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Malicious package

bnpl-blocks-desktop-bnpl-footernpm

Advisory published Updated

bnpl-blocks-desktop-bnpl-footer is a confirmed malicious npm package (MAL-2026-12923) that opens a backdoor for remote access (malicious version 35.2.6). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in bnpl-blocks-desktop-bnpl-footer (npm)

MAL-2026-12923
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall bnpl-blocks-desktop-bnpl-footer

What this malware does

The package is advertised as a UI footer component but side-loads bridge.js on require. bridge.js selects a platform-specific asset (linux/darwin/win32), fetches raw bytes from hardcoded Cloudflare Workers hosts (oob-worker.cf10x-*.workers.dev) with a DNS TXT chunked base64 fallback via *.dl.wel1.ru, writes the bytes to /var/tmp or %TEMP% under a disguised name (.cache<hex> or dotnet_diag<hex>.exe), chmods 0755, and spawns it detached via /bin/sh -c or cmd.exe /c start /b. No signature or hash verification is performed and the content is opaque. C2 hostnames are assembled via split-string Array.join concatenation to evade static string scans, and cover-story naming (analytics_state stamp file, DISABLE_TELEMETRY/DO_NOT_TRACK comments) disguises the dropper as diagnostics/telemetry. Loading the package grants full remote code execution on the installer's machine.

Malicious versions

1 flagged
35.2.6

Indicators of compromise (SHA-256)

6823826cd3999be6c3dac95d5731bbce9bee98ae0b7df019a3b85c97fd5d1bad

Detection & response playbook

Backdoor / remote access

  1. Find it

    Search your lockfiles and build artifacts for bnpl-blocks-desktop-bnpl-footer (version 35.2.6).

  2. If you installed it — respond

    bnpl-blocks-desktop-bnpl-footer 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-desktop-bnpl-footer 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-footer on npm has been identified as a malicious package (version 35.2.6 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-015464

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks bnpl-blocks-desktop-bnpl-footer-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

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bnpl-blocks-desktop-bnpl-footer (npm) malicious package — MAL-2026-12923 | O3 Security