Author: Neljorn Nathaniel Aguas   

 

SoftwareBundler:Win32/Dowadmin (MICROSOFT)

 PLATFORM:

Windows

 OVER ALL RISK RATING:
 DAMAGE POTENTIAL::
 DISTRIBUTION POTENTIAL::
 REPORTED INFECTION:
 INFORMATION EXPOSURE:
Low
Medium
High
Critical

  • Threat Type:
    Potentially Unwanted Application

  • Destructiveness:
    No

  • Encrypted:
     

  • In the wild::
    Yes

  OVERVIEW

INFECTION CHANNEL: Descargado de Internet, Eliminado por otro tipo de malware

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

Este malware no tiene ninguna rutina de propagación.

Este malware no tiene ninguna rutina de puerta trasera.

  TECHNICAL DETAILS

File size: 845,152 bytes
File type: EXE
Memory resident: No
INITIAL SAMPLES RECEIVED DATE: 18 de października de 2023
PAYLOAD: Connects to URLs/IPs, Displays graphics/image, Deletes files

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

Infiltra los archivos siguientes:

  • %User Temp%\ns{Random Characters}.tmp
  • %User Temp%\ns{Random Characters 1}.tmp\AdvancedTests.lua
  • %User Temp%\ns{Random Characters 1}.tmp\BrowserControl.lua
  • %User Temp%\ns{Random Characters 1}.tmp\DownloadList.lua
  • %User Temp%\ns{Random Characters 1}.tmp\DownloadThread.lua
  • %User Temp%\ns{Random Characters 1}.tmp\Events.lua
  • %User Temp%\ns{Random Characters 1}.tmp\FloatingProgress.dll
  • %User Temp%\ns{Random Characters 1}.tmp\GuiInit.lua
  • %User Temp%\ns{Random Characters 1}.tmp\IntegratedOffer.lua
  • %User Temp%\ns{Random Characters 1}.tmp\LuaBridge.dll
  • %User Temp%\ns{Random Characters 1}.tmp\LuaSocket\lua\ltn12.lua
  • %User Temp%\ns{Random Characters 1}.tmp\LuaSocket\lua\mime.lua
  • %User Temp%\ns{Random Characters 1}.tmp\LuaSocket\lua\socket.lua
  • %User Temp%\ns{Random Characters 1}.tmp\LuaSocket\lua\socket\ftp.lua
  • %User Temp%\ns{Random Characters 1}.tmp\LuaSocket\lua\socket\http.lua
  • %User Temp%\ns{Random Characters 1}.tmp\LuaSocket\lua\socket\smtp.lua
  • %User Temp%\ns{Random Characters 1}.tmp\LuaSocket\lua\socket\tp.lua
  • %User Temp%\ns{Random Characters 1}.tmp\LuaSocket\lua\socket\url.lua
  • %User Temp%\ns{Random Characters 1}.tmp\LuaSocket\mime\core.dll
  • %User Temp%\ns{Random Characters 1}.tmp\LuaSocket\socket\core.dll
  • %User Temp%\ns{Random Characters 1}.tmp\LuaXml_lib.dll
  • %User Temp%\ns{Random Characters 1}.tmp\System.dll
  • %User Temp%\ns{Random Characters 1}.tmp\UACInfo.dll
  • %User Temp%\ns{Random Characters 1}.tmp\__web.xml
  • %User Temp%\ns{Random Characters 1}.tmp\api_substitution.lua
  • %User Temp%\ns{Random Characters 1}.tmp\async_tracking.lua
  • %User Temp%\ns{Random Characters 1}.tmp\bit.dll
  • %User Temp%\ns{Random Characters 1}.tmp\browserutils.dll
  • %User Temp%\ns{Random Characters 1}.tmp\bundleinstall.lua
  • %User Temp%\ns{Random Characters 1}.tmp\callbackproxy.lua
  • %User Temp%\ns{Random Characters 1}.tmp\conditional_engine.lua
  • %User Temp%\ns{Random Characters 1}.tmp\data_injection.lua
  • %User Temp%\ns{Random Characters 1}.tmp\data_stores.lua
  • %User Temp%\ns{Random Characters 1}.tmp\definitions.lua
