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Win32.HLLW.Autoruner.58998

Added to the Dr.Web virus database: 2011-09-15

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\ebdcabecabeded] 'Startup' = 'sup'
  • [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\ebdcabecabeded] 'Logon' = 'l'
  • [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\ebdcabecabeded] 'DllName' = '<SYSTEM32>\ebdcabecabeded.dll'
Malicious functions:
Executes the following:
  • %PROGRAM_FILES%\Internet Explorer\IEXPLORE.EXE http://wl.##adrss.org/v307/repins.rss?ms########################################################################################################################################
  • <SYSTEM32>\cmd.exe /c "%TEMP%\c1514be2d5e124eba5d6850ec75ea1b2.bat"
Injects code into
the following system processes:
  • <SYSTEM32>\winlogon.exe
Modifies file system :
Creates the following files:
  • <SYSTEM32>\RCX1.tmp
  • %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\69I9OPW5\repins[1].rss
  • %TEMP%\c1514be2d5e124eba5d6850ec75ea1b2.bat
  • <SYSTEM32>\ebdcabecabeded.dll
Deletes the following files:
  • <SYSTEM32>\ebdcabecabeded.dll
Deletes itself.
Network activity:
Connects to:
  • 'wl.##adrss.org':80
  • 'localhost':1035
TCP:
HTTP GET requests:
  • wl.##adrss.org/v307/repins.rss?ms########################################################################################################################################
UDP:
  • DNS ASK wl.##adrss.org
Miscellaneous:
Searches for the following windows:
  • ClassName: 'MS_AutodialMonitor' WindowName: ''
  • ClassName: 'MS_WebcheckMonitor' WindowName: ''
  • ClassName: '' WindowName: ''
  • ClassName: 'Shell_TrayWnd' WindowName: ''
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