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Win32.HLLW.Autoruner2.2433
Added to the Dr.Web virus database:
2014-01-21
Virus description added:
2014-01-22
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '2fa3c6431836b780b6d41799bcf9eab3' = '"%TEMP%\suc.exe" ..'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '2fa3c6431836b780b6d41799bcf9eab3' = '"%TEMP%\suc.exe" ..'
Creates or modifies the following files:
%HOMEPATH%\Start Menu\Programs\Startup\2fa3c6431836b780b6d41799bcf9eab3.exe
Creates the following files on removable media:
<Drive name for removable media>:\2fa3c6431836b780b6d41799bcf9eab3.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\suc.exe' = '%TEMP%\suc.exe:*:Enabled:suc.exe'
Creates and executes the following:
Executes the following:
'<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\suc.exe" "suc.exe" ENABLE
Modifies file system :
Creates the following files:
%WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch.new
%WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch.new
%TEMP%\suc.exe
Sets the 'hidden' attribute to the following files:
<Drive name for removable media>:\2fa3c6431836b780b6d41799bcf9eab3.exe
Moves the following files:
from %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch.new to %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch
from %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch.new to %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch
Network activity:
Connects to:
'fo####il.zapto.org':1177
UDP:
DNS ASK fo####il.zapto.org
Miscellaneous:
Searches for the following windows:
ClassName: 'Indicator' WindowName: '(null)'
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