Posted by: Anonymous
on October 08, 2007 08:47 PM
Most port scans go through the first 0 - 1023 ports for vulnerability because it does not take long to scan and provide results. Anything beyond that will start to be time consuming which unless you ARE the target, the port scanner will keep moving until it finds another target with any open ports from 0 - 1023. I change my range for SSH to TCP 41022. From experience, I have port scanned 65554 ports and have taken about 16-20 hrs to complete. Again, unless you are the target, I don't think anyone will wait that long and move on to the one with open ports...there are tons out there.