Netsh helper dll persistance (#2159)
* default to no reboot * add dll and improve atomic * Update T1546.002.yaml Co-authored-by: Michael Haag <5632822+MHaggis@users.noreply.github.com>
This commit is contained in:
Carrie Roberts
@@ -4,15 +4,30 @@ atomic_tests:
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- name: Netsh Helper DLL Registration
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auto_generated_guid: 3244697d-5a3a-4dfc-941c-550f69f91a4d
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description: |
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Netsh interacts with other operating system components using dynamic-link library (DLL) files
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You can register a "helper dll" with Netsh as a persistance mechanism. The code in the dll is executed every time netsh.exe is called.
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The NetshHelper.dll provided with the atomic will simply launch notepad when netsh.exe is run.
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[Blog](https://htmlpreview.github.io/?https://github.com/MatthewDemaske/blogbackup/blob/master/netshell.html)
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[Sample DLL code](https://github.com/outflanknl/NetshHelperBeacon)
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supported_platforms:
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- windows
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input_arguments:
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helper_file:
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description: Path to DLL
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type: Path
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default: C:\Path\file.dll
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default: PathToAtomicsFolder\T1546.007\bin\NetshHelper.dll
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dependencies:
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- description: |
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Helper DLL must exist on disk at specified location (#{helper_file})
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prereq_command: |
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if (Test-Path "#{helper_file}") { exit 0} else { exit 1}
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get_prereq_command: |
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New-Item -Type Directory (split-path #{helper_file}) -ErrorAction ignore | Out-Null
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Invoke-WebRequest "https://github.com/redcanaryco/atomic-red-team/raw/master/atomics/T1546.007/bin/NetshHelper.dll" -OutFile "#{helper_file}"
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executor:
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command: |
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netsh.exe add helper #{helper_file}
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name: command_prompt
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cleanup_command: |
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netsh.exe delete helper #{helper_file}
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name: command_prompt
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elevation_required: true
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Binary file not shown.
@@ -0,0 +1,26 @@
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Microsoft Visual Studio Solution File, Format Version 11.00
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# Visual Studio 2010
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Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "NetshHelper", "NetshHelper\NetshHelper.vcxproj", "{3BB0CD58-487C-4FEC-8001-607599477158}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Win32 = Debug|Win32
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Debug|x64 = Debug|x64
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Release|Win32 = Release|Win32
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Release|x64 = Release|x64
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{3BB0CD58-487C-4FEC-8001-607599477158}.Debug|Win32.ActiveCfg = Debug|Win32
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{3BB0CD58-487C-4FEC-8001-607599477158}.Debug|Win32.Build.0 = Debug|Win32
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{3BB0CD58-487C-4FEC-8001-607599477158}.Debug|x64.ActiveCfg = Debug|x64
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{3BB0CD58-487C-4FEC-8001-607599477158}.Debug|x64.Build.0 = Debug|x64
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{3BB0CD58-487C-4FEC-8001-607599477158}.Release|Win32.ActiveCfg = Release|Win32
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{3BB0CD58-487C-4FEC-8001-607599477158}.Release|Win32.Build.0 = Release|Win32
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{3BB0CD58-487C-4FEC-8001-607599477158}.Release|x64.ActiveCfg = Release|x64
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{3BB0CD58-487C-4FEC-8001-607599477158}.Release|x64.Build.0 = Release|x64
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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EndGlobal
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@@ -0,0 +1,12 @@
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#include <stdio.h>
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#include <windows.h> // only required if you want to pop calc
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// define the DLL handler 'InitHelpderDll' as required by netsh.
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// See https://msdn.microsoft.com/en-us/library/windows/desktop/ms708327(v=vs.85).aspx
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extern "C" __declspec(dllexport) DWORD InitHelperDll(DWORD dwNetshVersion, PVOID pReserved)
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{
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system ("start notepad");
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// return NO_ERROR is required
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return 0;
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}
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@@ -0,0 +1,153 @@
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<?xml version="1.0" encoding="utf-8"?>
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<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<ItemGroup Label="ProjectConfigurations">
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<ProjectConfiguration Include="Debug|Win32">
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<Configuration>Debug</Configuration>
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<Platform>Win32</Platform>
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</ProjectConfiguration>
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<ProjectConfiguration Include="Debug|x64">
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<Configuration>Debug</Configuration>
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<Platform>x64</Platform>
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</ProjectConfiguration>
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<ProjectConfiguration Include="Release|Win32">
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<Configuration>Release</Configuration>
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<Platform>Win32</Platform>
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</ProjectConfiguration>
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<ProjectConfiguration Include="Release|x64">
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<Configuration>Release</Configuration>
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<Platform>x64</Platform>
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</ProjectConfiguration>
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</ItemGroup>
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<PropertyGroup Label="Globals">
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<ProjectGuid>{3BB0CD58-487C-4FEC-8001-607599477158}</ProjectGuid>
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<Keyword>Win32Proj</Keyword>
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<RootNamespace>NetshHelperBeacon</RootNamespace>
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<ProjectName>NetshHelper</ProjectName>
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</PropertyGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
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<ConfigurationType>DynamicLibrary</ConfigurationType>
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<UseDebugLibraries>true</UseDebugLibraries>
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<CharacterSet>Unicode</CharacterSet>
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<PlatformToolset>v143</PlatformToolset>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
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<ConfigurationType>DynamicLibrary</ConfigurationType>
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<UseDebugLibraries>true</UseDebugLibraries>
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<CharacterSet>Unicode</CharacterSet>
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<PlatformToolset>v143</PlatformToolset>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
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<ConfigurationType>DynamicLibrary</ConfigurationType>
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<UseDebugLibraries>false</UseDebugLibraries>
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<WholeProgramOptimization>true</WholeProgramOptimization>
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<CharacterSet>Unicode</CharacterSet>
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<PlatformToolset>v143</PlatformToolset>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
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<ConfigurationType>DynamicLibrary</ConfigurationType>
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<UseDebugLibraries>false</UseDebugLibraries>
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<WholeProgramOptimization>true</WholeProgramOptimization>
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<CharacterSet>Unicode</CharacterSet>
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<PlatformToolset>v143</PlatformToolset>
