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[vb.net] Builder/ Crypter Example (With RC4 Encryption!)

moved to http://deathader.blogspot.com/

please close
so this is more like a cryptor than a builder?
Ill take a look
Amazing! Thank you for this source.
I'm working on getting it UD..
Thanks man! I'm gonna take a look at this and work off it.
where does the output file end up?
(Jul 21, 2009 09:59 PM)P0w3R0fChr1sT Wrote:  where does the output file end up?

In the same directory as the "packer"

(Jul 21, 2009 09:20 PM)Vaqxine Wrote:  Thanks man! I'm gonna take a look at this and work off it.

Be sure to include me somewhere if you do ;)
i aws woking on that. i was looking how to drop it to the memory, not to HDD. this way no fucken av will smell it ^^
Is there a limit to what RC4 encryption keys can be?
Or could I swap "swgfwef3 24" with "ArSzj4alzl4oa0" for example...
(Jul 22, 2009 04:44 AM)GoldStar Wrote:  i aws woking on that. i was looking how to drop it to the memory, not to HDD. this way no fucken av will smell it ^^

and this crypter where drop ?
Quote:and this crypter where drop ?


To the HDD...
(Jul 22, 2009 07:18 AM)Vaqxine Wrote:  Is there a limit to what RC4 encryption keys can be?
Or could I swap "swgfwef3 24" with "ArSzj4alzl4oa0" for example...

No. It can be any character.

I personally use 256 char key files, randomly generated upon cryptation to prevent AV's from picking up my stubs ;)
Yeah, found that out now, thanks! :)

Do you happen to have a code for icon changing? :3 You have some awesome stuff.
I've only seen one program that can change icons of .exe's in VB.NET and it was converted from C# D:
(Jul 22, 2009 09:20 AM)Vaqxine Wrote:  Yeah, found that out now, thanks! :)

Do you happen to have a code for icon changing? :3 You have some awesome stuff.
I've only seen one program that can change icons of .exe's in VB.NET and it was converted from C# D:

Actually, no I do not. If I did I would share with 'ya though ;)
Thanks for the share :) Could you please explain how the crypter works? As in, how does it allow the file to go undetected, and a definition of RC4 Encryption?
(Jul 22, 2009 12:31 PM)★☆✰ Matto ✰☆★ Wrote:  Thanks for the share :) Could you please explain how the crypter works? As in, how does it allow the file to go undetected, and a definition of RC4 Encryption?

It's pretty simple.

How AV's work is they scan the PE code for the exe, and search for malicious strings. This encrypts the PE code to such a degree that the AV's can't determine if it's malicious or not, so it appears to be safe :)

And RC4 encryption is a very strong encryption algorithm


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