SmartCards\
{BLOCKED}Soft JSP UsbKey
ATRMask = {Hex Values}

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Cryptography\Calais\SmartCards\
{BLOCKED}Soft JSP UsbKey
Crypto Provider = {BLOCKED} Cryptographic Service Provider V1.0

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
51楷翑忒
DisplayName = 51楷翑忒 1.3.8

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
51楷翑忒
DisplayIcon = %Program Files%\{BLOCKED}C51\logo.ico

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
51楷翑忒
UninstallString = %Program Files%\{BLOCKED}C51\uninst.exe

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
51楷翑忒
DisplayVersion = 1.3.8

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
51楷翑忒
URLInfoAbout = http://www.{BLOCKED}.com

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
51楷翑忒
Publisher = {BLOCKED}

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
51楷翑忒
GroupFlag = 0

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
51楷翑忒
LocalFlag = 0

Otros detalles

Agrega las siguientes entradas de registro como parte de la rutina de instalación:

HKEY_LOCAL_MACHINE\SOFTWARE\gbskf

HKEY_LOCAL_MACHINE\SOFTWARE\gbskf\
Provider

HKEY_LOCAL_MACHINE\SOFTWARE\gbskf\
Provider\{BLOCKED} JSP SKF V1.0

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Cryptography\Defaults\Provider\
{BLOCKED} Cryptographic Service Provider V1.0

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Cryptography\Calais\SmartCards\
{BLOCKED}Soft JSP UsbKey

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
51楷翑忒

  SOLUTION

Minimum scan engine: 9.800
First VSAPI Pattern File: 17.116.05
First VSAPI Pattern Release Date: 07 października 2021
VSAPI OPR PATTERN-VERSION: 17.117.00
VSAPI OPR PATTERN DATE: 08 października 2021

Step 1

Los usuarios de Windows ME y XP, antes de llevar a cabo cualquier exploración, deben comprobar que tienen desactivada la opción Restaurar sistema para permitir la exploración completa del equipo.

Step 2

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 3

Quitar TrojanSpy.Win32.PSKEYLOGGER.A por medio de su propia opción de desinstalación

[ learnMore ]
Para desinstalar el proceso de grayware

Step 4

Eliminar este valor del Registro

[ learnMore ]

Importante: si modifica el Registro de Windows incorrectamente, podría hacer que el sistema funcione mal de manera irreversible. Lleve a cabo este paso solo si sabe cómo hacerlo o si puede contar con ayuda de su administrador del sistema. De lo contrario, lea este artículo de Microsoft antes de modificar el Registro del equipo.

  • In HKEY_LOCAL_MACHINE\SOFTWARE\gbskf\Provider\{BLOCKED} JSP SKF V1.0
    • Image Path = %System%\ai109b_gm.dll
  • In HKEY_LOCAL_MACHINE\SOFTWARE\gbskf\Provider\{BLOCKED} JSP SKF V1.0
    • DefaultApplication = SM2
  • In HKEY_LOCAL_MACHINE\SOFTWARE\gbskf\Provider\{BLOCKED} JSP SKF V1.0
    • DefaultContainer = SM2CONTAINER
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography\Calais\SmartCards\{BLOCKED}Soft JSP UsbKey
    • ATR = {Hex Values}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography\Calais\SmartCards\{BLOCKED}Soft JSP UsbKey
    • ATRMask = {Hex Values}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography\Calais\SmartCards\{BLOCKED}Soft JSP UsbKey
    • Crypto Provider = {BLOCKED} Cryptographic Service Provider V1.0
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography\Defaults\Provider\{BLOCKED} Cryptographic Service Provider V1.0
    • Image Path = %System%\{BLOCKED}JSPCSP\cspsign.dll
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography\Defaults\Provider\{BLOCKED} Cryptographic Service Provider V1.0
    • Signature = {Hex Values}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography\Defaults\Provider\{BLOCKED} Cryptographic Service Provider V1.0
    • Type = 1

Step 5

Eliminar esta clave del Registro

[ learnMore ]

Importante: si modifica el Registro de Windows incorrectamente, podría hacer que el sistema funcione mal de manera irreversible. Lleve a cabo este paso solo si sabe cómo hacerlo o si puede contar con ayuda de su administrador del sistema. De lo contrario, lea este artículo de Microsoft antes de modificar el Registro del equipo.

  • HKEY_LOCAL_MACHINE\SOFTWARE\gbskf
  • HKEY_LOCAL_MACHINE\SOFTWARE\gbskf\Provider
  • HKEY_LOCAL_MACHINE\SOFTWARE\gbskf\Provider\{BLOCKED} JSP SKF V1.0
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography\Defaults\Provider\{BLOCKED} Cryptographic Service Provider V1.0
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography\Calais\SmartCards\{BLOCKED}Soft JSP UsbKey

Step 6

Buscar y eliminar este archivo

[ learnMore ]
Puede que algunos de los archivos del componente estén ocultos. Asegúrese de que tiene activada la casilla Buscar archivos y carpetas ocultos en la opción Más opciones avanzadas para que el resultado de la búsqueda incluya todos los archivos y carpetas ocultos.
  • %User Temp%\ns{Random Characters}.tmp\killer.dll
  • %User Temp%\ns{Random Characters}.tmp\System.dll
  • %User Temp%\ns{Random Characters}.tmp\KillProcDLL.dll
  • %User Temp%\ns{Random Characters}.tmp\nsExec.dll
  • %User Temp%\ns{Random Characters}.tmp\ns{Random Characters}.tmp
  • %System%\ai109b_gm.dll
  • %System%\CTptkcs.dll

Step 7

Buscar y eliminar esta carpeta

[ learnMore ]
Asegúrese de que tiene activada la casilla Buscar archivos y carpetas ocultos en la opción Más opciones avanzadas para que el resultado de la búsqueda incluya todas las carpetas ocultas.
  • %User Temp%\ns{Random Characters}.tmp

Step 8

Explorar el equipo con su producto de Trend Micro para eliminar los archivos detectados como TrojanSpy.Win32.PSKEYLOGGER.A En caso de que el producto de Trend Micro ya haya limpiado, eliminado o puesto en cuarentena los archivos detectados, no serán necesarios más pasos. Puede optar simplemente por eliminar los archivos en cuarentena. Consulte esta página de Base de conocimientos para obtener más información.


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