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lckt0 committed Oct 24, 2021
1 parent eec51d9 commit fce4420
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54 changes: 54 additions & 0 deletions AfterKoi/AfterKoi.csproj
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<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
<PropertyGroup>
<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
<Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
<ProjectGuid>23c3b079-9b79-41c2-ae44-9c58675c3772</ProjectGuid>
<OutputType>Library</OutputType>
<AppDesignerFolder>Properties</AppDesignerFolder>
<RootNamespace>AfterKoi</RootNamespace>
<AssemblyName>AfterKoi</AssemblyName>
<TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>
<FileAlignment>512</FileAlignment>
<Deterministic>true</Deterministic>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
<DebugSymbols>true</DebugSymbols>
<DebugType>full</DebugType>
<Optimize>false</Optimize>
<OutputPath>bin\Debug\</OutputPath>
<DefineConstants>DEBUG;TRACE</DefineConstants>
<ErrorReport>prompt</ErrorReport>
<WarningLevel>4</WarningLevel>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
<DebugType>pdbonly</DebugType>
<Optimize>true</Optimize>
<OutputPath>bin\Release\</OutputPath>
<DefineConstants>TRACE</DefineConstants>
<ErrorReport>prompt</ErrorReport>
<WarningLevel>4</WarningLevel>
</PropertyGroup>
<ItemGroup>
<Reference Include="System"/>

<Reference Include="System.Core"/>
<Reference Include="System.Xml.Linq"/>
<Reference Include="System.Data.DataSetExtensions"/>


<Reference Include="Microsoft.CSharp"/>

<Reference Include="System.Data"/>

<Reference Include="System.Net.Http"/>

<Reference Include="System.Xml"/>
</ItemGroup>
<ItemGroup>
<Compile Include="Class1.cs" />
<Compile Include="Properties\AssemblyInfo.cs" />
</ItemGroup>
<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
</Project>
65 changes: 65 additions & 0 deletions AfterKoi/LocalToField.cs
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using dnlib.DotNet;
using dnlib.DotNet.Emit;
using Astro_Renewed.Services;
using System.Collections.Generic;
using System.Linq;

namespace Astro_Renewed.Protections
{
internal class LocalToField
{
private static Dictionary<Local, FieldDef> _convertedLocals = new();

public static void Execute(ModuleDef module)
{
foreach (var type in module.Types.Where(x => x != module.GlobalType))
{
foreach (var method2 in type.Methods.Where(x => x.HasBody && x.Body.HasInstructions && !x.IsConstructor))
{
_convertedLocals = new Dictionary<Local, FieldDef>();
Process(module, method2);
}
}
Services.ConsoleLogger.Log("Processing \"Local To Field\" protection.");
}

private static void Process(ModuleDef module, MethodDef method)
{
var instructions = method.Body.Instructions;
foreach (var t in instructions)
{
if (t.Operand is not Local local) continue;
FieldDef def;
if (!_convertedLocals.ContainsKey(local))
{
def = new FieldDefUser(RandomGenerator.randomMD5(), new FieldSig(local.Type), FieldAttributes.Public | FieldAttributes.Static);
module.GlobalType.Fields.Add(def);
_convertedLocals.Add(local, def);
}
else
def = _convertedLocals[local];

var eq = t.OpCode.Code switch
{
Code.Ldloc => OpCodes.Ldsfld,
Code.Ldloc_S => OpCodes.Ldsfld,
Code.Ldloc_0 => OpCodes.Ldsfld,
Code.Ldloc_1 => OpCodes.Ldsfld,
Code.Ldloc_2 => OpCodes.Ldsfld,
Code.Ldloc_3 => OpCodes.Ldsfld,
Code.Ldloca => OpCodes.Ldsflda,
Code.Ldloca_S => OpCodes.Ldsflda,
Code.Stloc => OpCodes.Stsfld,
Code.Stloc_0 => OpCodes.Stsfld,
Code.Stloc_1 => OpCodes.Stsfld,
Code.Stloc_2 => OpCodes.Stsfld,
Code.Stloc_3 => OpCodes.Stsfld,
Code.Stloc_S => OpCodes.Stsfld,
_ => null
};
t.OpCode = eq;
t.Operand = def;
}
}
}
}
36 changes: 36 additions & 0 deletions AfterKoi/Properties/AssemblyInfo.cs
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using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;

// General Information about an assembly is controlled through the following
// set of attributes. Change these attribute values to modify the information
// associated with an assembly.
[assembly: AssemblyTitle("AfterKoi")]
[assembly: AssemblyDescription("")]
[assembly: AssemblyConfiguration("")]
[assembly: AssemblyCompany("")]
[assembly: AssemblyProduct("AfterKoi")]
[assembly: AssemblyCopyright("Copyright © 2021")]
[assembly: AssemblyTrademark("")]
[assembly: AssemblyCulture("")]

// Setting ComVisible to false makes the types in this assembly not visible
// to COM components. If you need to access a type in this assembly from
// COM, set the ComVisible attribute to true on that type.
[assembly: ComVisible(false)]

