From ba54b607eba85ec0eed1dba28118d964eb8c2161 Mon Sep 17 00:00:00 2001
From: de4dot <de4dot@gmail.com>
Date: Thu, 20 Dec 2012 01:45:50 +0100
Subject: [PATCH] Make sure MD header version isn't 1.1 (reset it to 2.0 if so)

---
 de4dot.code/deobfuscators/DeobfuscatorBase.cs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/de4dot.code/deobfuscators/DeobfuscatorBase.cs b/de4dot.code/deobfuscators/DeobfuscatorBase.cs
index c53cd3f2..650f17be 100644
--- a/de4dot.code/deobfuscators/DeobfuscatorBase.cs
+++ b/de4dot.code/deobfuscators/DeobfuscatorBase.cs
@@ -194,6 +194,7 @@ namespace de4dot.code.deobfuscators {
 			}
 
 			restoreBaseType();
+			fixMDHeaderVersion();
 		}
 
 		static bool isTypeWithInvalidBaseType(TypeDef moduleType, TypeDef type) {
@@ -212,6 +213,13 @@ namespace de4dot.code.deobfuscators {
 			}
 		}
 
+		void fixMDHeaderVersion() {
+			// Version 1.1 supports generics but it's a little different. Most tools
+			// will have a problem reading the MD tables, so switch to the standard v2.0.
+			if (module.TablesHeaderVersion == 0x0101)
+				module.TablesHeaderVersion = 0x0200;
+		}
+
 		void removeTypesWithInvalidBaseTypes() {
 			var moduleType = DotNetUtils.getModuleType(module);
 			foreach (var type in module.GetTypes()) {