Re: Regarding HDM's blog about persistent HTTPS connections

[HD Moore <hdm () metasploit com>]

On 4/14/2010 8:20 AM, Matt Gardenghi wrote:
> HD, I followed your example, but when I encode calc.exe, the resulting
> file is 7.7MB.  Clearly something is wrong....  The input file size is
> 918K.
>
> Further, when I use a different file (say cmd.exe - starts at 301K) it
> is 2.4MB.  Also, when the vbs is run on a test box, it pegs the CPU and
> seems to fail.
>
> I'm using Framework: 3.4.0-dev.9052 and Console: 3.4.0-dev.9040
>
> Am I missing something?  Or is there a bug somewhere that I should be
> reporting?

Converting an EXE to a VBS ends up adding a ton of overhead - the VBS
code might just be taking a long time to decode the hex buffer before
writing it to disk to execute. You can try either waiting longer or
finding a smaller EXE to use as a template. My own testing ended up with
a ~980k VBS, but this was using calc.exe from Windows XP SP1.

-HD
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