refactoring and adding clamav scanning backend

MalwareMultiScan.Backends/Backends/Implementations/WindowsDefenderScanBackend.cs

@@ -1,5 +1,4 @@
 using System;
-using System.Diagnostics;
 using System.IO;
 using System.Text.RegularExpressions;
 using MalwareMultiScan.Backends.Backends.Abstracts;
@@ -9,22 +8,26 @@ namespace MalwareMultiScan.Backends.Backends.Implementations
 {
     public class WindowsDefenderScanBackend : AbstractLocalProcessScanBackend
     {
+        public WindowsDefenderScanBackend(ILogger logger) : base(logger)
+        {
+        }
+
         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", 
+
+        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)
+        protected override string GetBackendArguments(string path)
         {
+            return path;
         }
     }
 }