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

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DETECTION OVERVIEW

BadCandy Web Shell Activity

Risk Factors

The Cisco vulnerabilities CVE-2023-10198 and CVE-2023-20273 are well known and have been exploited by attackers to install the BadCandy web shell. An attacker then can run arbitrary commands and launch attacks on additional internal networks from the web shell.

Category

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

Attack Background

An attacker can install the BadCandy web shell implant by exploiting two well-known vulnerabilities (CVE-2023-20198 and CVE-2023-20273) in the web UI of Cisco IOS XE. After installing the BadCandy implant, an attacker can communicate with the implant by sending an HTTP request that has both a specific path and a query. The query can consist of different commands, depending on the objective of the attacker.

Mitigation Options

Install relevant patches to affected Cisco IOS XE versions

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.

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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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