Abstract
This paper describes an attempt to write Win32 shellcode that is as small as
possible, to perform a common task subject to reasonable constraints. The
solution presented implements a bindshell in 191 bytes of null-free code,
and outlines some general ideas for writing small shellcode.
Cheers,
Dafydd Stuttard
Principal Security Consultant
NGS Software Ltd
shellcode. This can be downloaded from:
http://www.ngssoftware.com/papers/WritingSmallShellcode.pdf
Abstract
This paper describes an attempt to write Win32 shellcode that is as small as
possible, to perform a common task subject to reasonable constraints. The
solution presented implements a bindshell in 191 bytes of null-free code,
and outlines some general ideas for writing small shellcode.
Cheers,
Dafydd Stuttard
Principal Security Consultant
NGS Software Ltd
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