// The following GUID is for the ID of the typelib if this project is exposed to COM
[assembly: Guid("23c3b079-9b79-41c2-ae44-9c58675c3772")]

// Version information for an assembly consists of the following four values:
//
// Major Version
// Minor Version
// Build Number
// Revision
//
// You can specify all the values or you can default the Build and Revision Numbers
// by using the '*' as shown below:
// [assembly: AssemblyVersion("1.0.*")]
[assembly: AssemblyVersion("1.0.0.0")]
[assembly: AssemblyFileVersion("1.0.0.0")]
42 changes: 42 additions & 0 deletions AfterKoi/RandomGenerator.cs
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using System;
using System.Linq;
using System.Security.Cryptography;
using System.Text;

namespace Astro_Renewed.Services
{
class RandomGenerator
{
private static string ConvertStringtoMD5(string strword)
{
MD5 md5 = MD5.Create();
byte[] inputBytes = System.Text.Encoding.ASCII.GetBytes(strword);
byte[] hash = md5.ComputeHash(inputBytes);
StringBuilder sb = new StringBuilder();
for (int i = 0; i < hash.Length; i++)
{
sb.Append(hash[i].ToString("x2"));
}
return sb.ToString();
}

public static string randomMD5_disable()
{
var bytes = new byte[16];
using (var rng = new RNGCryptoServiceProvider())
{
rng.GetBytes(bytes);
}
return "{" + ConvertStringtoMD5(BitConverter.ToString(bytes)).ToLower() + "}";
}

private static Random random = new Random();

public static string randomMD5()
{
const string chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890";
return new string(Enumerable.Repeat(chars, 10)
.Select(s => s[random.Next(s.Length)]).ToArray());
}
}
}
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// <autogenerated />
using System;
using System.Reflection;
[assembly: global::System.Runtime.Versioning.TargetFrameworkAttribute(".NETFramework,Version=v4.7.2", FrameworkDisplayName = ".NET Framework 4.7.2")]
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70 changes: 70 additions & 0 deletions AstroNet.sln
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Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio Version 16
VisualStudioVersion = 16.0.30621.155
MinimumVisualStudioVersion = 10.0.40219.1
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AstroNet", "AstroNet\AstroNet.csproj", "{171CB9D1-C535-4AEA-BF3C-6F4BA1F2D0DB}"
EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "KoiVM", "KoiVM\KoiVM.csproj", "{9E333771-BC67-4120-9C67-D15311C0F67C}"
EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Runtime", "KoiVM.Runtime\Runtime.csproj", "{1A1DA722-FE8A-4B49-86ED-DC582F0B0B47}"
EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "KoiVM.GUI", "KoiVM.GUI\KoiVM.GUI.csproj", "{F4542E19-6BCA-4FA5-A263-B4419ACACF9A}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug_ThreadSafe|Any CPU = Debug_ThreadSafe|Any CPU
Debug|Any CPU = Debug|Any CPU
Release_ThreadSafe|Any CPU = Release_ThreadSafe|Any CPU
Release|Any CPU = Release|Any CPU
Trace|Any CPU = Trace|Any CPU
EndGlobalSection
GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{171CB9D1-C535-4AEA-BF3C-6F4BA1F2D0DB}.Debug_ThreadSafe|Any CPU.Build.0 = Debug|Any CPU
{171CB9D1-C535-4AEA-BF3C-6F4BA1F2D0DB}.Debug|Any CPU.ActiveCfg = Release|Any CPU
{171CB9D1-C535-4AEA-BF3C-6F4BA1F2D0DB}.Debug|Any CPU.Build.0 = Release|Any CPU
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{9E333771-BC67-4120-9C67-D15311C0F67C}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{9E333771-BC67-4120-9C67-D15311C0F67C}.Trace|Any CPU.ActiveCfg = Trace|Any CPU
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{1A1DA722-FE8A-4B49-86ED-DC582F0B0B47}.Debug|Any CPU.Build.0 = Debug|Any CPU
{1A1DA722-FE8A-4B49-86ED-DC582F0B0B47}.Release_ThreadSafe|Any CPU.ActiveCfg = Release|Any CPU
{1A1DA722-FE8A-4B49-86ED-DC582F0B0B47}.Release_ThreadSafe|Any CPU.Build.0 = Release|Any CPU
{1A1DA722-FE8A-4B49-86ED-DC582F0B0B47}.Release|Any CPU.ActiveCfg = Release|Any CPU
{1A1DA722-FE8A-4B49-86ED-DC582F0B0B47}.Release|Any CPU.Build.0 = Release|Any CPU
{1A1DA722-FE8A-4B49-86ED-DC582F0B0B47}.Trace|Any CPU.ActiveCfg = Trace|Any CPU
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{F4542E19-6BCA-4FA5-A263-B4419ACACF9A}.Trace|Any CPU.Build.0 = Debug|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
EndGlobalSection
GlobalSection(ExtensibilityGlobals) = postSolution
SolutionGuid = {72CEEFF3-9E8A-40BA-8010-74DC8B66E1AC}
EndGlobalSection
EndGlobal
6 changes: 6 additions & 0 deletions AstroNet/App.config
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<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
</startup>
</configuration>
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