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Network Scan


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Hi there,

I look for a injection to scan the whole Network, IPs, Ports, etc. like netdiscover.

Can someone help me, to make, cause my programming knowings are not so good...

For EX:

I want to stick the Shark into a Switch, it discovers the whole Network and save it into a txt file.

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  • 4 weeks later...

I would like to share the nmap options that I found useful to run from the Shark Jack, without causing the scan to take so long that that battery dies. It outputs useful info for a quick scan, that will tell you about potential targets or vulnerabilities. I'm not going to explain every port listed, some should be very familiar to most IT people. Feel free to omit the ports you don't care about.

NMAP_OPTIONS="-p 21,22,23,53,69,80,123,139,443,445,554,1812,3389,5220,2022,4242,4343,5000,5650,5655,5670,5800,5900,8080,8333,8222,8765,8008,8009,8181,8282,8383,8484,8888,8443,9000,10000,32400,32401,32402,49153 --open"

(This is literally the line from the Shark Jack sample nmap scan payload. So if you try to run that manually in the shell, it will not work, obviously.)

For example, port 10000 is used by Webmin by default. Webmin had a vulnerability where it would allow getting the root password or root access. So this scan would tell me that some machine is using it, and I can follow up with further scans to see what version of Webmin it is and if it has been patched. Port 139 is used by NETBIOS, so it quickly identifies Windows computers, especially if they are running an older OS. And so forth.

EDIT: Here is an example of the output for one network object. See if you can guess what it is 😉

Nmap scan report for
Host is up (0.00065s latency).
Not shown: 35 closed ports
22/tcp    open  ssh
139/tcp   open  netbios-ssn
445/tcp   open  microsoft-ds
8080/tcp  open  http-proxy
9000/tcp  open  cslistener
32400/tcp open  plex
MAC Address: F0:1F:AF:40:3D:F2 (Dell)


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