[hunt3r972]

Code:

#!/bin/bash echo "By 9H4C7K3R2 - v1.0" echo "@ Script allowing you to scan and detect if a device connects/disconnects from your network" echo echo "[+] Starting script (CTRL+C to stop)" echo "[+] Available interfaces" ifconfig -a | sed 's/[ \t].*//;/^\(lo\|\)$/d' echo -n "[+] Which interface do you want to use ? " read interface echo -n "[+] Set the time between each scan (default is 10 sec): " read pause if [[ $pause == "" ]] then pause=10 echo "[+] Scan every: $pause secondes" else echo "[+] Scan every: $pause secondes" fi range=$(ifconfig $interface | grep -E 'inet addr:' | sed -re 's/inet\ addr\:([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3})//g;s/Bcast\://g;s/Mask\:([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3})//g' | sed -e 's/255/0\-255/g' | sed -e 's/^[ \a]*//') if [[ -z ${range} ]] then range=$(ifconfig $interface | grep -E 'inet adr:' | sed -re 's/inet\ adr\:([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3})//g;s/Bcast\://g;s/Masque\:([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3})//g' | sed -e 's/255/0\-255/g' | sed -e 's/^[ \a]*//') fi while [ 1 ]; do nmap -sP $range > .host.save cat .host.save | sed -e 's/Starting.*//' | sed -e 's/Host.*//' | sed -e 's/Nmap\ done.*//' | sed -e 's/Nmap\ scan\ report\ for\ //' | sed '/^$/d' > .host.save echo "[+] Next scan in $pause sec" sleep $pause nmap -sP $range > .host.bis.save cat .host.bis.save | sed -e 's/Starting.*//' | sed -e 's/Host.*//' | sed -e 's/Nmap\ done.*//' | sed -e 's/Nmap\ scan\ report\ for\ //' | sed '/^$/d' > .host.bis.save diff .host.save .host.bis.save > .result if [ -e .result ]; then if [ ! -s .result ] then echo "[+] Nothing Detected" rm .host.save .host.bis.save else echo "[+] Modification Detected" cat .result | sed '1d' rm .host.save .host.bis.save fi fi done

[Templar.Clown]

Very nice. This will come in handy, saved for a later date. Appreciate the share.

[hunt3r972]

No problem