WebOct 4, 2024 · Abstract: Detecting covert channels among legitimate traffic represents a severe challenge due to the high heterogeneity of networks. Therefore, we propose an … WebOct 4, 2024 · Detecting covert channels among legitimate traffic represents a severe challenge due to the high heterogeneity of networks. Therefore, we propose an effective …
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WebMy Ph.D. titled, "Detection of DNS-based Covert Channels using Machine Learning: A study of data exfiltration over DNS with a focus on filtering malicious query strings from benign DNS traffic" was carried out in the Security Research lab on the Blanchardstown campus. My research involved the application of machine learning techniques to detect ... WebSep 30, 2024 · Bypassed DNS layer-based security defenses (blacklisted domains) that could previously be blocked in the DNS resolving stage, now can only be blocked after DNS resolving at the proxy gateway. ... threat actors could potentially mask their covert channels and domains from detection, as the DNS requests are encapsulated within the “payload ... iona hope church ft myers fl
A DNS-based Data Exfiltration Traffic Detection Method for …
WebCovert channels based on DNS traffic are of particular interest, as DNS requests are an essential part of most Internet traffic and as a result are rarely filtered or blocked by … WebName Server (DNS) traffic in the communication control phase is an effective way of detecting APT attacks. However, analyzing APT attacks based on traffic usually involves the detection of a vast amount of DNS traffic, and current data preprocessing methods do not scale down data effectively, leading to low detection efficiency. WebA covert channel is an information channel that is used by the computer process to exfiltrate data through bypassing security policies. The DNS protocol is one of the important ways to implement a covert channel. DNS covert channels are easily used by attackers for malicious purposes. Therefore, an effective detection approach of the DNS covert … ontario eligibility spectrum 2022