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Win32.HLLW.Autoruner.26143
Added to the Dr.Web virus database:
2013-12-18
Virus description added:
2013-12-21
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Torjan Program' = '%WINDIR%\WINLOGON.EXE'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'Explorer.exe 1'
[<HKLM>\SOFTWARE\Classes\HTTP\shell\open\command] '' = '"%PROGRAM_FILES%\common~1\iexplore.pif" -nohome'
[<HKLM>\SOFTWARE\Clients\StartMenuInternet\iexplore.pif\shell\open\command] '' = '"%PROGRAM_FILES%\common~1\iexplore.pif"'
[<HKLM>\SOFTWARE\Classes\.exe] '' = 'winfiles'
[<HKLM>\SOFTWARE\Classes\winfiles\Shell\Open\Command] '' = '%WINDIR%\ExERoute.exe "%1" %*'
[<HKLM>\SOFTWARE\Classes\telnet\shell\open\command] '' = 'finder.com url.dll,TelnetProtocolHandler %l'
[<HKLM>\SOFTWARE\Classes\InternetShortcut\shell\open\command] '' = 'finder.com shdocvw.dll,OpenURL %l'
[<HKLM>\SOFTWARE\Classes\dunfile\shell\open\command] '' = '%SystemRoot%\system32\rundll32.com NETSHELL.DLL,InvokeDunFile %1'
[<HKLM>\SOFTWARE\Classes\ftp\shell\open\command] '' = '"%PROGRAM_FILES%\Internet Explorer\iexplore.com" %1'
[<HKLM>\SOFTWARE\Classes\Applications\iexplore.exe\shell\open\command] '' = '"%PROGRAM_FILES%\Internet Explorer\iexplore.com" %1'
[<HKLM>\SOFTWARE\Classes\htmlfile\shell\open\command] '' = '"%PROGRAM_FILES%\Internet Explorer\iexplore.com" -nohome'
Malicious functions:
Creates and executes the following:
Modifies file system :
Creates the following files:
<SYSTEM32>\MSCONFIG.COM
%WINDIR%\ExERoute.exe
%WINDIR%\1.com
<SYSTEM32>\dxdiag.com
%WINDIR%\Debug\DebugProgram.exe
<SYSTEM32>\regedit.com
%WINDIR%\explorer.com
<SYSTEM32>\finder.com
<SYSTEM32>\rundll32.com
%WINDIR%\WINLOGON.EXE
%WINDIR%\finder.com
%CommonProgramFiles%\iexplore.pif
%PROGRAM_FILES%\Internet Explorer\iexplore.com
<SYSTEM32>\command.pif
Sets the 'hidden' attribute to the following files:
%WINDIR%\ExERoute.exe
%WINDIR%\explorer.com
%CommonProgramFiles%\iexplore.pif
<SYSTEM32>\regedit.com
<SYSTEM32>\dxdiag.com
<SYSTEM32>\MSCONFIG.COM
<SYSTEM32>\finder.com
<SYSTEM32>\rundll32.com
%WINDIR%\WINLOGON.EXE
%PROGRAM_FILES%\Internet Explorer\iexplore.com
%WINDIR%\finder.com
<SYSTEM32>\command.pif
Miscellaneous:
Searches for the following windows:
ClassName: 'MS_WINHELP' WindowName: '(null)'
ClassName: '(null)' WindowName: '53589793238462643383279'
ClassName: '(null)' WindowName: 'ifyoudothatagainiwillkickyourass'
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