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

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DETECTION OVERVIEW

Emotet TLS Certificate

Risk Factors

The Emotet malware has experienced a resurgence in popularity even though it is not open-source software. When a TLS connection is established with an Emotet server, the attacker might be able to maintain a persistent presence on your network, steal user credentials, and spread malware across the network with a self-replicating worm.

Category

Command-and-Control
Detection diagram
Next in Command-and-Control: Empire C&C HTTP Connection

Attack Background

Emotet is malware known for stealing credentials, installing other malware packages, and infecting email accounts to spam contacts with malicious emails. Emotet targets Windows environments and is commonly distributed through email phishing campaigns. When a user clicks on a phishing link, a stager downloads and runs the Emotet malware to establish a connection with an attacker-controlled C&C server over HTTPS. If the Emotet malware is successfully installed, it can attempt to brute force passwords, collect credentials, or distribute other malware packages. Emotet will then access available email contacts and turn the device into a spambot that sends frequent emails containing malicious attachments or links to infect other machines.

Mitigation Options

Quarantine devices to check for indicators of compromise, such as malware

Implement network segmentation, security zones, and firewall policies that limit how devices can communicate

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.

Report

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

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

News

Detections

Visit this resource for more information.

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.

Blog

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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