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Win32.HLLW.Autoruner.54070

Added to the Dr.Web virus database: 2011-07-12

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'saoub' = '%HOMEPATH%\saoub.exe /e'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'saoub' = '%HOMEPATH%\saoub.exe /Z'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'saoub' = '%HOMEPATH%\saoub.exe /r'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'saoub' = '%HOMEPATH%\saoub.exe /C'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'saoub' = '%HOMEPATH%\saoub.exe /q'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'saoub' = '%HOMEPATH%\saoub.exe /s'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'saoub' = '%HOMEPATH%\saoub.exe /A'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'saoub' = '%HOMEPATH%\saoub.exe /i'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'saoub' = '%HOMEPATH%\saoub.exe /h'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'saoub' = '%HOMEPATH%\saoub.exe /k'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'saoub' = '%HOMEPATH%\saoub.exe /J'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'saoub' = '%HOMEPATH%\saoub.exe /N'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'saoub' = '%HOMEPATH%\saoub.exe /o'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'saoub' = '%HOMEPATH%\saoub.exe /p'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'saoub' = '%HOMEPATH%\saoub.exe /M'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'saoub' = '%HOMEPATH%\saoub.exe /g'
  • [<HKLM>\SYSTEM\ControlSet001\Control\Print\Providers\4055037632] 'Name' = '"%TEMP%\3.tmp"'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'saoub' = '%HOMEPATH%\saoub.exe /t'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'saoub' = '%HOMEPATH%\saoub.exe /w'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'saoub' = '%HOMEPATH%\saoub.exe /d'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'saoub' = '%HOMEPATH%\saoub.exe /L'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'saoub' = '%HOMEPATH%\saoub.exe /f'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'saoub' = '%HOMEPATH%\saoub.exe /B'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'saoub' = '%HOMEPATH%\saoub.exe /U'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'saoub' = '%HOMEPATH%\saoub.exe /Y'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'saoub' = '%HOMEPATH%\saoub.exe /x'
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>:\BBs.ico
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\saoub.exe
  • <Drive name for removable media>:\New Folder.lnk
  • <Drive name for removable media>:\saoubx.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%\pnbat.exe 
  • %HOMEPATH%\saoub.exe 
  • %HOMEPATH%\onbat.exe 
  • %HOMEPATH%\nPCLlle1D1.exe 
  • %HOMEPATH%\acrobat32.exe 
Executes the following:
  • <SYSTEM32>\tasklist.exe
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:
  • %TEMP%\2.tmp
  • %HOMEPATH%\saoub.exe
  • %TEMP%\Rlb..bat
  • %WINDIR%\Temp\4.tmp
  • %HOMEPATH%\acrobat32.dll
  • %HOMEPATH%\nPCLlle1D1.exe
  • %HOMEPATH%\acrobat32.exe
  • %HOMEPATH%\pnbat.exe
  • %HOMEPATH%\onbat.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\saoub.exe
  • <Drive name for removable media>:\saoubx.exe
  • <Drive name for removable media>:\BBs.ico
  • %HOMEPATH%\saoub.exe
  • <Drive name for removable media>:\autorun.inf
Deletes the following files:
  • %HOMEPATH%\nPCLlle1D1.exe
  • %HOMEPATH%\onbat.exe
  • %WINDIR%\Temp\4.tmp
  • %TEMP%\3.tmp
  • <DRIVERS>\etc\hosts
Network activity:
Connects to:
  • 'wi##zz.in':80
TCP:
HTTP POST requests:
  • wi##zz.in/?in##############################################################################################################
UDP:
  • DNS ASK go##le.ae
  • DNS ASK wi##zz.in
  • DNS ASK ik##.com
  • DNS ASK si###ell.com
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: ''
  • ClassName: 'Shell_TrayWnd' WindowName: ''