An administrator received a FortiAnalyzer alert that a 1 ТВ disk filled up in a day. Upon investigation, they found thousands of unusual DNS log requests, such as JHCMQK.website.com, with no answers. They later discovered that DNS exfiltration was occurring through both UDP and TLS.
How can the administrator prevent this data theft technique?
Harkell72
2 weeks, 6 days ago