Win32.HLLW.Autoruner1.27176
Added to the Dr.Web virus database:
2012-10-05
Virus description added:
2012-10-17
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Command Processor] 'Autorun' = '<SYSTEM32>\CMD.BAT'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Userinit' = '<SYSTEM32>\userinit.exe, "%WINDIR%\csrss.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\Mr.Bean On Show.AVI.exe
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\COMMAND.EXE
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
Executes the following:
- %WINDIR%\explorer.exe /e,/select, <Virus name>.exe
Terminates or attempts to terminate
the following system processes:
Modifies settings of Windows Explorer:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NofolderOptions' = '00000001'
Modifies settings of Windows Internet Explorer:
- [<HKCU>\Software\Microsoft\Internet Explorer\Main] 'Window Title' = 'Microsoft Internet Explorer :-)'
Sets a new unauthorized home page for Windows Internet Explorer.
Modifies file system :
Creates the following files:
- %ALLUSERSPROFILE%\Documents\Mr.Bean On Show.AVI.exe
- C:\Mr.Bean On Show.AVI.exe
- %ALLUSERSPROFILE%\Start Menu\Programs\Funny Mr.Bean.AVI.exe
- %HOMEPATH%\My Documents\Mr.Bean On Show.AVI.exe
- %ALLUSERSPROFILE%\Start Menu\Funny Mr.Bean.AVI.exe
- C:\autorun.inf
- %WINDIR%\csrss.exe
- %WINDIR%\COMMAND.EXE
- <Current directory>\autorun.inf
- C:\COMMAND.EXE
- <SYSTEM32>\CMD.BAT
Sets the 'hidden' attribute to the following files:
- <SYSTEM32>\CMD.BAT
- C:\autorun.inf
- <Drive name for removable media>:\autorun.inf
- %WINDIR%\COMMAND.EXE
- %WINDIR%\csrss.exe
- <Current directory>\autorun.inf
Deletes the following files:
- %ALLUSERSPROFILE%\Documents\Mr.Bean On Show.AVI.exe
- <Drive name for removable media>:\Mr.Bean On Show.AVI.exe
- C:\Mr.Bean On Show.AVI.exe
- %HOMEPATH%\My Documents\Mr.Bean On Show.AVI.exe
- %ALLUSERSPROFILE%\Start Menu\Funny Mr.Bean.AVI.exe
- %ALLUSERSPROFILE%\Start Menu\Programs\Funny Mr.Bean.AVI.exe
- C:\COMMAND.EXE
- %WINDIR%\csrss.exe
- %WINDIR%\COMMAND.EXE
- <Drive name for removable media>:\autorun.inf
- C:\autorun.inf
- <Drive name for removable media>:\COMMAND.EXE
Miscellaneous:
Searches for the following windows:
- ClassName: '' WindowName: 'GINA Logon'
- ClassName: '' WindowName: ''
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