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EC-Council

312-50V13 · Question #416

Dayn, an attacker, wanted to detect if any honeypots are installed in a target network. For this purpose, he used a time-based TCP fingerprinting method to validate the response to a normal computer…

The correct answer is C. Detecting the presence of Snort_inline honeypots. Dayn's use of time-based TCP fingerprinting and SYN requests to validate responses from honeypots versus normal computers is a technique employed to detect Snort_inline honeypots.

Submitted by yuki_2020· Mar 6, 2026Evading IDS, Firewalls, and Honeypots

Question

Dayn, an attacker, wanted to detect if any honeypots are installed in a target network. For this purpose, he used a time-based TCP fingerprinting method to validate the response to a normal computer and the response of a honeypot to a manual SYN request. Which of the following techniques is employed by Dayn to detect honeypots?

Options

  • ADetecting honeypots running on VMware
  • BDetecting the presence of Honeyd honeypots
  • CDetecting the presence of Snort_inline honeypots
  • DDetecting the presence of Sebek-based honeypots

How the community answered

(59 responses)
  • A
    10% (6)
  • B
    3% (2)
  • C
    80% (47)
  • D
    7% (4)

Why each option

Dayn's use of time-based TCP fingerprinting and SYN requests to validate responses from honeypots versus normal computers is a technique employed to detect Snort_inline honeypots.

ADetecting honeypots running on VMware

Detecting honeypots running on VMware would typically involve looking for virtualization artifacts, not primarily time-based TCP fingerprinting related to SYN responses.

BDetecting the presence of Honeyd honeypots

Honeyd is a low-interaction honeypot, but the described time-based TCP fingerprinting using SYN requests to detect subtle network stack behaviors is more characteristic of detecting an inline IPS/honeypot like Snort_inline.

CDetecting the presence of Snort_inline honeypotsCorrect

Detecting Snort_inline honeypots often involves analyzing network stack characteristics, such as TCP/IP timestamps and SYN/ACK responses, to identify inconsistencies that differentiate them from real operating systems. Snort_inline, functioning as an inline intrusion prevention system, can inadvertently reveal its true nature through these subtle network behaviors when trying to emulate other systems.

DDetecting the presence of Sebek-based honeypots

Sebek-based honeypots are associated with high-interaction honeypots and involve kernel-level logging, not primarily detected through time-based TCP SYN response fingerprinting of the network stack itself.

Concept tested: Honeypot detection techniques (Snort_inline)

Topics

#honeypot detection#time-based fingerprinting#TCP fingerprinting#Snort_inline

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