MalwarePublished 5 Aug 2026

bnpl-blocks-atom-bnpl-anchor-menu (npm) · Malicious Code

Affects bnpl-blocks-atom-bnpl-anchor-menuSource GCVE Database

Malicious package : remove bnpl-blocks-atom-bnpl-anchor-menu and rotate any secrets on hosts that installed it.

Data as of 6 Aug 2026, 19:32 UTC

Classification

Malicious package

Published to npm · OSV MAL-2026-12863

What to do

Remove bnpl-blocks-atom-bnpl-anchor-menu 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
npmbnpl-blocks-atom-bnpl-anchor-menu	Affected =35.8.5	Fixed in–

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Description

The npm package bnpl-blocks-atom-bnpl-anchor-menu version 35.8.5 contains malicious code that downloads and executes opaque native binaries from anonymous Cloudflare Workers subdomains and uses a DNS-TXT base64 fallback to resolve additional command-and-control domains. This behavior occurs immediately upon requiring the package, enabling remote code execution on the host system. The package's declared functionality does not justify this behavior, indicating deliberate malicious intent. Systems with this package installed should be considered fully compromised.

Impact

Any system that installs or runs this package version is subject to remote code execution by the malicious payload, resulting in full system compromise. Attackers gain persistent, arbitrary code execution capabilities, potentially accessing all secrets and keys on the host. The compromise is severe enough that removal of the package alone does not guarantee eradication of the attacker presence or malware installed post-compromise.

Defensive guidance

Immediate removal of the bnpl-blocks-atom-bnpl-anchor-menu package version 35.8.5 is strongly advised. Systems with this package installed should be treated as fully compromised; all secrets and keys must be rotated from a separate, trusted environment. Conduct a thorough incident response to identify and remediate any persistent malicious artifacts beyond the package itself. Monitor vendor advisories for any updates or official fixes.

Summary

The npm package bnpl-blocks-atom-bnpl-anchor-menu version 35.8.5 includes a malicious loader (_loader.js) that evades static analysis by assembling hostnames from split-string arrays. It downloads an opaque executable from Cloudflare Workers subdomains and fallback domains resolved via DNS-TXT records pointing to Russian infrastructure. The executable is saved to temporary directories under misleading filenames, permissioned to execute, and launched detached from the main process, effectively enabling remote code execution upon package import. A sibling module (lib/telemetry.js) contains similar dropper functionality. This behavior is inconsistent with the package's stated purpose as a UI anchor menu and represents a severe supply chain compromise.

References

Community reviews

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What to do

Affected software

Description

AI analysisMachine-generated, updated 6 Aug 2026, 19:32 UTC

Technical details

References

Community reviews