Hello. We are trying to develop a set of NVTs which have to count open ports on the target machine and compare the result to a defined threshold, so if the result is higher than the threshold we throw a security alert telling that there are too many open ports on the target system.
We have tried to use get_port_state() function to know if a port may be open or not and open_sock_tcp() to fully determine if port is open, but it's necessary to scan thousands of ports and our script is taking a too much long time to execute. How can we get the number of open ports on the target host on a quick way? Regards.
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