MalwarePublished 5 Aug 2026Updated 19 Aug 2026

quorvex (npm) · Malicious Code

Affects quorvexSource GCVE Database

Malicious package : remove quorvex and rotate any secrets on hosts that installed it.

Data as of 19 Aug 2026, 16:17 UTC

Classification

Malicious package

Published to npm · OSV MAL-2026-12422

What to do

Remove quorvex from every project, lockfile and image that pulls it in. Treat any host that installed it as compromised: rotate the credentials, tokens and keys it could read, from a clean machine.

Affected software

Product	Affected	Fixed in
npmquorvex	Affected =0.2.1 =0.2.0	Fixed in–

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Description

The quorvex npm package versions 0.2.0 and 0.2.1 contain malicious code that drops a base64-encoded Windows executable to the user's Startup folder on Windows hosts with more than 4GB of RAM. This executable, named vite-native-helper.exe, is designed to run automatically at user logon, establishing persistence. The package uses obfuscation and sandbox evasion techniques to ensure the payload executes when the module is imported. This behavior is hidden under a misleading package description and filename to avoid detection.

Impact

Installing or importing the quorvex package on a Windows system with more than 4GB RAM results in the silent drop of a malicious executable that gains persistence by auto-running at user logon. This can lead to unauthorized code execution and potential compromise of the affected system. The obfuscation and sandbox evasion increase the difficulty of detection and analysis.

Defensive guidance

Users should avoid installing or importing quorvex versions 0.2.0 and 0.2.1, especially on Windows hosts. Remove any instances of vite-native-helper.exe from the Startup folder if present. Monitor for and block this package in dependency management and supply chain security controls.

Summary

The quorvex npm package (versions 0.2.0 and 0.2.1) includes a base64-encoded Windows PE binary embedded in its main module (index.mjs). On import, if the host is a Windows system with more than 4GB of RAM, the package decodes this payload and writes it to the Startup folder as vite-native-helper.exe, causing it to execute automatically at the next user logon. The package's README falsely claims it is a placeholder with no functionality, while the code deliberately avoids tree-shaking by bundlers to ensure the payload runs. The memory size check acts as a sandbox evasion technique. This results in silent installation of an attacker-controlled binary with persistence on affected Windows systems.

References

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What to do

Affected software

Description

AI analysisMachine-generated, updated 19 Aug 2026, 16:17 UTC

Technical details

References

Community reviews