update sharp token

.gitignore

@@ -1,3 +1,5 @@
 /.vs/
 /bin/
-/obj/
+/obj/
+GodPotato.csproj.user
+app.config

GodPotato.csproj

@@ -5,7 +5,7 @@
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <ProjectGuid>{2AE886C3-3272-40BE-8D3C-EBAEDE9E61E1}</ProjectGuid>
-    <OutputType>Exe</OutputType>
+    <OutputType>Library</OutputType>
     <RootNamespace>GodPotato</RootNamespace>
     <AssemblyName>GodPotato</AssemblyName>
     <TargetFrameworkVersion>v2.0</TargetFrameworkVersion>
@@ -32,6 +32,9 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
+  <PropertyGroup>
+    <StartupObject />
+  </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />
     <Reference Include="System.Data" />

NativeAPI/NativeMethods.cs

@@ -158,6 +158,10 @@ namespace GodPotato.NativeAPI
             public IntPtr /* PMIDL_SYNTAX_INFO */ pSyntaxInfo;
         }
 
+        void aa() { 
+            
+        }
+
 
         [DllImport("kernel32.dll", SetLastError = true)]
         public static extern bool VirtualProtect([In] IntPtr pBlock,[In] uint size,[In] uint newProtect,[Out] out uint oldProtect);

SharpToken.cs

@@ -693,6 +693,8 @@ namespace SharpToken
 
         public bool IsClose { get; private set; }
 
+        private static readonly List<string> blackGroupSid = new List<string>();
+
         private ProcessToken()
         {
 
@@ -813,15 +815,29 @@ namespace SharpToken
 
                 for (int i = 0; i < groupCount; i++)
                 {
-                    try
+                    lock (blackGroupSid)
                     {
-                        securityIdentifier = new SecurityIdentifier(Marshal.ReadIntPtr(new IntPtr(tokenUserPtr.ToInt64() + offset)));
-                        offset += Marshal.SizeOf(typeof(SID_AND_ATTRIBUTES));
-                        goups.Add(securityIdentifier.Translate(typeof(NTAccount)).Value);
-                    }
-                    catch (Exception e)
-                    {
-                        continue;
+                        try
+                        {
+                            securityIdentifier = new SecurityIdentifier(Marshal.ReadIntPtr(new IntPtr(tokenUserPtr.ToInt64() + offset)));
+                            offset += Marshal.SizeOf(typeof(SID_AND_ATTRIBUTES));
+
+                            if (blackGroupSid.Contains(securityIdentifier.Value))
+                            {
+                                continue;
+                            }
+
+                            goups.Add(securityIdentifier.Translate(typeof(NTAccount)).Value);
+                        }
+                        catch (Exception e)
+                        {
+                            if (securityIdentifier != null)
+                            {
+                                blackGroupSid.Add(securityIdentifier.Value);
+                            }
+
+                            continue;
+                        }
                     }
                 }
                 Marshal.FreeHGlobal(tokenUserPtr);