[RST] ShellcodeCompiler

[Nytro]

Shellcode Compiler

Shellcode Compiler is a program that compiles C/C++ style code into a small, position-independent and NULL-free shellcode for Windows. It is possible to call any Windows API function in a user-friendly way.

 

Shellcode Compiler takes as input a source file and it uses it's own compiler to interpret the code and generate an assembly file which is assembled with NASM (http://www.nasm.us/).

 

Shellcode compiler was released at DefCamp security conference in Romania, November 2016.

 

Link: https://github.com/NytroRST/ShellcodeCompiler

 

[TheTime]

Daca vrei sa adaugi la proiect optiunea de a testa un shellcode deja existent (nu doar unul proaspat generat): http://pastebin.com/HeJfjxwg

 

Usage:

C:\Temp> TestShellcode.exe shellcode.bin

 

E bazat pe codul scris de tine, nimic nou sub soare. Util si pentru CTF.

[Nytro]

Buna idee, thanks! Si da, trebuie sa creez un nou thread, sa incerc sa nu crap procesul, in caz de fail la shellcode.

[UnixDevel]

nice tool to have  good job man 

[Nytro]

 

[cjack]

Amazing tool guys! And opensource too, thanks for sharing

[Nytro]

Am rescris codul, era un singur fisier mare, acum arata mai normal. Sper ca in curand sa ii pot face update-ul pe care vreau sa il fac.

 

https://github.com/NytroRST/ShellcodeCompiler

[theeternalwanderer]

@Nytro, ai un spatiu la sfarsitul linkului. 

[Guest]

1 hour ago, Nytro said:

Am rescris codul, era un singur fisier mare, acum arata mai normal. Sper ca in curand sa ii pot face update-ul pe care vreau sa il fac.

 

https://github.com/NytroRST/ShellcodeCompiler

Scuza-ma ca intreb, cat ti-a luat sa rescrii asta ? 

[Nytro]

Cateva ore bune. Nu e tocmai rescris, e aranjat si grupat pe clase mai exact, ca era un singur fisier cu mult cod.

[Olatunji09]

On 11/11/2016 at 0:24 AM, Nytro said:

Shellcode Compiler

Shellcode Compiler is a program that compiles C/C++ style code into a small, position-independent and NULL-free shellcode for Windows. It is possible to call any Windows API function in a user-friendly way.

 

Shellcode Compiler takes as input a source file and it uses it's own compiler to interpret the code and generate an assembly file which is assembled with NASM (http://www.nasm.us/).

 

Shellcode compiler was released at DefCamp security conference in Romania, November 2016.

 

Link: https://github.com/NytroRST/ShellcodeCompiler

 

can you make a shellcode that executes embeded exe with process hollowing technique ?

[Nytro]

Not yet.

[Che]

On 4/11/2017 at 0:18 AM, Nytro said:

Not yet.

Executabilul este generat/compilat folosind nasm sau il face el de la zero ? Practic programul este ca si MS Visual Studio sau cum anume compileaza executabilul ? Face call si executa nasm ca sa produca executabilul, nu ?

[Nytro]

ShellcodeCompiler primeste ca parametru un script (limbaj asemanator cu C/C++) si genereaza cod ASM. Acel cod ASM e asamblat cu NASM si rezulta shellcode-ul.

PS: Acel ASM generat e creat special sa functioneze ca un shellcode (gaseste dinamic functiile pe care le apeleaza, parametrii sunt pusi pe stack, inclusiv sirurile de caractere).

 

 

[Nytro]

ShellcodeCompiler was updated! It uses now @keystone_engine to assemble shellcodes!  https://github.com/NytroRST/ShellcodeCompiler

[Nytro]

Am adaugat suport pentru Windows x64, Linux x86 si Linux x64.

 

https://www.defcon.org/html/defcon-27/dc-27-demolabs.html#Shellcode Compiler