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/********************************************************************************
* libemu
*
* - x86 shellcode emulation -
*
*
* Copyright (C) 2008 Paul Baecher & Markus Koetter
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*
* contact nepenthesdev@users.sourceforge.net
*
*******************************************************************************/
#include "../config.h"
#define HAVE_GETOPT_H
#ifdef HAVE_GETOPT_H
#include <getopt.h>
#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#include <stdint.h>
#define HAVE_UNISTD
#ifdef HAVE_UNISTD
#include <unistd.h>
#endif
#include <stdio.h>
#include <string.h>
#include <arpa/inet.h>
#include "emu/environment/emu_profile.h"
#include "emu/environment/win32/emu_env_w32.h"
struct run_options
{
char *profile_name;
char *function_name;
char *argument_name;
bool profile;
bool debug_dump;
};
struct run_options opts;
struct emu_profile_function *find_function(struct emu_profile *profile, const char *fnname)
{
struct emu_profile_function *function;
for ( function = emu_profile_functions_first(profile->functions); !emu_profile_functions_istail(function); function = emu_profile_functions_next(function) )
{
if ( strcmp(function->fnname,fnname) == 0 )
return function;
}
return NULL;
}
struct emu_profile_argument *find_argument(struct emu_profile_function *function, const char *name)
{
struct emu_profile_argument *argument;
for ( argument = emu_profile_arguments_first(function->arguments); !emu_profile_arguments_istail(argument); argument = emu_profile_arguments_next(argument) )
{
if ( strcmp(argument->argname,name) == 0 )
return argument;
}
return NULL;
}
typedef void (*print_function)(struct emu_profile_function *function, void *args[]);
struct function_render
{
const char *function;
print_function printer;
};
void print_connect(struct emu_profile_function *function, void *args[])
{
// int connect(int sockfd, const struct sockaddr *serv_addr, socklen_t addrlen);
int retval = *(int *)args[0];
int sockfd = *(int *)args[1];
struct sockaddr_in *addrin = *(struct sockaddr_in **)(void **)args[2];
socklen_t addrlen = *(socklen_t *)args[3];
printf("%i = %s(int sockfd=%i, const struct sockaddr *serv_addr=%s:%i, socklen_t addrlen=%i);\n",
retval,
function->fnname,
sockfd,
inet_ntoa(addrin->sin_addr),
ntohs(addrin->sin_port),
addrlen);
}
void print_CreateProcess(struct emu_profile_function *function, void *args[])
{
/*BOOL CreateProcess(
LPCWSTR pszImageName,
LPCWSTR pszCmdLine,
LPSECURITY_ATTRIBUTES psaProcess,
LPSECURITY_ATTRIBUTES psaThread,
BOOL fInheritHandles,
DWORD fdwCreate,
LPVOID pvEnvironment,
LPWSTR pszCurDir,
LPSTARTUPINFOW psiStartInfo,
LPPROCESS_INFORMATION pProcInfo
);*/
bool retval = *(bool *)args[0];
char *psCmdLine = *(char **)(void **)args[2];
printf("%i = %s(\"%s\");\n",
retval,
function->fnname,
psCmdLine);
}
struct function_render function_rendering[] =
{
{ "connect", print_connect},
{ "bind", print_connect},
{ "CreateProcess", print_CreateProcess}
};
int main(int argc, char *argv[])
{
int option_index = 0;
memset(&opts, 0, sizeof(struct run_options));
while ( 1 )
{
int c;
static struct option long_options[] = {
{"argument" , 1, 0, 'a'},
{"debugdump" , 1, 0, 'd'},
{"function" , 1, 0, 'f'},
{"profile" , 0, 0, 'p'},
{0, 0, 0, 0}
};
c = getopt_long (argc, argv, "a:df:p", long_options, &option_index);
if ( c == -1 )
break;
switch ( c )
{
case 'a':
opts.argument_name = strdup(optarg);
printf("argument %s\n", optarg);
break;
case 'd':
opts.debug_dump = true;
break;
case 'f':
opts.function_name = strdup(optarg);
printf("function %s\n", optarg);
break;
case 'p':
opts.profile = true;
break;
default:
printf ("?? getopt returned character code 0%o ??\n", c);
break;
}
}
if ( optind < argc )
{
opts.profile_name = strdup(argv[optind]);
printf("Profile %s\n", argv[optind]);
}
struct emu_profile *profile = emu_profile_new();
if ( emu_profile_parse(profile, opts.profile_name) != 0 )
{
printf("error parsing file %s!\n",opts.profile_name);
return -1;
}
if ( opts.profile )
{
// printf("profiling ....\n");
enum profile_state
{
PS_NONE,
PS_WSASOCKET,
PS_BIND,
PS_LISTEN,
PS_ACCEPT,
PS_CONNECT,
PS_CREATEPROCESS,
PS_URLDOWNLOADTOFILE
};
enum profile_state state = PS_NONE;
struct emu_profile_function *function;
for ( function = emu_profile_functions_first(profile->functions); !emu_profile_functions_istail(function); function = emu_profile_functions_next(function) )
{
// printf("state %i\n", state);
switch ( state )
{
case PS_NONE:
if ( strcmp("WSAStartup", function->fnname) == 0 )
state = PS_WSASOCKET;
else
if ( strcmp("URLDownloadToFile", function->fnname) == 0 )
printf("url download\n");
break;
case PS_WSASOCKET:
if ( strcmp("bind", function->fnname) == 0 )
state = PS_BIND;
else
if ( strcmp("connect", function->fnname) == 0 )
state = PS_CONNECT;
break;
case PS_BIND:
if ( strcmp("listen", function->fnname) == 0 )
state = PS_LISTEN;
break;
case PS_LISTEN:
if ( strcmp("accept", function->fnname) == 0 )
state = PS_ACCEPT;
break;
case PS_ACCEPT:
if ( strcmp("CreateProcess", function->fnname) == 0 )
printf("bindshell\n");
else
if ( strcmp("recv", function->fnname) == 0 )
printf("bindfiletransfer");
break;
case PS_CONNECT:
if ( strcmp("CreateProcess", function->fnname) == 0 )
printf("connectbackshell\n");
else
if ( strcmp("recv", function->fnname) == 0 )
printf("connectback transfer");
break;
default:
break;
}
}
}
if ( opts.debug_dump )
{
emu_profile_debug(profile);
}
struct emu_profile_function *function;
for ( function = emu_profile_functions_first(profile->functions); !emu_profile_functions_istail(function); function = emu_profile_functions_next(function) )
{
int argc = emu_profile_arguments_length(function->arguments);
void **args = malloc( (argc+1) * sizeof(void *));
int i;
for ( i = 0; i <= argc; i++ )
args[i] = emu_profile_function_argument_get(function, i);
for ( i=0;i< sizeof(function_rendering)/sizeof(struct function_render);i++ )
{
if ( strcmp(function->fnname, function_rendering[i].function) == 0 )
{
function_rendering[i].printer(function, args);
goto found_function;
}
}
printf("could not find function %s\n",function->fnname);
found_function:
for ( i = 0; i < argc+1; i++ )
free(args[i]);
}
// emu_profile_debug(profile);
emu_profile_free(profile);
return 0;
}
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