What programs are the most useful to detect if a 64-bit PE file has been packed (main focus is on EXE files). I am not interested in the packer used I would just like to know if the file is packed or not.

I am aware of various PE file properties such as checking entropy, imports, etc. PeID is generally recommended but unfortunately does not support 64-bit files, is there a program that is similar and supports 64-bit files (I have a large number of files to be checked)? Any other advise to solve this problem?

I have come across a few programs but I am not sure if they are good.


3 Answers 3


protectionid supports x64 files no problem... and if you can think of anything i could add to it, just let me know and i'll see what i can do (new build is planned for halloween and it'll be a spooky 'theme').. just dont tell anyone, its a secret

  • what version was the first to support PE32+ ?
    – Ange
    Commented Sep 11, 2014 at 20:41
  • hmm, version 6, or possibly version 5, its supported pe32+ for quite some time
    – evlncrn8
    Commented Sep 12, 2014 at 0:00
  • does protectionid use the features of the file (entropy, number of imports, etc) as well or is it only signature based?
    – Raphael
    Commented Sep 12, 2014 at 11:46
  • its a lot more than signature based, entropy, imphash, analysis of sections, characteristics and so on... its a bit more than just the simple ep signature scan other scanners do
    – evlncrn8
    Commented Sep 12, 2014 at 13:06

I am only aware of two more packer detectors, Protection iD, and DiE(Detect it Easy) as Extreme Coders has mentioned.

However you are on to something. 64-bit reverse engineering is still in its infancy, apart from IDA, tools are just now being developed to work on 64-bit applications, as it is a new architecture(relative to the number of 64bit applications out there), and on Windows in particular, comes with its own set of quirks(Driver signing, PatchGuard) which significantly slows a reversing down. But even IDA have not yet released a 64-bit decompiler(though they claim it is almost ready) which is further confirmation of what I said.

  • 1
    IDA 6.6 already has a x64 decompiler
    – 0xec
    Commented Sep 9, 2014 at 17:23
  • Ah thanks for catching that, but this is IDA 6.6, x64 has been around for over a decade(though only recently did its use start to go up). My point still stands that 64-bit RE is still in its infancy.
    – farmdve
    Commented Sep 9, 2014 at 17:24
  • @farmvde - "My point still stands that 64-bit RE is still in its infancy". You've only asserted the point, not provided evidence to support it. While there may not be as many 64-bit RE tools, it does not mean it is in its infancy. There are many RE tools supporting 64-bit (radare2, Hopper, IDA Pro, x64_dbg, WinDbg, gdb, Visual DuxDebugger, Capstone, diStorm64, C4Decompiler, etc).
    – Mick
    Commented Sep 9, 2014 at 18:39

I use the following ones:

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