  • %User Temp%\ns{Random Characters 1}.tmp\downloads.lua
  • %User Temp%\ns{Random Characters 1}.tmp\eagerinstall.lua
  • %User Temp%\ns{Random Characters 1}.tmp\env.lua
  • %User Temp%\ns{Random Characters 1}.tmp\extension.tlb
  • %User Temp%\ns{Random Characters 1}.tmp\ffi.dll
  • %User Temp%\ns{Random Characters 1}.tmp\json.lua
  • %User Temp%\ns{Random Characters 1}.tmp\lua51.dll
  • %User Temp%\ns{Random Characters 1}.tmp\luacom.dll
  • %User Temp%\ns{Random Characters 1}.tmp\luaxml.lua
  • %User Temp%\ns{Random Characters 1}.tmp\net_utils.lua
  • %User Temp%\ns{Random Characters 1}.tmp\notifyicon.lua
  • %User Temp%\ns{Random Characters 1}.tmp\nsis7z.dll
  • %User Temp%\ns{Random Characters 1}.tmp\nsisunz.dll
  • %User Temp%\ns{Random Characters 1}.tmp\offer_filters.lua
  • %User Temp%\ns{Random Characters 1}.tmp\offer_stats.lua
  • %User Temp%\ns{Random Characters 1}.tmp\packaged_app.lua
  • %User Temp%\ns{Random Characters 1}.tmp\processfreefile.lua
  • %User Temp%\ns{Random Characters 1}.tmp\sandbox.lua
  • %User Temp%\ns{Random Characters 1}.tmp\scheduler.lua
  • %User Temp%\ns{Random Characters 1}.tmp\service_registry.lua
  • %User Temp%\ns{Random Characters 1}.tmp\skin\res\common.css
  • %User Temp%\ns{Random Characters 1}.tmp\skin\res\common.js
  • %User Temp%\ns{Random Characters 1}.tmp\skin\res\jquery.js
  • %User Temp%\ns{Random Characters 1}.tmp\skin\res\knockout.js
  • %User Temp%\ns{Random Characters 1}.tmp\survey_environment.lua
  • %User Temp%\ns{Random Characters 1}.tmp\uistate.lua
  • %User Temp%\ns{Random Characters 1}.tmp\un.package.exe
  • %User Temp%\ns{Random Characters 1}.tmp\utils.lua
  • %User Temp%\ns{Random Characters 1}.tmp\versioninfo.dll
  • %User Temp%\ns{Random Characters 1}.tmp\vm_details.lua
  • %User Temp%\ns{Random Characters 1}.tmp\win32_constants.lua
  • %User Temp%\ns{Random Characters 1}.tmp\win32_pipeserver.dll
  • %User Temp%\ns{Random Characters 1}.tmp\wininet\compat.lua
  • %User Temp%\ns{Random Characters 1}.tmp\wininet\core.lua
  • %User Temp%\ns{Random Characters 1}.tmp\wininet\defs.lua
  • %User Temp%\ns{Random Characters 1}.tmp\wininet\ftp.lua
  • %User Temp%\ns{Random Characters 1}.tmp\wininet\http.lua
  • %User Temp%\ns{Random Characters 1}.tmp\wininet\io.lua
  • %User Temp%\ns{Random Characters 1}.tmp\wininet\ltn12.lua
  • %User Temp%\ns{Random Characters 1}.tmp\wininet\url.lua
  • %User Temp%\ns{Random Characters 1}.tmp\wininet\wininet_h.lua
  • %User Temp%\ns{Random Characters 1}.tmp\wininet\wintypes.lua
  • %User Temp%\ns{Random Characters 2}.tmp\LuaBridge.dll
  • %User Temp%\ns{Random Characters 3}.tmp\LuaBridge.dll

(Nota: %User Temp% es la carpeta Temp del usuario activo, que en el caso de Windows 2000(32-bit), XP y Server 2003(32-bit) suele estar en C:\Documents and Settings\{nombre de usuario}\Local Settings\Temp y en el case de Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) y 10(64-bit) en C:\Users\{nombre de usuario}\AppData\Local\Temp).

)

Propagación

Este malware no tiene ninguna rutina de propagación.

Rutina de puerta trasera

Este malware no tiene ninguna rutina de puerta trasera.

