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Profil

Win32.HLLW.Autoruner1.10366

Added to the Dr.Web virus database: 2011-12-31

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'visiter' = '%WINDIR%\visit.exe'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'svchost.exe' = '%APPDATA%\Microsoft\svchost.exe'
Creates the following files on removable media:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\svchost.exe
Malicious functions:
Creates and executes the following:
  • %WINDIR%\startup.exe 
  • %WINDIR%\visit.exe 
  • %APPDATA%\Microsoft\svchost.exe 
  • %TEMP%\lsass.exe 
  • %TEMP%\vst.exe 
Executes the following:
  • <SYSTEM32>\taskkill.exe /f /im startup.exe
  • <SYSTEM32>\reg.exe add HKLM\Software\Microsoft\Windows\CurrentVersion\Run /v visiter /t REG_SZ /d %WINDIR%\visit.exe /f
  • <SYSTEM32>\cmd.exe /c ""%PROGRAM_FILES%\1.bat" "
Modifies file system :
Creates the following files:
  • %WINDIR%\startup.exe
  • %WINDIR%\visit.exe
  • %PROGRAM_FILES%\1.bat
  • %TEMP%\lsass.exe
  • %TEMP%\vst.exe
  • %APPDATA%\Microsoft\svchost.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\svchost.exe
  • %APPDATA%\Microsoft\svchost.exe
Network activity:
Connects to:
  • '1k#.#o-ip.info':3085
UDP:
  • DNS ASK 1k#.#o-ip.info
  • '<Private IP address>':1036
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Shell_TrayWnd' WindowName: ''
  • ClassName: '' WindowName: ''
  • ClassName: 'Indicator' WindowName: ''
  • ClassName: 'EDIT' WindowName: ''