WIP

Wabbajack.Common/Paths.cs

@@ -331,11 +331,11 @@ namespace Wabbajack.Common
             await fs.WriteAsync(data);
         }
 
-        public async Task WriteAllAsync(Stream data, bool disposeAfter = true)
+        public async Task WriteAllAsync(Stream data, bool disposeDataAfter = true)
         {
             await using var fs = await Create();
             await data.CopyToAsync(fs);
-            if (disposeAfter) await data.DisposeAsync();
+            if (disposeDataAfter) await data.DisposeAsync();
         }
 
         [DllImport("kernel32.dll", SetLastError=true, CharSet=CharSet.Auto)]

Wabbajack.Lib/VirusScanner.cs

@@ -0,0 +1,38 @@
+using System.IO;
+using System.Threading.Tasks;
+using Wabbajack.Common;
+
+namespace Wabbajack.Lib
+{
+    /// <summary>
+    /// Wrapper around Windows Defender's commandline tool
+    /// </summary>
+    public class VirusScanner
+    {
+        public enum Result : int
+        {
+            NotMalware = 0,
+            Malware = 2
+        }
+
+        public static async Task<Result> ScanStream(Stream stream)
+        {
+            await using var file = new TempFile();
+            await file.Path.WriteAllAsync(stream);
+
+            var process = new ProcessHelper()
+            {
+                Path =
+                    (AbsolutePath)@"C:\ProgramData\Microsoft\Windows Defender\Platform\4.18.2006.10-0\X86\MpCmdRun.exe",
+                Arguments = new object[] {"-Scan", "-ScanType", "3", "-DisableRemediation", "-File", file.Path},
+            };
+            
+            return (Result)await process.Start();
+        }
+
+        public static Task<bool> ShouldScan(AbsolutePath path)
+        {
+            
+        }
+    }
+}

Wabbajack.VirtualFileSystem/IndexedVirtualFile.cs

@@ -46,11 +46,13 @@ namespace Wabbajack.VirtualFileSystem
                 Size = br.ReadInt64(),
             };
             var lst = new List<IndexedVirtualFile>();
+            ivf.Children = lst;
             var count = br.ReadInt32();
             for (int x = 0; x < count; x++)
             {
                 lst.Add(Read(br));
             }
+
             return ivf;
         }