Otros detalles

Hace lo siguiente:

  • It deletes the following files if connection to the URL is unsuccessful:
    • %User Temp%\ns{Random Characters}.tmp
    • %User Temp%\ns{Random Characters 1}.tmp\AdvancedTests.lua
    • %User Temp%\ns{Random Characters 1}.tmp\BrowserControl.lua
    • %User Temp%\ns{Random Characters 1}.tmp\DownloadList.lua
    • %User Temp%\ns{Random Characters 1}.tmp\DownloadThread.lua
    • %User Temp%\ns{Random Characters 1}.tmp\Events.lua
    • %User Temp%\ns{Random Characters 1}.tmp\GuiInit.lua
    • %User Temp%\ns{Random Characters 1}.tmp\IntegratedOffer.lua
    • %User Temp%\ns{Random Characters 1}.tmp\LuaSocket\lua\ltn12.lua
    • %User Temp%\ns{Random Characters 1}.tmp\LuaSocket\lua\mime.lua
    • %User Temp%\ns{Random Characters 1}.tmp\LuaSocket\lua\socket.lua
    • %User Temp%\ns{Random Characters 1}.tmp\LuaSocket\lua\socket\ftp.lua
    • %User Temp%\ns{Random Characters 1}.tmp\LuaSocket\lua\socket\http.lua
    • %User Temp%\ns{Random Characters 1}.tmp\LuaSocket\lua\socket\smtp.lua
    • %User Temp%\ns{Random Characters 1}.tmp\LuaSocket\lua\socket\tp.lua
    • %User Temp%\ns{Random Characters 1}.tmp\LuaSocket\lua\socket\url.lua
    • %User Temp%\ns{Random Characters 1}.tmp\__web.xml
    • %User Temp%\ns{Random Characters 1}.tmp\api_substitution.lua
    • %User Temp%\ns{Random Characters 1}.tmp\async_tracking.lua
    • %User Temp%\ns{Random Characters 1}.tmp\browserutils.dll
    • %User Temp%\ns{Random Characters 1}.tmp\bundleinstall.lua
    • %User Temp%\ns{Random Characters 1}.tmp\callbackproxy.lua
    • %User Temp%\ns{Random Characters 1}.tmp\conditional_engine.lua
    • %User Temp%\ns{Random Characters 1}.tmp\data_injection.lua
    • %User Temp%\ns{Random Characters 1}.tmp\data_stores.lua
    • %User Temp%\ns{Random Characters 1}.tmp\definitions.lua
    • %User Temp%\ns{Random Characters 1}.tmp\downloads.lua
    • %User Temp%\ns{Random Characters 1}.tmp\eagerinstall.lua
    • %User Temp%\ns{Random Characters 1}.tmp\env.lua
    • %User Temp%\ns{Random Characters 1}.tmp\extension.tlb
    • %User Temp%\ns{Random Characters 1}.tmp\json.lua
    • %User Temp%\ns{Random Characters 1}.tmp\luacom.dll
    • %User Temp%\ns{Random Characters 1}.tmp\luaxml.lua
    • %User Temp%\ns{Random Characters 1}.tmp\net_utils.lua
    • %User Temp%\ns{Random Characters 1}.tmp\notifyicon.lua
    • %User Temp%\ns{Random Characters 1}.tmp\nsis7z.dll
    • %User Temp%\ns{Random Characters 1}.tmp\nsisunz.dll
    • %User Temp%\ns{Random Characters 1}.tmp\offer_filters.lua
    • %User Temp%\ns{Random Characters 1}.tmp\offer_stats.lua
    • %User Temp%\ns{Random Characters 1}.tmp\packaged_app.lua
    • %User Temp%\ns{Random Characters 1}.tmp\processfreefile.lua
    • %User Temp%\ns{Random Characters 1}.tmp\sandbox.lua
    • %User Temp%\ns{Random Characters 1}.tmp\scheduler.lua
    • %User Temp%\ns{Random Characters 1}.tmp\service_registry.lua
    • %User Temp%\ns{Random Characters 1}.tmp\skin\res\common.css
    • %User Temp%\ns{Random Characters 1}.tmp\skin\res\common.js
    • %User Temp%\ns{Random Characters 1}.tmp\skin\res\jquery.js
    • %User Temp%\ns{Random Characters 1}.tmp\skin\res\knockout.js
    • %User Temp%\ns{Random Characters 1}.tmp\survey_environment.lua
    • %User Temp%\ns{Random Characters 1}.tmp\uistate.lua
    • %User Temp%\ns{Random Characters 1}.tmp\un.package.exe
    • %User Temp%\ns{Random Characters 1}.tmp\utils.lua
    • %User Temp%\ns{Random Characters 1}.tmp\vm_details.lua
    • %User Temp%\ns{Random Characters 1}.tmp\win32_constants.lua
    • %User Temp%\ns{Random Characters 1}.tmp\win32_pipeserver.dll
    • %User Temp%\ns{Random Characters 1}.tmp\wininet\compat.lua
    • %User Temp%\ns{Random Characters 1}.tmp\wininet\core.lua
    • %User Temp%\ns{Random Characters 1}.tmp\wininet\defs.lua
    • %User Temp%\ns{Random Characters 1}.tmp\wininet\ftp.lua
    • %User Temp%\ns{Random Characters 1}.tmp\wininet\http.lua
    • %User Temp%\ns{Random Characters 1}.tmp\wininet\io.lua
    • %User Temp%\ns{Random Characters 1}.tmp\wininet\ltn12.lua
    • %User Temp%\ns{Random Characters 1}.tmp\wininet\url.lua
    • %User Temp%\ns{Random Characters 1}.tmp\wininet\wininet_h.lua
    • %User Temp%\ns{Random Characters 1}.tmp\wininet\wintypes.lua
  • It displays an installation GUI upon execution:
  • It displays the following upon unsuccessful connection to the URL:

