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

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DETECTION OVERVIEW

Unusual Archive File Upload

Risk Factors

Creating an archive file is a common way for attackers to exfiltrate large amounts of data while minimizing file size. Anyone can make an archive file with built-in system tools. After valuable data is successfully transferred out of the network, there can be significant negative effects on the reputation and revenue of an organization.

Category

Actions on Objective
Detection diagram
Next in Actions on Objective: Unusual Download from S3 Bucket

Attack Background

The following archive file types are detected:

CAB (Cabinet), which is affiliated with Microsoft Windows

ZIP, which is supported by many operating systems

7z, which is an open-source file format

RAR (Roshal Archive), which is a proprietary archive format

GZ (GNU Zip), which is an open-source file format

TAR (Tape Archive), which is affiliated with Unix systems

Mitigation Options

Quarantine the device while checking for indicators of compromise, such as malware
Configure firewalls to block outbound traffic to suspicious external hosts
Implement network segmentation, security zones, and firewall policies that limit how devices can communicate

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.

Blog

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.

Blog

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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