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

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DETECTION OVERVIEW

Suspicious FTP Download

Risk Factors

Files can easily be shared over the FTP protocol. When a client downloads a suspicious file, particularly an executable file, there is a risk that the file is malware or malicious code. FTP is an uncommon command-and-control (C&C) channel because malicious files exchanged over FTP are unencrypted and easy to detect. However, this activity should be examined before potential malware facilitates critical and costly attacks.

Category

Command-and-Control
Detection diagram
Next in Command-and-Control: Suspicious SMB Named Pipe

Attack Background

Although unlikely, an attacker can establish a C&C channel over FTP to maintain communication with a compromised client on a network. Typically, the compromised client requests additional malware code or instructions from an attacker-controlled server. The attacker then sends files that contain malicious content to the client over FTP, which enables the attacker to take the next steps towards their ultimate attack objectives.

Mitigation Options

Disable FTP unless required

Block inbound and outbound FTP traffic at the network perimeter

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

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

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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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