why I am not able to see classes.dex after extraction of .apk?

Question

I have opened .apk archive file which shows me the following file:

1. Androidmanifest.xml
2. resource.ars
3. META-INF folder
4. RES folder

I am not able to get classes.dex. It shows me in zip folder but when I extract it classes.dex disappear after extraction.

Answer 1

No idea how that happened to you, but you can decompile the apk directly into Java source code using a tool called JADX. Just search it for your platform in Google.

Answer 2

I got the solution of my question and posting answer so may be helpful to someone.

Android .apk file which I was using was malware sample. My Antivirus was not allowing extraction of classes.dex, so it was removed by Antivirus automatically after few seconds.