Scanning with nmap
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I don't solve this box yet, I'll go further with nmap command line scanner
nmap -v 10.10.10.28
-v stands for verbose (that we see some output)
In that case nmap sends ping packets to the target host. We can verify that with tcpdump:
sudo tcpdump -i tun0 -p icmp
sudo nmap 10.10.10.28 -v -Pn -sV -O
If we use the paramater -Pn nmap doesn't send ping packets. -sV stands for Version detection and -O for OS detection.
-A enables OS detection, version detection, script scan and traceroute
-p is for specific ports (example -p22,80,443)
-T can be used for timing options (4 is default, 5 is maximum) --> Can be used to evade firewall and IDS detection
-sS stand for stealth scan or syn scan
-oA scan_results writes an output file
-iL targets.txt Input list of ip addresses to scan
-F scan top 100 ports (fastscan)
-sU -p U:53 performs UDP scan on port 53
-sC or --script use a specific NSE script
sudo nmap --script smb-enum-users.nse -p 445 10.10.10.27
NSE scripts are located in /usr/share/nmap/scripts
NSE Scripts extends the core functionality of nmap. You can find more informations about them inside the help of nmap or the NSE reference: https://nmap.org/nsedoc/
