Gustavo Mendes Carvalho | Aerospace, Defense and Security | everis Brazil

DNS Data Collection and Transfer

This article discusses the use of DNS service to collect data (exfiltration) to send commands in order to carry out an attack (Command & Control (C2). The following website provides further information on DNS service and what is it used for: When we are at home or work and want to access a website (for instance or, our device sends a query to DNS servers online and retrieves the IP address required to access the website on our browser.


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