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Malicious package

bnpl-blocks-desktop-bnpl-grid-containernpm

Advisory published Updated

bnpl-blocks-desktop-bnpl-grid-container is a confirmed malicious npm package (MAL-2026-12924) that executes malicious code on install (malicious version 35.2.9). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in bnpl-blocks-desktop-bnpl-grid-container (npm)

MAL-2026-12924
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall bnpl-blocks-desktop-bnpl-grid-container

What this malware does

index.js unconditionally requires./setup.js, which on module load selects an OS/arch-specific asset path and downloads a binary from Cloudflare Workers hostnames assembled via split-string obfuscation (oob-worker.cf101-adf.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf100-416.workers.dev), with a DNS-TXT base64-chunk fallback channel over sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru. The downloaded bytes are written to a disguised temp filename (.cache_<hex> on Unix, dotnet_diag_<hex>.exe on Windows), chmod 0755, and spawned detached via /bin/sh -c fp & or cmd.exe /c start /b. Destination hostnames are constructed at runtime by joining fragmented string arrays, and a TTL flag file throttles re-execution. Installing or requiring this package causes attacker-controlled code to run on the installer's host.

Malicious versions

1 flagged
35.2.9

Indicators of compromise (SHA-256)

0f6433a65cdc6a8c5ce6486234ee3b6a17842ff9b51a9c33448a3dcf9dfcfd4d

Detection & response playbook

Malicious package

  1. Find it

    Search your lockfiles and build artifacts for bnpl-blocks-desktop-bnpl-grid-container (version 35.2.9).

  2. If you installed it — respond

    Remove bnpl-blocks-desktop-bnpl-grid-container from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.

  3. Did it already run?

    If bnpl-blocks-desktop-bnpl-grid-container 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-desktop-bnpl-grid-container on npm has been identified as a malicious package (version 35.2.9 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-015462

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks bnpl-blocks-desktop-bnpl-grid-container-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

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bnpl-blocks-desktop-bnpl-grid-container (npm) malicious package — MAL-2026-12924 | O3 Security