mupack

[mudlord]

Dragging an executable on mupack_pub.exe won't start packing.

Nice idea, I should add commandline support.

Packing section take some time, at first i thought it freezes during while loop or something, it would be nice to have some text like "Wait...Packing" while packing.

Another nice idea, I'll add that.

Also what about merging all section into one section ? no options tab ?

Merging all sections would take a rewrite, although it should help compression ratio. I didn't see the need for a options tab, what options should there be?

About Compression ratio: Have you done some exe packer comparison with similar tools ? (uPack/XPack/MEW/..)

No, I should though.

[dj-siba]

Originally Posted by mudlord

I didn't see the need for a options tab, what options should there be?

There are many:
Strip TLS
Strip Reloc
Strip Debug
Strip Delphi Resources
Don't compress resource
Preserve Overlay
Merge Sections
Compression Algo
...

[evlncrn8]

blog seems down chief, also firefox reports the site as serving malware... if i tell it to ignore it i get a 404 on the link you posted for the 'response' ... kinda sucks someone leaked, i know what that feels like.. really makes you question the motives of some people

[mudlord]

Yah, Google in thier infinite wisdom blocked my site thanks to some false positives on some demos & files I coded, because I used a packer. And its impossible to get them to unblock because the review process seems to be entirely automated.

I tried working around it by setting Apache settings to make http://mudlord.info/blog usable instead, but that broke Wordpress entirely.

At least now the people at the taggant team have a PDF of the depacker internals, hopefully they can spread it amongst the cabal so they can autodepack it like UPX.

[mr.exodia]

@mudlord you could try setting a subdomain with some aliasing, but chances are google blocked your entire domain range

[evlncrn8]

automated blacklisting is a recipe for disaster...

[mudlord]

Originally Posted by evlncrn8

automated blacklisting is a recipe for disaster...

I know, but I proved it happened: Managed to unblacklist my site just by password protecting ZIPs/RARs with packed files.

Strip TLS

Some executables might need it.

Strip Reloc

Might be needed for some executables, mandatory for DLLs.

Strip Debug

Useful feature to strip. Will have to do some research to see which section debug data is stored in.

Strip Delphi Resources

Could you elaborate?

Don't compress resource

Better yet, selectable section compression.

Preserve Overlay

Overlay preservation is a feature I must add, especially when there is plenty of Flash games around these days.

Merge Sections

Would like to add. Would need to experiment with some things, such as the rebuilt resource section after resources compression.

Compression Algo

Private build already does this dynamically depending on the file size. It also does better compression with the default compression algorithm. But whats in there currently thats public is already pretty good as it. It sure beats LZO/aplib/zlib/LZ4/lzss. I have some ideas to further improve the compression algorithm though, but I got a private x64 rewrite in progress though.

[dj-siba]

Strip Delphi Resources
Could you elaborate?

Strip VCLAL and PACKAGEINFO resources

Private build already does this dynamically depending on the file size

Nice, so that's why it's one file drop pack and Go

[mudlord]

Originally Posted by dj-siba

Strip VCLAL and PACKAGEINFO resources

Thanks for the info.

Originally Posted by dj-siba

Nice, so that's why it's one file drop pack and Go

Yes, the private build uses a high compression variant of whats in the public build as well as LZMA1. LZMA2 wasn't chosen since thats just 7z related, and not compression algo related. It changes on the fly since LZMA works well on files on large file sizes whereas the LZ77+range coder works well on small-medium file sizes. There is also a tradeoff when using the HC variant of LZ77+range coder, in terms of speed, so thats taken into account too. I'm quite proud of that.

[CryptXor]

Have you tried alternatives to LZMA by any chance?

[mudlord]

LZMA1 seemed to be one of the best, if not the best for compression ratio vs decompressor size.

[mudlord]

Started work on dj-siba's requests, next version will have at least commandline support for integration into MSVC and other things.

[mudlord]

Updated:

* Added commandline support.

[mudlord]

Updated:

* Hack around commandline issues.
* Fixed bug on displaying depacker stub size.

[Max]

The last 2 version does not work in windows xp.

It prompt exe is not a valid win32 application.