Bug baksmali ( decompile via apktool-2.2.3 )

[ghost]

Hello I encounter a decompile bug with apktool linked to baksmali See the bug on Mi-Drone.apk lien apk: http://app.mi.com/details?id=com.fimi.soul&ref=search

java -jar apktool-2.2.3.jar d Mi-Drone-1.0.60.11.apk I: Using Apktool 2.2.3-95f86f-SNAPSHOT on Mi-Drone-1.0.60.11.apk I: Loading resource table... I: Decoding AndroidManifest.xml with resources... I: Loading resource table from file: /home/fayz/.local/share/apktool/framework/1.apk I: Regular manifest package... I: Decoding file-resources... I: Decoding values / XMLs... I: Baksmaling classes.dex... La/ab;->(La/s;La/q;)V: Invalid debug offset La/aa;->(La/s;La/ae;La/q;Ljava/util/concurrent/Executor;)V: Invalid debug offset La/a;->(Ljava/lang/String;[Ljava/lang/Throwable;)V: Invalid debug offset La/ab;->(La/s;La/q;)V: Invalid debug offset La/a;->(Ljava/lang/String;[Ljava/lang/Throwable;)V: Invalid debug offset La/a;->(Ljava/util/List;)V: Invalid debug offset La/a;->(Ljava/util/List;)V: Invalid debug offset La/ab;->a(La/s;)La/s;: Invalid debug offset La/ab;->a(La/s;)La/s;: Invalid debug offset La/a;->a()Ljava/util/List;: Invalid debug offset La/aa;->(La/s;La/ae;La/q;Ljava/util/concurrent/Executor;)V: Invalid debug offset La/aa;->a(La/s;)Ljava/lang/Void;: Invalid debug offset La/aa;->a(La/s;)Ljava/lang/Void;: Invalid debug offset L0/0;->()V: Invalid debug offset La/ac;->(La/s;La/q;)V: Invalid debug offset La/ac;->(La/s;La/q;)V: Invalid debug offset La/ac;->a(La/s;)La/s;: Invalid debug offset La/ac;->a(La/s;)La/s;: Invalid debug offset La/ab;->then(La/s;)Ljava/lang/Object;: Invalid debug offset La/ab;->then(La/s;)Ljava/lang/Object;: Invalid debug offset La/ac;->then(La/s;)Ljava/lang/Object;: Invalid debug offset La/a;->b()[Ljava/lang/Throwable;: Invalid debug offset La/ac;->then(La/s;)Ljava/lang/Object;: Invalid debug offset La/ae;->(La/s;)V: Invalid debug offset La/ae;->(La/s;)V: Invalid debug offset La/ae;->(La/s;La/t;)V: Invalid debug offset La/ae;->(La/s;La/t;)V: Invalid debug offset La/ae;->a()La/s;: Invalid debug offset La/af;->(Landroid/content/Context;)V: Invalid debug offset La/af;->(Landroid/content/Context;)V: Invalid debug offset La/af;->a(Ljava/util/Map;Landroid/net/Uri;)La/e;: Invalid debug offset La/af;->a(Ljava/util/Map;Landroid/net/Uri;)La/e;: Invalid debug offset La/af;->a(La/af;)Landroid/content/Context;: Invalid debug offset La/af;->a(La/af;)Landroid/content/Context;: Invalid debug offset La/af;->a(Ljava/lang/String;)Landroid/net/Uri;: Invalid debug offset La/ae;->a(Ljava/lang/Exception;)Z: Invalid debug offset La/ad;->(La/q;La/s;La/ae;)V: Invalid debug offset La/aa;->then(La/s;)Ljava/lang/Object;: Invalid debug offset La/aa;->then(La/s;)Ljava/lang/Object;: Invalid debug offset La/ad;->(La/q;La/s;La/ae;)V: Invalid debug offset La/af;->a(Ljava/lang/String;)Landroid/net/Uri;: Invalid debug offset La/ag;->(La/af;Landroid/net/Uri;)V: Invalid debug offset La/ag;->(La/af;Landroid/net/Uri;)V: Invalid debug offset La/af;->a(Ljava/net/URLConnection;)Ljava/lang/String;: Invalid debug offset La/ag;->a(La/s;)La/e;: Invalid debug offset La/af;->a(Ljava/net/URLConnection;)Ljava/lang/String;: Invalid debug offset La/af;->a(Ljava/util/Map;Ljava/lang/String;)Ljava/util/List;: Invalid debug offset La/ag;->a(La/s;)La/e;: Invalid debug offset La/af;->a(Ljava/util/Map;Ljava/lang/String;)Ljava/util/List;: Invalid debug offset La/af;->a(Lorg/json/JSONArray;)Ljava/util/Map;: Invalid debug offset La/ag;->then(La/s;)Ljava/lang/Object;: Invalid debug offset La/af;->a(Lorg/json/JSONArray;)Ljava/util/Map;: Invalid debug offset La/ag;->then(La/s;)Ljava/lang/Object;: Invalid debug offset La/ah;->(La/af;La/p;Landroid/net/Uri;La/p;)V: Invalid debug offset La/ah;->(La/af;La/p;Landroid/net/Uri;La/p;)V: Invalid debug offset La/ae;->a(Ljava/lang/Exception;)Z: Invalid debug offset La/ah;->a(La/s;)La/s;: Invalid debug offset La/ae;->a(Ljava/lang/Object;)Z: Invalid debug offset