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

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DETECTION OVERVIEW

Suspicious User Agent from a Scanner

Risk Factors

A user-agent string that appears in HTTP and other protocol headers can identify software running on a client. Certain types of pen testing software perform scans that can be identified by a user agent (UA). Authorized scans will not damage an application, but unauthorized scans should be investigated.

Category

Caution
Detection diagram
Next in Caution: TLS Connection to a Suspicious Domain

Attack Background

N/A

Mitigation Options

Quarantine devices with unexpected scanning activity to prevent further network access
Implement network segmentation, security zones, and firewall policies that limit how devices can communicate
Disable services that are not required and close unnecessary ports

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

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.

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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
Periodic Table of Use Cases

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