diff --git a/de4dot.code/deobfuscators/Confuser/ProxyCallFixer.cs b/de4dot.code/deobfuscators/Confuser/ProxyCallFixer.cs
index 13e39e8e..fa3479aa 100644
--- a/de4dot.code/deobfuscators/Confuser/ProxyCallFixer.cs
+++ b/de4dot.code/deobfuscators/Confuser/ProxyCallFixer.cs
@@ -42,6 +42,7 @@ namespace de4dot.code.deobfuscators.Confuser {
 			v10_r42919,
 			v10_r48717,
 			v11_r50378,
+			v12_r54564,
 			v14_r58564,
 			v14_r58857,
 			v17_r73740_normal,
@@ -199,6 +200,7 @@ namespace de4dot.code.deobfuscators.Confuser {
 
 			case ConfuserVersion.v10_r48717:
 			case ConfuserVersion.v11_r50378:
+			case ConfuserVersion.v12_r54564:
 			case ConfuserVersion.v14_r58564:
 				getCallInfo_v10_r48717(info, creatorInfo, out calledMethod, out callOpcode);
 				break;
@@ -512,8 +514,13 @@ namespace de4dot.code.deobfuscators.Confuser {
 						theVersion = ConfuserVersion.v19_r76101_normal;
 					else if ((nativeMethod = findNativeMethod_v19_r76101(method)) != null)
 						theVersion = ConfuserVersion.v19_r76101_native;
-					else if (proxyType == ProxyCreatorType.CallOrCallvirt && !DotNetUtils.callsMethod(method, "System.Int32 System.String::get_Length()"))
-						theVersion = ConfuserVersion.v11_r50378;
+					else {
+						if (proxyType == ProxyCreatorType.CallOrCallvirt && !DotNetUtils.callsMethod(method, "System.Int32 System.String::get_Length()"))
+							theVersion = ConfuserVersion.v11_r50378;
+						int numCalls = countCalls(method, "System.Byte[] System.Text.Encoding::GetBytes(System.Char[],System.Int32,System.Int32)");
+						if (numCalls == 2)
+							theVersion = ConfuserVersion.v12_r54564;
+					}
 				}
 				else if (is_v17_r73740(method)) {
 					if (DotNetUtils.callsMethod(method, "System.Boolean System.Type::get_IsArray()")) {
@@ -544,6 +551,22 @@ namespace de4dot.code.deobfuscators.Confuser {
 			}
 		}
 
+		static int countCalls(MethodDefinition method, string methodFullName) {
+			int count = 0;
+			foreach (var instr in method.Body.Instructions) {
+				if (instr.OpCode.Code != Code.Call && instr.OpCode.Code != Code.Callvirt && instr.OpCode.Code != Code.Newobj)
+					continue;
+				var calledMethod = instr.Operand as MethodReference;
+				if (calledMethod == null)
+					continue;
+				if (calledMethod.FullName != methodFullName)
+					continue;
+
+				count++;
+			}
+			return count;
+		}
+
 		static bool findMagic_v19_r76101(MethodDefinition method, out uint magic) {
 			var instrs = method.Body.Instructions;
 			for (int i = 0; i < instrs.Count - 7; i++) {
@@ -980,6 +1003,11 @@ namespace de4dot.code.deobfuscators.Confuser {
 
 			case ConfuserVersion.v11_r50378:
 				minRev = 50378;
+				maxRev = 54431;
+				return true;
+
+			case ConfuserVersion.v12_r54564:
+				minRev = 54564;
 				maxRev = 58446;
 				return true;