NIST deprecates RSA-2048 from 2030. Find every one of them before attackers do.
Malicious package

bnpl-blocks-independent-bnpl-text-blocknpm

Advisory published Updated

bnpl-blocks-independent-bnpl-text-block is a confirmed malicious npm package (MAL-2026-12972) that typosquats a legitimate package to trick installs (malicious version 35.7.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in bnpl-blocks-independent-bnpl-text-block (npm)

MAL-2026-12972
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall bnpl-blocks-independent-bnpl-text-block

What this malware does

On require of this package, index.js loads compat.js which unconditionally bootstraps a dropper. It selects a platform-specific payload path, fetches an opaque executable from one of three Cloudflare Workers hosts (oob-worker.cf99-9b3.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf103-070.workers.dev) with a DNS-TXT chunked-base64 fallback via sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru, writes it to /tmp or %TEMP% under a disguised name (.cache<hex> on POSIX, dotnet_diag_<hex>.exe on Windows), chmods 0755, and spawns it detached via /bin/sh -c or cmd.exe /c start /b. No hash or signature verification is performed. Destination hostnames are reconstructed at runtime by joining fragmented string arrays (e.g. ['sdk.dl.','wel1','.ru'].join(''), ['oob-worker.cf102-','baf.','work','ers','.d','ev'].join('')), and the dropped-file names impersonate benign diagnostic tooling (dotnet_diag). A stale-marker gates re-execution across imports.

Malicious versions

1 flagged
35.7.1

Indicators of compromise (SHA-256)

6bc1ec9ae3c3510564b412ad20157f80b59ebe816ceda37ee01a3a46fd146b3f

Detection & response playbook

Typosquat

  1. Find it

    Search your lockfiles and build artifacts for bnpl-blocks-independent-bnpl-text-block (version 35.7.1).

  2. If you installed it — respond

    bnpl-blocks-independent-bnpl-text-block is a typosquat — you almost certainly intended a legitimately-named package. Remove bnpl-blocks-independent-bnpl-text-block, install the correct package, and rotate any secrets exposed during the install since post-install scripts may have already run.

  3. Did it already run?

    If bnpl-blocks-independent-bnpl-text-block 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-independent-bnpl-text-block on npm has been identified as a malicious package (version 35.7.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-015412

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks bnpl-blocks-independent-bnpl-text-block-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.

Malware detection Runtime egress monitoring

Explore

All malware advisories How O3 detects malware Vulnerability database
bnpl-blocks-independent-bnpl-text-block (npm) malicious package — MAL-2026-12972 | O3 Security