From b2d72b153f2ec5bc14cc45da88e78f3ef455598a Mon Sep 17 00:00:00 2001
From: de4dot <de4dot@gmail.com>
Date: Sun, 29 Jul 2012 18:12:29 +0200
Subject: [PATCH] Ignore exceptions when calling detect()

Most likely invalid code and/or metadata, which usually means it's still
encrypted.
---
 de4dot.code/ObfuscatedFile.cs | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/de4dot.code/ObfuscatedFile.cs b/de4dot.code/ObfuscatedFile.cs
index 182eb7a5..6707b492 100644
--- a/de4dot.code/ObfuscatedFile.cs
+++ b/de4dot.code/ObfuscatedFile.cs
@@ -302,7 +302,13 @@ namespace de4dot.code {
 			int detectVal = 0;
 			foreach (var deob in deobfuscators) {
 				this.deob = deob;	// So we can call deob.CanInlineMethods in deobfuscate()
-				int val = deob.detect();
+				int val;
+				try {
+					val = deob.detect();
+				}
+				catch {
+					val = deob.Type == "un" ? 1 : 0;
+				}
 				Log.v("{0,3}: {1}", val, deob.TypeLong);
 				if (val > 0 && deob.Type != "un")
 					allDetected.Add(deob);
@@ -731,7 +737,7 @@ namespace de4dot.code {
 					DotNetUtils.restoreBody(method, allInstructions, allExceptionHandlers);
 				}
 				catch {
-					Log.w("Could not deobfuscate {0:X8}", method.MetadataToken.ToInt32());
+					Log.v("Could not deobfuscate {0:X8}", method.MetadataToken.ToInt32());
 				}
 			}