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Win32.HLLW.Autoruner1.11066
Added to the Dr.Web virus database:
2012-01-21
Virus description added:
2012-01-21
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'dIlhost.exe' = '<SYSTEM32>\dIlhost.exe'
Creates the following files on removable media:
<Drive name for removable media>:\autorun.inf
Malicious functions:
Executes the following:
<SYSTEM32>\ntvdm.exe -f -i1
<SYSTEM32>\reg.exe Add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ /v dIlhost.exe /t REG_SZ /d <SYSTEM32>\dIlhost.exe /f
Modifies file system :
Creates the following files:
%WINDIR%\Temp\scs1.tmp
%WINDIR%\Temp\scs2.tmp
C:\setup.exe
C:\autorun.inf
Sets the 'hidden' attribute to the following files:
<Drive name for removable media>:\autorun.inf
C:\autorun.inf
Deletes the following files:
%WINDIR%\Temp\scs2.tmp
C:\setup.exe
%WINDIR%\Temp\scs1.tmp
C:\autorun.inf
<Drive name for removable media>:\autorun.inf
Miscellaneous:
Searches for the following windows:
ClassName: 'ConsoleWindowClass' WindowName: 'ntvdm-b70.b74.390001'
ClassName: '' WindowName: ''
ClassName: '' WindowName: 'dIlhost'
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