Which versions of bnpl-blocks-types are malicious?

The following npm versions of bnpl-blocks-types are flagged malicious: 35.2.1. Treat any of these as compromised.

How do I remediate bnpl-blocks-types if I installed it?

bnpl-blocks-types is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.

I already installed bnpl-blocks-types — how do I know if it already compromised me?

If bnpl-blocks-types 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.

Is bnpl-blocks-types part of a known attack campaign?

Yes — bnpl-blocks-types is associated with the IN-MAL-2026-015350 campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

How do I find bnpl-blocks-types across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for bnpl-blocks-types (version 35.2.1).

Malicious package

bnpl-blocks-typesnpm

Advisory published Aug 5, 2026Updated Aug 5, 2026

bnpl-blocks-types is a confirmed malicious npm package (MAL-2026-13020) that steals credentials and exfiltrates sensitive data (malicious version 35.2.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in bnpl-blocks-types (npm)

MAL-2026-13020

Immediate action

Remove the package, then rotate any secrets the build/runtime could reach.

npm uninstall bnpl-blocks-types

What this malware does

On require() of bnpl-blocks-types, index.js loads helpers.js which selects a platform-specific path (/pkg/package, /pkg/package.exe, /pkg/loader_mac, /pkg/package-arm64) and downloads a binary from hostnames reconstructed at runtime via array.join to defeat static inspection: oob-worker.cf102-baf.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf100-416.workers.dev, and oob-worker.cf99-9b3.workers.dev. If HTTPS retrieval fails, a fallback assembles the payload from base64-encoded DNS TXT records under sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru. The fetched bytes are written to /var/tmp or %TEMP% under decoy names (dotnet_diag<hex>.exe on Windows, hidden.cache_<hex> on Unix), chmod 0755, and spawned detached and unref'd via cp.spawn('/bin/sh', ['-c', fp + ' &'], {detached:true}). A second dropper copy is staged as lib/telemetry.js (81 KB, framed as an analytics SDK) containing the same base64-assemble, chmod 0755, and detached /bin/sh spawn pattern, with require('child_'+'process') and fs['chmod'+'Sync'] string-split obfuscation. Behavior is guarded by an mtime cache and opt-out env vars, consistent with a persistent, staged install-time dropper.

Malicious versions

1 flagged

35.2.1

Indicators of compromise (SHA-256)

e5570ecd44264d28f2c2378da5c6cd23e562e696687adb01ab10b373c91e6560

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for bnpl-blocks-types (version 35.2.1).
If you installed it — respond
bnpl-blocks-types is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.
Did it already run?
If bnpl-blocks-types 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-types on npm has been identified as a malicious package (version 35.2.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-015350

References

npmjs.com

Credits

Amazon Inspector · finder

Detect & block this

O3 blocks bnpl-blocks-types-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Malware detection Runtime egress monitoring

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