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Win32.HLLW.Autoruner.46602

Added to the Dr.Web virus database: 2012-09-07

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'soe3' = '<SYSTEM32>\Startup.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'soe4' = '%WINDIR%\%USERNAME%1.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Userinit' = '<SYSTEM32>\userinit.exe,<SYSTEM32>\welcome.com'
  • [<HKLM>\SOFTWARE\Classes\.bat] '' = 'virus'
  • [<HKLM>\SOFTWARE\Classes\.cmd] '' = 'virus'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'soe1' = '<SYSTEM32>\%USERNAME%small.exe'
Creates or modifies the following files:
  • %ALLUSERSPROFILE%\Start Menu\Programs\Startup\Startup.exe
  • %HOMEPATH%\Start Menu\Programs\Startup\Startup.exe
Creates the following files on removable media:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\photo\photo.jpg.exe
  • <Drive name for removable media>:\For you.jpg.exe
  • <Drive name for removable media>:\Loikawhacking.com
  • <Drive name for removable media>:\Top model.jpg.exe
  • <Drive name for removable media>:\photo\For you.jpg.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
  • hidden files
  • file extensions
blocks execution of the following system utilities:
  • Windows Task Manager (Taskmgr)
  • Registry Editor (RegEdit)
Creates and executes the following:
  • <SYSTEM32>\welcome.com
  • <SYSTEM32>\%USERNAME%small.exe
  • %WINDIR%\%USERNAME%1.exe
Modifies settings of Windows Explorer:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoFolderOptions' = '00000001'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoFind' = '00000001'
Forces autoplay for removable media.
Modifies file system :
Creates the following files:
  • <LS_APPDATA>\Microsoft\CD Burning\autorun.inf
  • <LS_APPDATA>\Microsoft\CD Burning\photo.exe
  • C:\autorun.inf
  • C:\ntldr.pif
  • C:\Documents and Settings\Default User\Start Menu\Programs\Startup\Startup.exe
  • <SYSTEM32>\%USERNAME%small.exe
  • %WINDIR%\%USERNAME%1.exe
  • <SYSTEM32>\welcome.com
  • <SYSTEM32>\Startup.exe
Sets the 'hidden' attribute to the following files:
  • <LS_APPDATA>\Microsoft\CD Burning\autorun.inf
  • <LS_APPDATA>\Microsoft\CD Burning\photo.exe
  • C:\Documents and Settings\Default User\Start Menu\Programs\Startup\Startup.exe
  • C:\autorun.inf
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\Loikawhacking.com
  • %HOMEPATH%\Start Menu\Programs\Startup\Startup.exe
  • <SYSTEM32>\%USERNAME%small.exe
  • %WINDIR%\%USERNAME%1.exe
  • %ALLUSERSPROFILE%\Start Menu\Programs\Startup\Startup.exe
  • <SYSTEM32>\welcome.com
  • <SYSTEM32>\Startup.exe
Deletes the following files:
  • %WINDIR%\%USERNAME%1.exe
  • C:\Documents and Settings\Default User\Start Menu\Programs\Startup\Startup.exe
  • C:\ntldr.pif
  • <SYSTEM32>\welcome.com
  • <SYSTEM32>\%USERNAME%small.exe
  • %HOMEPATH%\Start Menu\Programs\Startup\Startup.exe
  • <SYSTEM32>\Startup.exe
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Shell_TrayWnd' WindowName: ''