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

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DETECTION OVERVIEW

RDP Session Enumeration Attempt

Risk Factors

The Remote Desktop Protocol (RDP) is a common target for attackers because Microsoft Remote Desktop is prevalent in enterprise environments, provides remote access to a Windows device, and leaves credentials exposed in memory. Devices with active Remote Desktop sessions can be enumerated easily with attack tools. This type of reconnaissance does not negatively affect network performance, but an attacker could locate Windows devices to target.

The system might change the risk score for this detection.

Kill Chain

Reconnaissance
Detection diagram
Next in Reconnaissance: Rare Database Table Access

Description

$source sent a request for the first time to retrieve user session information from the Remote Desktop server. This behavior indicates that an attacker might be inside the network and collecting information about active Remote Desktop users to target.

Attack Background

Remote Desktop is a built-in tool in Microsoft Windows that enables an authorized remote user to access a Windows system over a network as if they are at the local desktop. If an attacker has stolen Remote Desktop credentials, they can potentially control many Remote Desktop-enabled devices on the network from a single compromised device. To find all of the devices with active RDP sessions, the attacker remotely queries devices with the Microsoft remote procedure call (MSRPC) protocol to call the Terminal Services (TERMSRV) interface. The attacker then receives a list of active RDP sessions on the server and associated clients that they can target.

Mitigation Options

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

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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.

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