Network Traffic Analysis

The following resources are available for practicing your Network Traffic Analysis (NTA):

Selected Challenges


The following challenges were all taken from previous National Cyber League competitions starting in Fall 2015 or are altered versions of challenges created for NCL competitions. All credit for these challenges is due to Cyber Skyline and the associated Player Ambassadors.

For challenges which are the intellectual property of Cyber Skyline, we cannot release the answers.

Selected challenges for practicing your NTA can be found below.

FTP (Easy)
by Cyber Skyline

DNS (Easy)
by Cyber Skyline

HTTP (Easy)
by Cyber Skyline

Potential Exfil (Medium)
by MistressVenom
Someone’s being sneaky! Find out the service they are using and the weird device on their network in this week’s medium network traffic analysis challenge.

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