diff --git a/de4dot.code/deobfuscators/Babel_NET/ImageReader.cs b/de4dot.code/deobfuscators/Babel_NET/ImageReader.cs
index 7ab6bcd0..a81f2f66 100644
--- a/de4dot.code/deobfuscators/Babel_NET/ImageReader.cs
+++ b/de4dot.code/deobfuscators/Babel_NET/ImageReader.cs
@@ -470,15 +470,7 @@ namespace de4dot.code.deobfuscators.Babel_NET {
 		}
 
 		public int readVariableLengthInt32() {
-			byte b = reader.ReadByte();
-			if ((b & 0x80) == 0)
-				return b;
-			if ((b & 0x40) == 0)
-				return (((int)b & 0x3F) << 8) + reader.ReadByte();
-			return (((int)b & 0x3F) << 24) +
-					((int)reader.ReadByte() << 16) +
-					((int)reader.ReadByte() << 8) +
-					reader.ReadByte();
+			return DeobUtils.readVariableLengthInt32(reader);
 		}
 
 		int getMetadataOffset() {
diff --git a/de4dot.code/deobfuscators/CryptoObfuscator/StringDecrypter.cs b/de4dot.code/deobfuscators/CryptoObfuscator/StringDecrypter.cs
index 599f076c..ceb79bff 100644
--- a/de4dot.code/deobfuscators/CryptoObfuscator/StringDecrypter.cs
+++ b/de4dot.code/deobfuscators/CryptoObfuscator/StringDecrypter.cs
@@ -92,19 +92,7 @@ namespace de4dot.code.deobfuscators.CryptoObfuscator {
 		}
 
 		public string decrypt(int index) {
-			int len;
-			byte b = decryptedData[index++];
-			if ((b & 0x80) == 0)
-				len = b;
-			else if ((b & 0x40) == 0)
-				len = ((b & 0x3F) << 8) + decryptedData[index++];
-			else {
-				len = ((b & 0x3F) << 24) +
-						((int)decryptedData[index++] << 16) +
-						((int)decryptedData[index++] << 8) +
-						decryptedData[index++];
-			}
-
+			int len = DeobUtils.readVariableLengthInt32(decryptedData, ref index);
 			return Encoding.Unicode.GetString(decryptedData, index, len);
 		}
 
diff --git a/de4dot.code/deobfuscators/DeobUtils.cs b/de4dot.code/deobfuscators/DeobUtils.cs
index 4332f8a7..45d52c5a 100644
--- a/de4dot.code/deobfuscators/DeobUtils.cs
+++ b/de4dot.code/deobfuscators/DeobUtils.cs
@@ -163,6 +163,18 @@ namespace de4dot.code.deobfuscators {
 					reader.ReadByte();
 		}
 
+		public static int readVariableLengthInt32(byte[] data, ref int index) {
+			byte b = data[index++];
+			if ((b & 0x80) == 0)
+				return b;
+			if ((b & 0x40) == 0)
+				return (((int)b & 0x3F) << 8) + data[index++];
+			return (((int)b & 0x3F) << 24) +
+					((int)data[index++] << 16) +
+					((int)data[index++] << 8) +
+					data[index++];
+		}
+
 		public static bool hasInteger(MethodDefinition method, uint value) {
 			return hasInteger(method, (int)value);
 		}
diff --git a/de4dot.code/deobfuscators/SmartAssembly/StringDecrypter.cs b/de4dot.code/deobfuscators/SmartAssembly/StringDecrypter.cs
index 4d9dfe17..531817e2 100644
--- a/de4dot.code/deobfuscators/SmartAssembly/StringDecrypter.cs
+++ b/de4dot.code/deobfuscators/SmartAssembly/StringDecrypter.cs
@@ -54,19 +54,7 @@ namespace de4dot.code.deobfuscators.SmartAssembly {
 				throw new ApplicationException("Can't decrypt strings since decryptedData is null");
 
 			int index = id - (token & 0x00FFFFFF) - stringOffset;
-
-			int len;
-			byte b = decryptedData[index++];
-			if ((b & 0x80) == 0)
-				len = b;
-			else if ((b & 0x40) == 0)
-				len = ((b & 0x3F) << 8) + decryptedData[index++];
-			else {
-				len = ((b & 0x1F) << 24) +
-						((int)decryptedData[index++] << 16) +
-						((int)decryptedData[index++] << 8) +
-						decryptedData[index++];
-			}
+			int len = DeobUtils.readVariableLengthInt32(decryptedData, ref index);
 
 			switch (StringDecrypterInfo.DecrypterVersion) {
 			case StringDecrypterVersion.V1: