A client recently hired a penetration testing firm to conduct an assessment of their consumer- facing web application. Several days into the assessment, the client's networking team observes a…

The correct answer is A. Covert data exfiltration. Covert Data Exfiltration: DNS traffic can be leveraged for covert data exfiltration because it is often allowed through firewalls and not heavily monitored. Tools or techniques for DNS tunneling encode sensitive information into DNS queries or responses, resulting in an…

Submitted by rachelw· Mar 6, 2026Post-exploitation and Lateral Movement

Question

A client recently hired a penetration testing firm to conduct an assessment of their consumer- facing web application. Several days into the assessment, the client's networking team observes a substantial increase in DNS traffic. Which of the following would most likely explain the increase in DNS traffic?

Options

ACovert data exfiltration
BURL spidering
CHTML scrapping
DDoS attack

How the community answered

(29 responses)

A
76% (22)
B
7% (2)
C
14% (4)
D
3% (1)

Explanation

Covert Data Exfiltration: DNS traffic can be leveraged for covert data exfiltration because it is often allowed through firewalls and not heavily monitored. Tools or techniques for DNS tunneling encode sensitive information into DNS queries or responses, resulting in an observable increase in DNS traffic.

Topics

#DNS exfiltration#covert data exfiltration#network anomalies

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