ExtraHop named a Leader in the 2025 Forrester Wave™: Network Analysis And Visibility Solutions

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DETECTION OVERVIEW

Merlin C&C HTTP Connection

Risk Factors

The Merlin framework is publicly available and has been associated with known attack campaigns. Command-and-control (C&C) connections generated by a Merlin agent indicate that an attacker could remotely control a device and gain an entry point for further attacks on the network.

Category

Command-and-Control
Detection diagram
Next in Command-and-Control: Metasploit C&C TLS Connection

Attack Background

Merlin is a post-exploit framework. An attacker installs a Merlin agent on the victim device. The agent establishes a connection with an attacker-controlled server and sends a specially designed HTTP POST request. These types of requests can contain command output and other information that is valuable to the attackers.

Mitigation Options

Quarantine the device while checking for the presence of malware
Monitor and investigate unusual network activity for lateral movement or data exfiltration

MITRE ATT&CK ID

Associated content

Announcing The Forrester Wave™: Network Analysis And Visibility Solutions, Q4 2025

Network analysis and visibility solutions remain underrepresented in enterprises. Find out why in this preview of a new Wave report.

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ExtraHop® Named a Leader in First-Ever Gartner® Magic Quadrant™ for Network Detection and Response — ExtraHop

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News

Detections

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Docs

The 2025 ExtraHop Global Threat Landscape Report: The Alarming Reality of Threat Actor Dwell Time and Deeper Network Access — ExtraHop

This analysis exposes the critical link between an organization's lack of internal visibility and the escalating cost of compromise, demanding an urgent re-evaluation of how core business assets are protected.

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ExtraHop RevealX MITRE ATT&CK Coverage 2024 — ExtraHop

Learn why you need to be wary of the claims certain network detection and response providers make about their coverage against the MITRE ATT&CK framework.

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MITRE ATT&CK - Network Detection & Response with RevealX — ExtraHop

Learn how NDR from RevealX helps security teams detect and investigate more adversary TTPs in the MITRE ATT&CK framework than rule-based tools.

External
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