La/af;->b(Ljava/util/Map;Landroid/net/Uri;)La/e;: Invalid debug offset La/ae;->a(Ljava/lang/Object;)Z: Invalid debug offset La/ae;->b(Ljava/lang/Exception;)V: Invalid debug offset La/ae;->b(Ljava/lang/Exception;)V: Invalid debug offset La/ae;->b(Ljava/lang/Object;)V: Invalid debug offset La/ae;->b(Ljava/lang/Object;)V: Invalid debug offset La/ad;->run()V: Invalid debug offset La/ai;->(La/ah;)V: Invalid debug offset La/ai;->(La/ah;)V: Invalid debug offset La/ai;->a(Landroid/webkit/WebView;)V: Invalid debug offset La/ai;->a(Landroid/webkit/WebView;)V: Invalid debug offset La/ai;->onLoadResource(Landroid/webkit/WebView;Ljava/lang/String;)V: Invalid debug offset La/ai;->onLoadResource(Landroid/webkit/WebView;Ljava/lang/String;)V: Invalid debug offset La/af;->b(Ljava/util/Map;Landroid/net/Uri;)La/e;: Invalid debug offset La/ah;->a(La/s;)La/s;: Invalid debug offset La/ah;->then(La/s;)Ljava/lang/Object;: Invalid debug offset La/af;->b(Ljava/net/URLConnection;)Ljava/lang/String;: Invalid debug offset La/ae;->b()Z: Invalid debug offset La/ai;->onPageFinished(Landroid/webkit/WebView;Ljava/lang/String;)V: Invalid debug offset La/ai;->onPageFinished(Landroid/webkit/WebView;Ljava/lang/String;)V: Invalid debug offset La/ae;->c()V: Invalid debug offset La/af;->b(Ljava/net/URLConnection;)Ljava/lang/String;: Invalid debug offset La/aj;->(La/ah;La/ae;)V: Invalid debug offset La/aj;->(La/ah;La/ae;)V: Invalid debug offset La/aj;->a(Ljava/lang/String;)V: Invalid debug offset La/ak;->(La/af;Landroid/net/Uri;La/p;La/p;)V: Invalid debug offset La/aj;->a(Ljava/lang/String;)V: Invalid debug offset La/ak;->(La/af;Landroid/net/Uri;La/p;La/p;)V: Invalid debug offset La/ak;->a()Ljava/lang/Void;: Invalid debug offset La/ak;->call()Ljava/lang/Object;: Invalid debug offset La/d;->()V: Invalid debug offset La/d;->(La/c;)V: Invalid debug offset La/d;->(La/c;)V: Invalid debug offset La/d;->execute(Ljava/lang/Runnable;)V: Invalid debug offset La/d;->execute(Ljava/lang/Runnable;)V: Invalid debug offset La/af;->b(Lorg/json/JSONArray;)Ljava/util/Map;: Invalid debug offset La/ah;->then(La/s;)Ljava/lang/Object;: Invalid debug offset La/e;->(Landroid/net/Uri;Ljava/util/List;Landroid/net/Uri;)V: Invalid debug offset La/e;->(Landroid/net/Uri;Ljava/util/List;Landroid/net/Uri;)V: Invalid debug offset La/af;->b(Lorg/json/JSONArray;)Ljava/util/Map;: Invalid debug offset La/e;->a()Landroid/net/Uri;: Invalid debug offset La/e;->b()Ljava/util/List;: Invalid debug offset La/e;->c()Landroid/net/Uri;: Invalid debug offset La/af;->a(Landroid/net/Uri;)La/s;: Invalid debug offset La/af;->a(Landroid/net/Uri;)La/s;: Invalid debug offset La/g;->(La/e;Landroid/os/Bundle;Landroid/os/Bundle;)V: Invalid debug offset La/g;->(La/e;Landroid/os/Bundle;Landroid/os/Bundle;)V: Invalid debug offset ect......

[JesusFreke]

Looks WAI to me, other than maybe the large number of messages in this case. An invalid debug offset is an obfuscation technique meant to exploit a bug in previous versions of baksmali, in order to prevent disassembly.

As you can see, it no longer prevents disassembly :)

[ghost]

Yes but application force close ???

[JesusFreke]

I don't see anything about a force close in your original bug description :). What is the exception+stack trace?

[ghost]

The long and enormous If you can test decompile then recompile Installed the application it will not launch

[JesusFreke]

No, I'm not installing a random untrusted apk from the web :)

[ghost]

Ok I'm copying the complete decompile

[JesusFreke]

I have no idea what that means. All I asked for was the exception and stack trace.

[ghost]

The application does not start And here is the logcat logcat.txt

[JesusFreke]

That... is not logcat. See https://developer.android.com/studio/command-line/logcat.html

[Lanchon]

obfuscators can add code to check the signature or other properties of the APK and FC if tamper is detected, and this has nothing to do with correctness of smali.