Author: Nikko Tamana   
 

Trojan:Win32/Busky.D (Microsoft), Downloader.Affiliase (Norton)

 PLATFORM:

Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)

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

  • Threat Type:
    Trojan

  • Destructiveness:
    No

  • Encrypted:
     

  • In the wild::
    Yes

  OVERVIEW


  TECHNICAL DETAILS

File size: 186,368 bytes
File type: DLL
INITIAL SAMPLES RECEIVED DATE: 08 de kwietnia de 2009

Instalación

Este malware infiltra el/los siguiente(s) archivo(s)/componente(s):

  • %Windows%\PerfInfo\NAnWpqHSC3wp.exe.bak
  • %Windows%\shngbggq\1.png
  • %Windows%\shngbggq\2.png
  • %Windows%\shngbggq\3.png
  • %Windows%\shngbggq\4.png
  • %Windows%\shngbggq\5.png
  • %Windows%\shngbggq\6.png
  • %Windows%\shngbggq\7.png
  • %Windows%\shngbggq\8.png
  • %Windows%\shngbggq\9.png
  • %Windows%\shngbggq\bottom-rc.gif
  • %Windows%\shngbggq\config.png
  • %Windows%\shngbggq\content.png
  • %Windows%\shngbggq\download.gif
  • %Windows%\shngbggq\frame-bg.gif
  • %Windows%\shngbggq\frame-bottom-left.gif
  • %Windows%\shngbggq\frame-h1bg.gif
  • %Windows%\shngbggq\head.png
  • %Windows%\shngbggq\icon.png
  • %Windows%\shngbggq\indexwp.html
  • %Windows%\shngbggq\main.css
  • %Windows%\shngbggq\memory-prots.png
  • %Windows%\shngbggq\net.png
  • %Windows%\shngbggq\pc-mag.gif
  • %Windows%\shngbggq\pc.gif
  • %Windows%\shngbggq\poloska1.png
  • %Windows%\shngbggq\poloska2.png
  • %Windows%\shngbggq\poloska3.png
  • %Windows%\shngbggq\promowp1.html
  • %Windows%\shngbggq\promowp2.html
  • %Windows%\shngbggq\promowp3.html
  • %Windows%\shngbggq\promowp4.html
  • %Windows%\shngbggq\promowp5.html
  • %Windows%\shngbggq\reg.png
  • %Windows%\shngbggq\repair.png
  • %Windows%\shngbggq\scr-1.png
  • %Windows%\shngbggq\scr-2.png
  • %Windows%\shngbggq\start.png
  • %Windows%\shngbggq\styles.css
  • %Windows%\shngbggq\Thumbs.db
  • %Windows%\shngbggq\top-rc.gif
  • %Windows%\shngbggq\vline.gif
  • %Windows%\shngbggq\wp.png

(Nota: %Windows% es la carpeta de Windows, que suele estar en C:\Windows o C:\WINNT).

)

Crea las carpetas siguientes:

  • %Windows%\PerfInfo
  • %Windows%\shngbggq

(Nota: %Windows% es la carpeta de Windows, que suele estar en C:\Windows o C:\WINNT).

)

Técnica de inicio automático

Agrega las siguientes entradas de registro para permitir su ejecución automática cada vez que se inicia el sistema:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\policies\
Explorer\Run
{random characters} = "rundll32.exe "{Malware Path and File Name}.dll",DllCleanServer"

Otras modificaciones del sistema

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

HKEY_CURRENT_USER\Software\Preinstall

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\policies\
Explorer

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\policies\
Explorer\Run

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

HKEY_CURRENT_USER\Software\Preinstall
btsc = "{hex values}"