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Win32.HLLW.Autoruner2.4738
Added to the Dr.Web virus database:
2014-02-02
Virus description added:
2014-02-04
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '232ed0ba5c06b31fade4648abc401bd6' = '"%WINDIR%\iexplorer.exe" ..'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '232ed0ba5c06b31fade4648abc401bd6' = '"%WINDIR%\iexplorer.exe" ..'
Creates or modifies the following files:
%HOMEPATH%\Start Menu\Programs\Startup\232ed0ba5c06b31fade4648abc401bd6.exe
%HOMEPATH%\Start Menu\Programs\Startup\Server22.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%WINDIR%\iexplorer.exe' = '%WINDIR%\iexplorer.exe:*:Enabled:iexplorer.exe'
Creates and executes the following:
'%WINDIR%\iexplorer.exe'
'%TEMP%\ProGram22.exe'
'%TEMP%\Server22.exe'
Executes the following:
'<SYSTEM32>\netsh.exe' firewall add allowedprogram "%WINDIR%\iexplorer.exe" "iexplorer.exe" ENABLE
Modifies file system :
Creates the following files:
%TEMP%\ProGram22.exe
%WINDIR%\iexplorer.exe
%TEMP%\aut2.tmp
%TEMP%\aut1.tmp
%TEMP%\Server22.exe
Deletes the following files:
%TEMP%\aut2.tmp
%TEMP%\aut1.tmp
Network activity:
Connects to:
UDP:
DNS ASK xi####l.no-ip.biz
Miscellaneous:
Searches for the following windows:
ClassName: 'Indicator' WindowName: '(null)'
ClassName: 'Shell_TrayWnd' WindowName: '(null)'
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