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Profil

Win32.HLLW.Autoruner.51971

Added to the Dr.Web virus database: 2011-06-17

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'nod32update' = '<SYSTEM32>\nod32krn.exe'
Creates the following files on removable media:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\RECYCLER\NOD32_Update.exe
Malicious functions:
Executes the following:
  • <SYSTEM32>\ntvdm.exe -f -i4
  • <SYSTEM32>\ntvdm.exe -f -i3
  • <SYSTEM32>\ntvdm.exe -f -i6
  • <SYSTEM32>\ntvdm.exe -f -i5
  • <SYSTEM32>\taskkill.exe /IM sslmsc.exe /F
  • <SYSTEM32>\regsvr32.exe <SYSTEM32>\mfncom.dll /s
  • <SYSTEM32>\taskkill.exe /IM winlogger.exe /F
  • <SYSTEM32>\ntvdm.exe -f -i2
  • <SYSTEM32>\ntvdm.exe -f -i1
Modifies file system :
Creates the following files:
  • %WINDIR%\Temp\scs7.tmp
  • %WINDIR%\Temp\scs8.tmp
  • %WINDIR%\Temp\scs9.tmp
  • %WINDIR%\Temp\scs5.tmp
  • <SYSTEM32>\nod32krn.exe
  • %WINDIR%\Temp\scs6.tmp
  • %TEMP%\49828.30286026.tmp
  • C:\RECYCLER\NOD32_Update.exe
  • C:\autorun.inf
  • %WINDIR%\Temp\scsA.tmp
  • %WINDIR%\Temp\scsB.tmp
  • %WINDIR%\Temp\scsC.tmp
  • %WINDIR%\Temp\scs4.tmp
  • <SYSTEM32>\mfncom.dll
  • <SYSTEM32>\mfnhks32.dll
  • <SYSTEM32>\mfnsp32.dll
  • %TEMP%\225.03137588501.tmp
  • %TEMP%\csrss.exe
  • %TEMP%\56316.339969635.tmp
  • %WINDIR%\Temp\scs1.tmp
  • %WINDIR%\Temp\scs2.tmp
  • %WINDIR%\Temp\scs3.tmp
  • <SYSTEM32>\mfnspinst32.exe
  • <SYSTEM32>\mfnsvc.exe
  • <SYSTEM32>\sslmsc.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\RECYCLER\NOD32_Update.exe
  • C:\RECYCLER\NOD32_Update.exe
Deletes the following files:
  • %WINDIR%\Temp\scsA.tmp
  • %WINDIR%\Temp\scsB.tmp
  • %WINDIR%\Temp\scs9.tmp
  • %WINDIR%\Temp\scs7.tmp
  • %WINDIR%\Temp\scsC.tmp
  • C:\autorun.inf
  • <Drive name for removable media>:\autorun.inf
  • C:\RECYCLER\NOD32_Update.exe
  • <Drive name for removable media>:\RECYCLER\NOD32_Update.exe
  • %WINDIR%\Temp\scs3.tmp
  • %WINDIR%\Temp\scs1.tmp
  • %TEMP%\csrss.exe
  • %WINDIR%\Temp\scs2.tmp
  • %WINDIR%\Temp\scs4.tmp
  • %WINDIR%\Temp\scs8.tmp
  • %WINDIR%\Temp\scs6.tmp
  • <SYSTEM32>\nod32krn.exe
  • %WINDIR%\Temp\scs5.tmp
Network activity:
Connects to:
  • 'www.dd##do1.com':80
TCP:
HTTP POST requests:
  • www.dd##do1.com/ecb.php?cb############################
UDP:
  • DNS ASK www.dd##do1.com
Miscellaneous:
Searches for the following windows:
  • ClassName: 'ConsoleWindowClass' WindowName: 'ntvdm-ba0.ba4.3f0009'
  • ClassName: 'ConsoleWindowClass' WindowName: 'ntvdm-b90.b94.3e0008'
  • ClassName: 'ConsoleWindowClass' WindowName: 'ntvdm-be0.be4.420006'
  • ClassName: 'ConsoleWindowClass' WindowName: 'ntvdm-bb0.bb8.40000a'
  • ClassName: 'ConsoleWindowClass' WindowName: 'ntvdm-b4c.b50.3b0005'
  • ClassName: 'Shell_traywnd' WindowName: ''
  • ClassName: '' WindowName: ''
  • ClassName: 'ConsoleWindowClass' WindowName: 'ntvdm-b54.b58.3c0006'

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