  SOLUTION

Minimum scan engine: 9.800
SSAPI Pattern-Datei: 2.667.00
SSAPI Pattern veröffentlicht am: 19 de października de 2023

Step 2

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 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

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
  • %User Temp%\ns{Random Characters 1}.tmp\AdvancedTests.lua
  • %User Temp%\ns{Random Characters 1}.tmp\BrowserControl.lua
  • %User Temp%\ns{Random Characters 1}.tmp\DownloadList.lua
  • %User Temp%\ns{Random Characters 1}.tmp\DownloadThread.lua
  • %User Temp%\ns{Random Characters 1}.tmp\Events.lua
  • %User Temp%\ns{Random Characters 1}.tmp\FloatingProgress.dll
  • %User Temp%\ns{Random Characters 1}.tmp\GuiInit.lua
  • %User Temp%\ns{Random Characters 1}.tmp\IntegratedOffer.lua
  • %User Temp%\ns{Random Characters 1}.tmp\LuaBridge.dll
  • %User Temp%\ns{Random Characters 1}.tmp\LuaSocket\lua\ltn12.lua
  • %User Temp%\ns{Random Characters 1}.tmp\LuaSocket\lua\mime.lua
  • %User Temp%\ns{Random Characters 1}.tmp\LuaSocket\lua\socket.lua
  • %User Temp%\ns{Random Characters 1}.tmp\LuaSocket\lua\socket\ftp.lua
  • %User Temp%\ns{Random Characters 1}.tmp\LuaSocket\lua\socket\http.lua
  • %User Temp%\ns{Random Characters 1}.tmp\LuaSocket\lua\socket\smtp.lua
  • %User Temp%\ns{Random Characters 1}.tmp\LuaSocket\lua\socket\tp.lua
  • %User Temp%\ns{Random Characters 1}.tmp\LuaSocket\lua\socket\url.lua
  • %User Temp%\ns{Random Characters 1}.tmp\LuaSocket\mime\core.dll
  • %User Temp%\ns{Random Characters 1}.tmp\LuaSocket\socket\core.dll
  • %User Temp%\ns{Random Characters 1}.tmp\LuaXml_lib.dll
  • %User Temp%\ns{Random Characters 1}.tmp\System.dll
  • %User Temp%\ns{Random Characters 1}.tmp\UACInfo.dll
  • %User Temp%\ns{Random Characters 1}.tmp\__web.xml
  • %User Temp%\ns{Random Characters 1}.tmp\api_substitution.lua
  • %User Temp%\ns{Random Characters 1}.tmp\async_tracking.lua
  • %User Temp%\ns{Random Characters 1}.tmp\bit.dll
  • %User Temp%\ns{Random Characters 1}.tmp\browserutils.dll
  • %User Temp%\ns{Random Characters 1}.tmp\bundleinstall.lua
  • %User Temp%\ns{Random Characters 1}.tmp\callbackproxy.lua
  • %User Temp%\ns{Random Characters 1}.tmp\conditional_engine.lua
  • %User Temp%\ns{Random Characters 1}.tmp\data_injection.lua
  • %User Temp%\ns{Random Characters 1}.tmp\data_stores.lua
  • %User Temp%\ns{Random Characters 1}.tmp\definitions.lua
  • %User Temp%\ns{Random Characters 1}.tmp\downloads.lua
  • %User Temp%\ns{Random Characters 1}.tmp\eagerinstall.lua
  • %User Temp%\ns{Random Characters 1}.tmp\env.lua
  • %User Temp%\ns{Random Characters 1}.tmp\extension.tlb
  • %User Temp%\ns{Random Characters 1}.tmp\ffi.dll
  • %User Temp%\ns{Random Characters 1}.tmp\json.lua
  • %User Temp%\ns{Random Characters 1}.tmp\lua51.dll
  • %User Temp%\ns{Random Characters 1}.tmp\luacom.dll
  • %User Temp%\ns{Random Characters 1}.tmp\luaxml.lua
  • %User Temp%\ns{Random Characters 1}.tmp\net_utils.lua
