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Win32.HLLW.Autoruner1.13528
Added to the Dr.Web virus database:
2012-03-16
Virus description added:
2012-04-06
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'AdobeUpdateSheduler' = '%WINDIR%\Driver Cache\i386\sys.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'SunJavaUpdateDlr' = '%WINDIR%\dllhost.exe'
Creates the following files on removable media:
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\PORN,PICS,MOVIEZ,LINKS,MUSIC,ETC....exe
<Drive name for removable media>:\1530571.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%WINDIR%\dllhost.exe' = '%WINDIR%\dllhost.exe:*:Enabled:Microsoft Update Sheduler'
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<Full path to virus>' = '<Full path to virus>:*:Enabled:Microsoft Update Sheduler'
Creates and executes the following:
Modifies file system :
Creates the following files:
%WINDIR%\repair\driver.bak
%WINDIR%\CRACK,KEYGEN,SETUP,INSTALLATION,README.ETC...EXE
%WINDIR%\tmp.gif
%WINDIR%\repair\dumb.log
%WINDIR%\dllhost.exe
%WINDIR%\Driver Cache\i386\sys.exe
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\boi23[1].swf
Sets the 'hidden' attribute to the following files:
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\1530571.exe
Deletes the following files:
%WINDIR%\CRACK,KEYGEN,SETUP,INSTALLATION,README.ETC...EXE
Network activity:
Connects to:
'www.ag######ariaarcanjo.com.br':80
TCP:
HTTP GET requests:
www.ag######ariaarcanjo.com.br/boi23.swf
UDP:
DNS ASK www.ag######ariaarcanjo.com.br
'<Private IP address>':1038
Miscellaneous:
Searches for the following windows:
ClassName: 'MS_WINHELP' WindowName: ''
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