initial commit of a worker skeleton

MalwareMultiScan.Backends/Backends/Implementations/WindowsDefenderScanBackend.cs

@@ -0,0 +1,30 @@
+using System;
+using System.Diagnostics;
+using System.IO;
+using System.Text.RegularExpressions;
+using MalwareMultiScan.Backends.Backends.Abstracts;
+using Microsoft.Extensions.Logging;
+
+namespace MalwareMultiScan.Backends.Backends.Implementations
+{
+    public class WindowsDefenderScanBackend : AbstractLocalProcessScanBackend
+    {
+        public override string Name { get; } = "Windows Defender";
+
+        public override DateTime DatabaseLastUpdate =>
+            File.GetLastWriteTime("/opt/engine/mpavbase.vdm");
+
+        protected override string BackendPath { get; } = "/opt/mpclient";
+        protected override Regex MatchRegex { get; } = 
+            new Regex(@"EngineScanCallback\(\)\: Threat (?<threat>[\S]+) identified", 
+                RegexOptions.Compiled | RegexOptions.Multiline);
+        
+        protected override bool ParseStdErr { get; } = true;
+
+        protected override string GetBackendArguments(string path) => path;
+
+        public WindowsDefenderScanBackend(ILogger logger) : base(logger)
+        {
+        }
+    }
+}