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nmap scanner?

Posted on 2016-10-15
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Last Modified: 2016-11-13
nmap scanner?who knows how to scan port 3333-3392 not all open ports but only those who have RDP ?
thank you...
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Question by:john lambert
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by:ste5an
ID: 41845154
Use nmap -p 3333-3392 on the command line.
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by:skullnobrains
ID: 41845155
something like this

nmap -PY3333-3392 a.b.d.d/mask | grep RDP
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by:skullnobrains
ID: 41883428
requires to loop over nmap results and attempt a connection with a software that understands rdp

something like this scans ports properly on my own host.
i feel lazy grabbing the hostname with sed but it is rather trivial

nmap -p 3333-3392 localhost | sed -n 's:^\([0-9][0-9]*\).*:\1:p' | xargs -n 1 -I% sh -c 'xfreerdp -u tst -p tst --authonly localhost:% >/dev/null 2>/dev/null && echo "RDP listening on localhost:%" '
RDP listening on localhost:3389

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by:john lambert
ID: 41884496
something for windows ?
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skullnobrains earned 500 total points
ID: 41884500
since you stated yourself that you already had figured the answer out, i'm wondering why you would ask.

you would need to code the equivalent in whatever language you are comfortable with. powershell has a few tools but parsing nmap's output seems complicated. you probably need to install either sed only and work it out in powershell, or rather script it in vb, perl, or even install cygwin or bash4unix ( or a similar shell ) and use the above code.

note that even the above code does not handle multiple hosts as-is. you'd need a second sed instruction
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by:john lambert
ID: 41884505
thank you........
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by:skullnobrains
ID: 41885428
feel free to post the final script for windows. i'm pretty sure it can be useful to others. if you manage something that works without installing extra tools, all the better.
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