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</PropertyGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
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<ImportGroup Label="ExtensionSettings">
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</ImportGroup>
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<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
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<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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</ImportGroup>
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<ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="PropertySheets">
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<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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</ImportGroup>
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<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
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<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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</ImportGroup>
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<ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="PropertySheets">
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<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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</ImportGroup>
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<PropertyGroup Label="UserMacros" />
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
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<LinkIncremental>true</LinkIncremental>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
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<LinkIncremental>true</LinkIncremental>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
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<LinkIncremental>false</LinkIncremental>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
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<LinkIncremental>false</LinkIncremental>
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</PropertyGroup>
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
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<ClCompile>
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<PrecompiledHeader>
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</PrecompiledHeader>
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<WarningLevel>Level3</WarningLevel>
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<Optimization>Disabled</Optimization>
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<PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;_USRDLL;NETSHHELPERBEACON_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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</ClCompile>
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<Link>
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<SubSystem>Windows</SubSystem>
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<GenerateDebugInformation>true</GenerateDebugInformation>
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</Link>
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</ItemDefinitionGroup>
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
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<ClCompile>
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<PrecompiledHeader>
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</PrecompiledHeader>
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<WarningLevel>Level3</WarningLevel>
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<Optimization>Disabled</Optimization>
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<PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;_USRDLL;NETSHHELPERBEACON_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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</ClCompile>
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<Link>
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<SubSystem>Windows</SubSystem>
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<GenerateDebugInformation>true</GenerateDebugInformation>
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</Link>
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</ItemDefinitionGroup>
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
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<ClCompile>
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<WarningLevel>Level3</WarningLevel>
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<PrecompiledHeader>
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</PrecompiledHeader>
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<Optimization>MaxSpeed</Optimization>
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<FunctionLevelLinking>true</FunctionLevelLinking>
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<IntrinsicFunctions>true</IntrinsicFunctions>
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<PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;NETSHHELPERBEACON_EXPORTS;InitHelperDLL;WIN_X86;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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<RuntimeLibrary>MultiThreaded</RuntimeLibrary>
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</ClCompile>
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<Link>
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<SubSystem>Windows</SubSystem>
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<GenerateDebugInformation>true</GenerateDebugInformation>
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<EnableCOMDATFolding>true</EnableCOMDATFolding>
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<OptimizeReferences>true</OptimizeReferences>
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</Link>
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<ProjectReference>
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<LinkLibraryDependencies>false</LinkLibraryDependencies>
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</ProjectReference>
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</ItemDefinitionGroup>
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
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<ClCompile>
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<WarningLevel>Level3</WarningLevel>
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<PrecompiledHeader>
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</PrecompiledHeader>
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<Optimization>MaxSpeed</Optimization>
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<FunctionLevelLinking>true</FunctionLevelLinking>
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<IntrinsicFunctions>true</IntrinsicFunctions>
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<PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;NETSHHELPERBEACON_EXPORTS;InitHelperDLL;WIN_X64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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<RuntimeLibrary>MultiThreaded</RuntimeLibrary>
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</ClCompile>
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<Link>
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<SubSystem>Windows</SubSystem>
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<GenerateDebugInformation>true</GenerateDebugInformation>
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<EnableCOMDATFolding>true</EnableCOMDATFolding>
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<OptimizeReferences>true</OptimizeReferences>
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</Link>
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</ItemDefinitionGroup>
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<ItemGroup>
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<ClCompile Include="NetshHelper.cpp" />
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</ItemGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
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<ImportGroup Label="ExtensionTargets">
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</ImportGroup>
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</Project>
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@@ -0,0 +1,22 @@
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<?xml version="1.0" encoding="utf-8"?>
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<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<ItemGroup>
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<Filter Include="Source Files">
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<UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
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<Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
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</Filter>
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<Filter Include="Header Files">
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<UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
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<Extensions>h;hpp;hxx;hm;inl;inc;xsd</Extensions>
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</Filter>
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<Filter Include="Resource Files">
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<UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
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<Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
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</Filter>
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</ItemGroup>
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<ItemGroup>
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<ClCompile Include="NetshHelper.cpp">
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<Filter>Source Files</Filter>
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</ClCompile>
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</ItemGroup>
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</Project>
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@@ -0,0 +1,3 @@
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<?xml version="1.0" encoding="utf-8"?>
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<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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</Project>
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