Shulou(Shulou.com)06/01 Report--

Using wireshark to grab Telnet plaintext username and password

1. First open wireshark, and then grab the package 2. Add filter conditions to filter out irrelevant packets. For example, the filter condition in this paper is: ip.dst = = 192.168.2.90 and tcp.port== 23 3. As shown in the figure:

Note the black marked package in the diagram, the first package shows the letter 'fallow, which is the first letter of my user name. It seems that the tool grabs only one letter at a time, and then compares it down until it stops when it meets' / rscarp n'. The above two letters mean line break and enter, and then the password is about to be entered.

Look at the black marked bag in the text. Z is the first letter of the password. Look down in the same way, and you will find the plaintext password. Attachment: http://down.51cto.com/data/2362570

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