executing shellcode

[bubzuru]

how can i execute shellcode from a vb.net app
i know it can be done cuz it can from almost every
other language including vbscript ??

[shamir]

http://www.dnzone.com/ShowDetail.asp?NewsId=3066
http://www.codeproject.com/useritems/selfdel.asp
http://www.neowin.net/forum/lofiversion ... -5700.html

enjoy the help man.

[maboroshi]

Maybe winsock will do the trick not to familiar with VB.... But look at adding payload to a socket with winsock may help your research

Edit *

This link may help http://msdn2.microsoft.com/en-us/library/ms741416.aspx basically is a reference to winsock then you just need to find the syntax for Visual Basic

[bubzuru]

Maybe winsock will do the trick not to familiar with VB.... But look at adding payload to a socket with winsock may help your research

Edit *

This link may help http://msdn2.microsoft.com/en-us/library/ms741416.aspx basically is a reference to winsock then you just need to find the syntax for Visual Basic

maybe if you know c you could help me
more with this

here is the c code to execute shellcode

Code: Select all

#include <stdio.h>
#include <windows.h>

char ShellCode[] = "\xEB"
"\x0F\x58\x80\x30\x95\x40\x81\x38\x68\x61\x63\x6B\x75\xF4\xEB\x05\xE8\xEC\xFF\xFF"
"\xFF\xF1\x34\xA5\x95\x95\x95\xAB\x53\xD5\x97\x95\x56\x68\x61\x63\x6B\xCD";

int main()
{
	printf("Shellcode length: %d\n", strlen(ShellCode));
	return 0;
}

now how would that look in vb ??

[floodhound2]

Please explain what you are trying to do in more detail.

Visual basic is an object oriented language, so you have to use objects already made most will not cause damage to the operating system.

Shellcode is a relocatable piece of machine code used as the payload in the exploitation of a software bug. It is called "shellcode" because it typically starts a command shell from which the attacker can control the compromised machine.

VB is going to be tricky if it can be done at all. Perhaps calling some API? Let me know what you are trying to do, but I remain skeptical on this since VB and machine code don’t flow nicely together. Personally VB is not really programming its sort of an accumulation of borrowed code.

Do you just want to execute an executable or run a .bat file?
Need more input!!!

[bubzuru]

well id just like to execute shell code
i cant thing ov any other way to put it
here is an example in vbscript

http://goodfellas.shellcode.com.ar/own/ ... 706223.txt

i thought i could just put the shellcode into a function
then execute the function but it didn't work

i know you can do this but i just dont know how

[floodhound2]

i know you can do this but i just dont know how

Me either- I think I could figure it out but I am lazy today.