Win32.HLLW.Autoruner1.29416

Added to the Dr.Web virus database: 2012-11-08

Virus description added: 2012-11-09

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Svchost' = '<Full path to virus>'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '1Scar۞Face Crypter' = '%APPDATA%\<Virus name>.exe'

Creates the following files on removable media:

Malicious functions:

To bypass firewall, removes or modifies the following registry keys:

[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'EnableFirewall' = '00000000'

To complicate detection of its presence in the operating system,

blocks execution of the following system utilities:

Executes the following:

<SYSTEM32>\netsh.exe firewall add portopening UDP 138 blah enable subnet
<SYSTEM32>\netsh.exe firewall add portopening UDP 137 blah enable subnet
<SYSTEM32>\netsh.exe firewall add portopening TCP 139 blah enable subnet
%WINDIR%\Microsoft.NET\Framework\v2.0.50727\vbc.exe
<SYSTEM32>\netsh.exe firewall add portopening TCP 445 blah enable subnet
<SYSTEM32>\reg.exe add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoFolderOptions /t REG_DWORD /d 1 /f
<SYSTEM32>\reg.exe add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
<SYSTEM32>\reg.exe add HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoFolderOptions /t REG_DWORD /d 1 /f
<SYSTEM32>\netsh.exe Firewall set service REMOTEDESKTOP
<SYSTEM32>\netsh.exe Firewall set opmod disable

Modifies settings of Windows Explorer:

[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer] 'NoFolderOptions' = '00000001'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoFolderOptions' = '00000001'

Modifies file system :

Creates the following files:

Sets the 'hidden' attribute to the following files:

Miscellaneous:

Searches for the following windows: