Binary metamorphosis

[Paul A. Gagniuc]

Consider a situation in which you don't have te source code of your own application; but the compiled version is usable as a component part in a more complex software system. The VB6 applications shown below use the hexadecimal system to encode the binary content of an executable file. The point here is that one may compile an executable file that contains another executable file inside. Once the new executable file is executed, it is able to write the embedded executable file on disk as an independent executable file.


Download: Binary metamorphosis

[Shaggy Hiker]

What possible use does this have?

[Paul A. Gagniuc]

What possible use does this have?

One use is packing/unpacking different resource or dependency files inside the main executable to avoid errors.

[dilettante]

It also works great for getting programs recognized as VB6 object code to automatically be assigned a higher threat score by antimalware tools before any deep analysis begins.

Writing "droppers" in VB6 hurts all of us.

[Paul A. Gagniuc]

It also works great for getting programs recognized as VB6 object code to automatically be assigned a higher threat score by antimalware tools before any deep analysis begins.

Writing "droppers" in VB6 hurts all of us.

What do you advise?

Also please read the text from subtitle "Why is this important?" from my other repository.

[jg.sa]

G'Day PAG

I'm certain you can understand that some ppl are concerned.

Don't be put off by the concern in this thread.

I find reading your code very interesting as I'm 1 of those crazy ppl. who likes to read code like a book !!!

The code with the high level maths are excellent posts.

[PhuongNam]

I try and use it very well...but it runs very slow and crashes with files larger than 1MB

I also have a similar source code that creates a DLL into source code, then burns it to disc and uses it

I don't speak English ... Google translate ... please understand !

[Paul A. Gagniuc]

I try and use it very well...but it runs very slow and crashes with files larger than 1MB

I also have a similar source code that creates a DLL into source code, then burns it to disc and uses it

I don't speak English ... Google translate ... please understand !

This is exactly the type of use I was talking about. I honestly didn't think anyone would want to store files larger than 1M inside an executable. This method is suitable for small binaries, small images, dll's, ocx's, small sound files, ico files and so on. Where is your VB6 source posted?

[dilettante]

Just learn and use proper deployment techniques.

[Paul A. Gagniuc]

Just learn and use proper deployment techniques.

I didn't expect that. What makes a technique proper and another one improper? Are WinZip or WinRar "droppers" improper?