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

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DETECTION OVERVIEW

Invoke-ShareFinder Enumeration Attempt

Risk Factors

Invoke-ShareFinder is a popular tool that makes file share enumeration relatively easy to perform. But an attacker must have network access to the target to run ShareFinder. Enumeration activity typically does not negatively affect network performance, but attackers can leverage this information to find new targets in an attack campaign.

Category

Reconnaissance
Detection diagram
Next in Reconnaissance: Kerberoasting LDAP Reconnaissance Activity

Attack Background

Invoke-ShareFinder is a PowerShell script that is designed to discover and enumerate shared resources across a network. Active Directory (AD) is one of the information sources that is targeted by ShareFinder. ShareFinder leverages network protocols such as LDAP and SMB to retrieve data from domain controllers about computers on the local network. For example, ShareFinder runs different types of LDAP queries to retrieve different collections of data in a domain, such as workstations. Sharefinder then sends an ICMP ping, which confirms the enumerated computers retrieved from the LDAP queries. After retrieving a list of Windows hosts and with access to network shares, ShareFinder attempts to connect to Windows hosts over SMB.

Mitigation Options

Restrict PowerShell scripts on Windows hosts

Restrict PowerShell scripts by configuring PowerShell execution policies

Limit scripts to AppLocker administrators

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
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