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Win32.HLLW.Autoruner.53921

Added to the Dr.Web virus database: 2011-07-10

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'heeoti' = '%HOMEPATH%\heeoti.exe /M'
  • [<HKLM>\SYSTEM\ControlSet001\Control\Print\Providers\825320880] 'Name' = '"%TEMP%\3.tmp"'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Sxikihuvuw' = 'rundll32.exe "%WINDIR%\qsclpmr.dll",Startup'
Creates the following files on removable media:
  • <Drive name for removable media>:\Documents.lnk
  • <Drive name for removable media>:\Passwords.lnk
  • <Drive name for removable media>:\Pictures.lnk
  • <Drive name for removable media>:\Video.lnk
  • <Drive name for removable media>:\Music.lnk
  • <Drive name for removable media>:\vAG.ico
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\heeoti.exe
  • <Drive name for removable media>:\New Folder.lnk
  • <Drive name for removable media>:\heeotix.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
  • hidden files
Creates and executes the following:
  • %HOMEPATH%\wexhost.exe 
  • %HOMEPATH%\heeoti.exe 
  • %HOMEPATH%\zusvc.exe 
  • %HOMEPATH%\ZSzXlarNXai5.exe 
  • %HOMEPATH%\ztsvc.exe 
Executes the following:
  • <SYSTEM32>\rundll32.exe "%WINDIR%\qsclpmr.dll",iep
  • <SYSTEM32>\tasklist.exe
  • <SYSTEM32>\rundll32.exe "%WINDIR%\qsclpmr.dll",Startup
Injects code into
the following system processes:
  • <SYSTEM32>\spoolsv.exe
Modifies settings of Windows Internet Explorer:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1A10' = '00000000'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '{AEBA21FA-782A-4A90-978D-B72164C80120}' = ''
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '{A8A88C49-5EB2-4990-A1A2-0876022C854F}' = ''
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] 'currentlevel' = '00000000'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1601' = '00000000'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1400' = '00000000'
Modifies file system :
Creates the following files:
  • %HOMEPATH%\heeoti.exe
  • %WINDIR%\qsclpmr.dll
  • %WINDIR%\Temp\4.tmp
  • %TEMP%\2.tmp
  • %HOMEPATH%\wexhost.dll
  • %HOMEPATH%\ZSzXlarNXai5.exe
  • %HOMEPATH%\wexhost.exe
  • %HOMEPATH%\zusvc.exe
  • %HOMEPATH%\ztsvc.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\heeoti.exe
  • <Drive name for removable media>:\heeotix.exe
  • <Drive name for removable media>:\vAG.ico
  • %HOMEPATH%\heeoti.exe
  • <Drive name for removable media>:\autorun.inf
Deletes the following files:
  • %WINDIR%\Temp\4.tmp
  • <DRIVERS>\etc\hosts
  • %TEMP%\3.tmp
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: ''
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