Hack You CTF 2012 - Packets 200

In this task, we are supposed to answer the question: “What’s the md5 of the file being transferred?”. We are given another capture file, this time containing a session with FTP.

We simply followed the tcp stream of the FTP data transferred after a RETR command was sent to the server and saved the data to a file.

After that, we ran md5sum on the file.

amon@Alyx:~/hackyou/pac200$ md5sum ftpdata
77f92edb199815b17e2ff8da36e200df ftpdata
amon@Alyx:~/hackyou/pac200$