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Win32.HLLW.Autoruner.47764

Added to the Dr.Web virus database: 2011-04-16

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xioho' = '%HOMEPATH%\xioho.exe /W'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xioho' = '%HOMEPATH%\xioho.exe /v'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xioho' = '%HOMEPATH%\xioho.exe /E'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xioho' = '%HOMEPATH%\xioho.exe /G'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xioho' = '%HOMEPATH%\xioho.exe /i'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xioho' = '%HOMEPATH%\xioho.exe /T'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xioho' = '%HOMEPATH%\xioho.exe /u'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xioho' = '%HOMEPATH%\xioho.exe /K'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xioho' = '%HOMEPATH%\xioho.exe /o'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xioho' = '%HOMEPATH%\xioho.exe /R'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xioho' = '%HOMEPATH%\xioho.exe /Q'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xioho' = '%HOMEPATH%\xioho.exe /y'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xioho' = '%HOMEPATH%\xioho.exe /C'
  • [<HKLM>\SYSTEM\ControlSet001\Control\Print\Providers\715770840] 'Name' = '%TEMP%\2.tmp'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xioho' = '%HOMEPATH%\xioho.exe /b'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xioho' = '%HOMEPATH%\xioho.exe /z'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xioho' = '%HOMEPATH%\xioho.exe /S'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xioho' = '%HOMEPATH%\xioho.exe /A'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xioho' = '%HOMEPATH%\xioho.exe /m'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'xioho' = '%HOMEPATH%\xioho.exe /D'
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>:\ZsdK.ico
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\xioho.exe
  • <Drive name for removable media>:\New Folder.lnk
  • <Drive name for removable media>:\xiohox.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:
  • %TEMP%\7ZipSfx.000\lmn.exe
  • %TEMP%\7ZipSfx.000\lmno.exe
  • %TEMP%\7ZipSfx.000\JuYzaRUcxwUkxyIHhTKOaSemXykdrFZSGV.exe
  • %HOMEPATH%\xioho.exe
Executes the following:
  • <SYSTEM32>\cmd.exe /c ""%TEMP%\7ZSfx000.cmd" "
  • <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] '1400' = '00000000'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1601' = '00000000'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] 'currentlevel' = '00000000'
Modifies file system :
Creates the following files:
  • %WINDIR%\Temp\3.tmp
  • %TEMP%\1.tmp
  • %TEMP%\7ZSfx000.cmd
  • %TEMP%\Aqz..bat
  • %TEMP%\7ZipSfx.000\lmn.exe
  • %TEMP%\7ZipSfx.000\JuYzaRUcxwUkxyIHhTKOaSemXykdrFZSGV.exe
  • %HOMEPATH%\xioho.exe
  • %TEMP%\7ZipSfx.000\lmno.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\xioho.exe
  • <Drive name for removable media>:\xiohox.exe
  • <Drive name for removable media>:\ZsdK.ico
  • %HOMEPATH%\xioho.exe
  • <Drive name for removable media>:\autorun.inf
Deletes the following files:
  • %TEMP%\7ZipSfx.000\JuYzaRUcxwUkxyIHhTKOaSemXykdrFZSGV.exe
  • %TEMP%\7ZipSfx.000\lmno.exe
  • %TEMP%\7ZSfx000.cmd
  • %TEMP%\2.tmp
  • <DRIVERS>\etc\hosts
  • %WINDIR%\Temp\3.tmp
Moves the following files:
  • from %TEMP%\7ZipSfx.000\lmn.exe to %TEMP%\4.tmp
  • from %TEMP%\1.tmp to %TEMP%\2.tmp
Deletes itself.
Network activity:
Connects to:
  • 'fe####idgenet.in':80
UDP:
  • DNS ASK fe####idgenet.in
  • DNS ASK na##d.ru
  • DNS ASK go##le.at
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: ''
  • ClassName: 'Shell_TrayWnd' WindowName: ''