  • %User Temp%\ns{Random Characters 1}.tmp\notifyicon.lua
  • %User Temp%\ns{Random Characters 1}.tmp\nsis7z.dll
  • %User Temp%\ns{Random Characters 1}.tmp\nsisunz.dll
  • %User Temp%\ns{Random Characters 1}.tmp\offer_filters.lua
  • %User Temp%\ns{Random Characters 1}.tmp\offer_stats.lua
  • %User Temp%\ns{Random Characters 1}.tmp\packaged_app.lua
  • %User Temp%\ns{Random Characters 1}.tmp\processfreefile.lua
  • %User Temp%\ns{Random Characters 1}.tmp\sandbox.lua
  • %User Temp%\ns{Random Characters 1}.tmp\scheduler.lua
  • %User Temp%\ns{Random Characters 1}.tmp\service_registry.lua
  • %User Temp%\ns{Random Characters 1}.tmp\skin\res\common.css
  • %User Temp%\ns{Random Characters 1}.tmp\skin\res\common.js
  • %User Temp%\ns{Random Characters 1}.tmp\skin\res\jquery.js
  • %User Temp%\ns{Random Characters 1}.tmp\skin\res\knockout.js
  • %User Temp%\ns{Random Characters 1}.tmp\survey_environment.lua
  • %User Temp%\ns{Random Characters 1}.tmp\uistate.lua
  • %User Temp%\ns{Random Characters 1}.tmp\un.package.exe
  • %User Temp%\ns{Random Characters 1}.tmp\utils.lua
  • %User Temp%\ns{Random Characters 1}.tmp\versioninfo.dll
  • %User Temp%\ns{Random Characters 1}.tmp\vm_details.lua
  • %User Temp%\ns{Random Characters 1}.tmp\win32_constants.lua
  • %User Temp%\ns{Random Characters 1}.tmp\win32_pipeserver.dll
  • %User Temp%\ns{Random Characters 1}.tmp\wininet\compat.lua
  • %User Temp%\ns{Random Characters 1}.tmp\wininet\core.lua
  • %User Temp%\ns{Random Characters 1}.tmp\wininet\defs.lua
  • %User Temp%\ns{Random Characters 1}.tmp\wininet\ftp.lua
  • %User Temp%\ns{Random Characters 1}.tmp\wininet\http.lua
  • %User Temp%\ns{Random Characters 1}.tmp\wininet\io.lua
  • %User Temp%\ns{Random Characters 1}.tmp\wininet\ltn12.lua
  • %User Temp%\ns{Random Characters 1}.tmp\wininet\url.lua
  • %User Temp%\ns{Random Characters 1}.tmp\wininet\wininet_h.lua
  • %User Temp%\ns{Random Characters 1}.tmp\wininet\wintypes.lua
  • %User Temp%\ns{Random Characters 2}.tmp\LuaBridge.dll
  • %User Temp%\ns{Random Characters 3}.tmp\LuaBridge.dll

Step 5

Buscar y eliminar estas carpetas

[ 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 1}.tmp\LuaSocket\lua\socket
  • %User Temp%\ns{Random Characters 1}.tmp\LuaSocket\lua
  • %User Temp%\ns{Random Characters 1}.tmp\LuaSocket\mime
  • %User Temp%\ns{Random Characters 1}.tmp\LuaSocket\socket
  • %User Temp%\ns{Random Characters 1}.tmp\LuaSocket
  • %User Temp%\ns{Random Characters 1}.tmp\skin\res
  • %User Temp%\ns{Random Characters 1}.tmp\skin
  • %User Temp%\ns{Random Characters 1}.tmp\wininet
  • %User Temp%\ns{Random Characters 1}.tmp
  • %User Temp%\ns{Random Characters 2}.tmp
  • %User Temp%\ns{Random Characters 3}.tmp

Step 6

Explorar el equipo con su producto de Trend Micro para eliminar los archivos detectados como PUA.Win32.ZipAdmin.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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