MalwarePublished 5 Aug 2026

tinkoff-statist-browser-typed-client-eventea.projects.finhealthwebmicroblocks (npm) · Malicious Code

Affects tinkoff-statist-browser-typed-client-eventea.projects.finhealthwebmicroblocksSource GCVE Database

Malicious package : remove tinkoff-statist-browser-typed-client-eventea.projects.finhealthwebmicroblocks and rotate any secrets on hosts that installed it.

Data as of 6 Aug 2026, 19:22 UTC

Classification

Malicious package

Published to npm · OSV MAL-2026-12259

What to do

Remove tinkoff-statist-browser-typed-client-eventea.projects.finhealthwebmicroblocks 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
npmtinkoff-statist-browser-typed-client-eventea.projects.finhealthwebmicroblocks	Affected =20.4.7	Fixed in–

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Description

The npm package tinkoff-statist-browser-typed-client-eventea.projects.finhealthwebmicroblocks version 20.4.7 contains malicious code that downloads and executes attacker-controlled binaries on the host system. The package uses obfuscated hostname assembly and disguises the downloaded binaries with filenames mimicking legitimate diagnostic tools. Execution occurs upon installation or requiring the package, leading to full system compromise. Immediate removal and secret/key rotation are strongly advised.

Impact

Any system with this package installed or running is considered fully compromised. Attackers gain the ability to execute arbitrary code with the privileges of the installer, potentially leading to complete system takeover. All secrets and keys stored on the compromised system should be considered exposed and must be rotated from a secure environment. Removal of the package alone does not guarantee elimination of all malicious components.

Defensive guidance

Remove the malicious package immediately from any affected systems. Rotate all secrets, credentials, and keys that were stored or accessible on the compromised host from a different, trusted machine. Because the package executes attacker-controlled binaries, assume full system compromise and consider rebuilding the affected systems.

Summary

This npm package version 20.4.7 includes code in index.js and lib/telemetry.js that downloads platform-specific binaries from dynamically constructed Cloudflare Workers hostnames and fallback DNS TXT records. These binaries are saved to hidden paths with disguised filenames and executed detached via shell commands. The behavior is designed to evade detection by impersonating benign diagnostic artifacts. Installing or requiring this package results in execution of unverified, attacker-controlled binary code, effectively compromising the host system.

References

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What to do

Affected software

Description

AI analysisMachine-generated, updated 6 Aug 2026, 19:22 UTC

Technical details

References

Community reviews