portfinder.sh

#!/bin/bash
#
# A script specifically for the CTF with formatted output which will paste straight
# into the spreadsheet.
#
# Usage = ./portfinder.sh 10.0.0/24
# Usage = ./portfinder.sh list_of_targets.txt
#
# Leon Teale (@leonteale)


#Variables
targets="$1"

#Funcetions
header () {
    echo "            _    __ _           _"
    echo " _ __   ___  _ __| |_ / _(_)_ __   __| | __ _ __"
    echo "| '_ \ / _ \| '__| __| |_| | '_ \ / _\` |/ _ \\ '__|"
    echo "| |_) | (_) | |  | |_|  _| | | | | (_| |  __/ |"
    echo "| .__/ \___/|_|   \__|_| |_|_| |_|\__,_|\___|_|  (@leonteale)"
    echo "|_|"
    echo " "
    echo "A script specifically for the CTF with formatted output which will paste straight"
    echo "into the spreadsheet."
    }

usage () {

    echo ""
    echo "Usage = ./portfinder.sh 10.0.0/24 (may take a while to run)"
    echo "Usage = ./portfinder.sh list_of_targets.txt"
    echo ""
    exit 1
    }

scan () {
    echo " "
    echo "Finding Open Ports For Spreadheet Format"
    echo " "
    echo "Number of hosts found: `cat $targets | wc -l`"
    echo " "
        for hosts in `cat $targets`;do
            nmap $hosts --open > nmap.txt;
            cat nmap.txt | grep "Nmap scan report for" | awk {'printf $NF'};printf "\t";cat nmap.txt | grep "open" | awk {'print $1'} | cut -d / -f 1 | paste -s -d,
        done
    }

scan_range () {
    nmap -n -sn -vv $targets |grep "Host is up" -B 1 |grep "Nmap" |cut -d " " -f 5 > targets.txt
    targets=targets.txt
    scan
    }

cleanup () {
    if [ -e targets.txt ];
        then
            rm targets.txt
        else
            echo ""
    fi
    rm nmap.txt
    }

#Start the script
header
if [ $# -eq 0 ] || [ -d "$targets" ]
  then
    usage
elif [ -f "$targets" ]; then
    scan
    cleanup
else
    scan_range
    cleanup
fi