diff --git a/de4dot.code/de4dot.code.csproj b/de4dot.code/de4dot.code.csproj
index a3c92e77..5e2d54b6 100644
--- a/de4dot.code/de4dot.code.csproj
+++ b/de4dot.code/de4dot.code.csproj
@@ -67,6 +67,7 @@
     <Compile Include="deobfuscators\Babel_NET\MemberReferenceConverter.cs" />
     <Compile Include="deobfuscators\Babel_NET\MethodBodyReader.cs" />
     <Compile Include="deobfuscators\Babel_NET\MethodReferenceReader.cs" />
+    <Compile Include="deobfuscators\CryptoObfuscator\CoUtils.cs" />
     <Compile Include="deobfuscators\dotNET_Reactor\v4\ProxyCallFixer.cs" />
     <Compile Include="deobfuscators\ILProtector\MethodReader.cs" />
     <Compile Include="deobfuscators\ILProtector\MethodsDecrypter.cs" />
diff --git a/de4dot.code/deobfuscators/CryptoObfuscator/CoUtils.cs b/de4dot.code/deobfuscators/CryptoObfuscator/CoUtils.cs
new file mode 100644
index 00000000..d3f37981
--- /dev/null
+++ b/de4dot.code/deobfuscators/CryptoObfuscator/CoUtils.cs
@@ -0,0 +1,50 @@
+/*
+    Copyright (C) 2011-2012 de4dot@gmail.com
+
+    This file is part of de4dot.
+
+    de4dot is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    de4dot is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with de4dot.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+using Mono.Cecil;
+using de4dot.blocks;
+
+namespace de4dot.code.deobfuscators.CryptoObfuscator {
+	static class CoUtils {
+		public static EmbeddedResource getResource(ModuleDefinition module, MethodDefinition method) {
+			if (method == null || method.Body == null)
+				return null;
+			return getResource(module, DotNetUtils.getCodeStrings(method));
+		}
+
+		public static EmbeddedResource getResource(ModuleDefinition module, IEnumerable<string> names) {
+			foreach (var name in names) {
+				var resource = DotNetUtils.getResource(module, name) as EmbeddedResource;
+				if (resource != null)
+					return resource;
+				try {
+					resource = DotNetUtils.getResource(module, Encoding.UTF8.GetString(Convert.FromBase64String(name))) as EmbeddedResource;
+					if (resource != null)
+						return resource;
+				}
+				catch {
+				}
+			}
+			return null;
+		}
+	}
+}
diff --git a/de4dot.code/deobfuscators/CryptoObfuscator/ConstantsDecrypter.cs b/de4dot.code/deobfuscators/CryptoObfuscator/ConstantsDecrypter.cs
index 6b3940a2..1fa6749b 100644
--- a/de4dot.code/deobfuscators/CryptoObfuscator/ConstantsDecrypter.cs
+++ b/de4dot.code/deobfuscators/CryptoObfuscator/ConstantsDecrypter.cs
@@ -106,26 +106,10 @@ namespace de4dot.code.deobfuscators.CryptoObfuscator {
 			if (decrypterType == null)
 				return;
 
-			encryptedResource = getResource(module, DotNetUtils.getCodeStrings(DotNetUtils.getMethod(decrypterType, ".cctor")));
+			encryptedResource = CoUtils.getResource(module, DotNetUtils.getCodeStrings(DotNetUtils.getMethod(decrypterType, ".cctor")));
 			constantsData = resourceDecrypter.decrypt(encryptedResource.GetResourceStream());
 		}
 
-		static EmbeddedResource getResource(ModuleDefinition module, IEnumerable<string> names) {
-			foreach (var name in names) {
-				var resource = DotNetUtils.getResource(module, name) as EmbeddedResource;
-				if (resource != null)
-					return resource;
-				try {
-					resource = DotNetUtils.getResource(module, Encoding.UTF8.GetString(Convert.FromBase64String(name))) as EmbeddedResource;
-					if (resource != null)
-						return resource;
-				}
-				catch {
-				}
-			}
-			return null;
-		}
-
 		public int decryptInt32(int index) {
 			return BitConverter.ToInt32(constantsData, index);
 		}