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Malicious package

bnpl-blocks-atom-bnpl-star-ratingnpm

Advisory published Updated

bnpl-blocks-atom-bnpl-star-rating is a confirmed malicious npm package (MAL-2026-12895) that opens a backdoor for remote access (malicious version 35.8.2). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in bnpl-blocks-atom-bnpl-star-rating (npm)

MAL-2026-12895
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall bnpl-blocks-atom-bnpl-star-rating

What this malware does

On require of the package's main entry, index.js loads shim.js which fetches a platform-specific binary payload (dotnet_diag<rand>.exe on Windows, loader_mac /.cache_<rand> on POSIX) from hardcoded Cloudflare Workers hosts, writes it to a temp path, chmods 0755, and spawns it detached via child_process.spawn with unref(). When HTTPS mirrors fail, the loader falls back to a DNS TXT retrieval channel against *.dl.wel1.ru, reading a chunk count from c.<domain> and reassembling sequential N.<domain> TXT records as a base64-encoded payload. C2 hostnames and fallback resolver domains are reconstructed at runtime by.join('') of split-string arrays to defeat static searching, and execution is gated by env-var kill switches (DISABLE_TELEMETRY, ANALYTICS_OPT_OUT, DO_NOT_TRACK) and a /tmp/.analytics_state stamp file for once-per-TTL suppression. The package's declared purpose is a 'star rating abstraction layer,' which does not require fetching or executing an opaque cross-platform binary at load time. The delivered binary runs with the installer's privileges and provides full-host code execution.

Malicious versions

1 flagged
35.8.2

Indicators of compromise (SHA-256)

06bdc5da391bdf16afb2eb1cc60461831dc1d7ede9fa817cc842795cb8d2ddda

Detection & response playbook

Backdoor / remote access

  1. Find it

    Search your lockfiles and build artifacts for bnpl-blocks-atom-bnpl-star-rating (version 35.8.2).

  2. If you installed it — respond

    bnpl-blocks-atom-bnpl-star-rating establishes remote access, so treat any host that installed it as fully compromised. Isolate the machine, remove the package, rotate all credentials it could reach, and rebuild from a trusted image rather than cleaning in place — a backdoor may have planted additional persistence.

  3. Did it already run?

    If bnpl-blocks-atom-bnpl-star-rating was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. bnpl-blocks-atom-bnpl-star-rating on npm has been identified as a malicious package (version 35.8.2 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-015479

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks bnpl-blocks-atom-bnpl-star-rating-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the C2 callback and severs the channel.

Malware detection Runtime egress monitoring

Explore

All malware advisories How O3 detects malware Vulnerability database
bnpl-blocks-atom-bnpl-star-rating (npm) malicious package — MAL-2026-12895 | O3 Security