Setting up a SNIFFLAB
Detailed Guide
Please consult the detailed guide on setting up your own Snifflab network here: https://openeffect.ca/snifflab-an-environment-for-testing-mobile-devices/
sniffer.py command line arguments
-i (specify the network interface)
-s (specify the file size limit)
-t (specify the time interval, in seconds, between new PCAP files)
-f (specify a filename suffix to append to each PCAP.
-u (specify a ssh username for a remote backup)
-h (specify a ssh host for remote backup)
-p (specify the path on the remote host for backup)
Firewall rules on DD-WRT router to send traffic to MITM proxy box
Make sure the network interface (vlan1 here) is correct.
PROXYIP=your.proxy.ip
iptables -t mangle -A PREROUTING -j ACCEPT -p tcp -m multiport --dports 80,443 -s $PROXYIP
iptables -t mangle -A PREROUTING -j MARK --set-mark 3 -p tcp -m multiport --dports 80,443
ip rule add fwmark 3 table 2
ip route add default via $PROXYIP dev vlan1 table 2
PCAP machine scripts
/etc/network/interfaces
auto lo
iface lo inet loopback
iface eth0 inet manual
iface eth1 inet manual
allow-hotplug wlan0
iface wlan0 inet dhcp
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
iface default inet dhcp
auto bond0
iface bond0 inet dhcp
bond-mode 3
bond-miimon 100
slaves eth0 eth1
/etc/wpa_supplicant/wpa_supplicant.conf
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
network={
ssid=""
psk=hashofyourpassword
proto=RSN
key_mgmt=WPA-PSK
pairwise=TKIP
auth_alg=OPEN
}
Getting the network running correctly on boot
/etc/init.d/network.sh
#!/bin/sh
### BEGIN INIT INFO
# Provides: network.sh
# Short-Description: Ensure WiFi as well as Ethernet interfaces are up
# Description:
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Required-Start: $remote_fs $syslog
# Required-Stop: $remote_fs $syslog
### END INIT INFO
sudo ifplugd eth0 --kill
sudo ifup wlan0
sudo ifup eth0
sudo ifup eth1
sudo ifconfig eth1 promisc
sudo ifconfig eth0 promisc
exit 0
Start capturing packets on startup -- create a sniffer service
/etc/init/sniffer.conf
#sniffer.conf
start on runlevel [2345]
stop on runlevel [016]
script
cd /home/pi/snifflab
exec python sniffer.py -i bond0 -s 100 -t 1200
end script
MITM proxy service
mitm.conf
start on filesystem
script
sudo iptables -A PREROUTING -t nat -i em1 -p tcp -m multiport --dports 80,443 -j REDIRECT --to-port 4567
SSLKEYLOGFILE=/var/log/mitmkeys.log
export SSLKEYLOGFILE
echo "MITM Keys being logged here: $SSLKEYLOGFILE"
exec mitmdump -T --host --conf=/etc/mitmproxy/common.conf
end script
Script to backup pcaps to local machine
#!/bin/bash
remote_server=yourservername
pcap_dir=/pcaps
keylogfile=/var/log/mitmkeys.log
local_dir=~/Documents/snifflab
rsync -a "$remote_server":$pcap_dir $local_dir
scp "$remote_server":$keylogfile $local_dir