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

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DETECTION OVERVIEW

New Tunneling Software Activity

Risk Factors

Tunneling software is one of many publicly available tools that attackers or employees can leverage to bypass firewall restrictions and facilitate unauthorized access to internal network resources. However, the likelihood is low because as a prerequisite, a device inside the network must already be running tunneling software.

The system might change the risk score for this detection.

Category

Command-and-Control
Detection diagram
Next in Command-and-Control: Outbound Connection to a Cobalt Strike IP Address

Attack Background

A reverse tunnel enables an attacker to target an internal network from the internet. Tunneling software such as ngrok and FRP (Fast Reverse Proxy) creates a secure reverse tunnel to a locally hosted device or devices. Legitimate users can also deploy tunneling software to access blocked sites or internally hosted resources for the purpose of circumventing policy and network restrictions.

Mitigation Options

Quarantine the device while checking for indicators of compromise.

Block or limit outbound traffic to sites and services associated with tunneling software.

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.

Blog

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
Periodic Table of Use Cases

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