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Malicious package

bnpl-blocks-scrollnpm

Advisory published Updated

bnpl-blocks-scroll is a confirmed malicious npm package (MAL-2026-13015) that steals credentials and exfiltrates sensitive data (malicious version 35.2.6). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in bnpl-blocks-scroll (npm)

MAL-2026-13015
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall bnpl-blocks-scroll

What this malware does

On require() of bnpl-blocks-scroll, index.js loads helpers.js, which selects a platform-specific payload path and fetches an opaque native executable via https.get from one of three Cloudflare Workers hosts whose names are assembled at runtime by joining string fragments (oob-worker.cf100-416.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf103-070.workers.dev). If the HTTPS mirrors fail, the code reconstructs the payload from base64-encoded DNS TXT records under a platform-specific subdomain of wel1.ru (dns.resolveTxt on c.<domain>, resolvers themselves assembled by [].join('')). The retrieved bytes are written to /tmp or %TEMP% under disguised names (.cache<hex> on unix, dotnet_diag_<hex>.exe on Windows), chmod 0755, then spawned detached via cp.spawn('/bin/sh', ['-c', fp+' &'], {detached:true}).unref() or spawn('cmd',...). A.analytics_state cooldown file and honoring of DISABLE_TELEMETRY/ANALYTICS_OPT_OUT/DO_NOT_TRACK env vars provide a telemetry cover story that does not match the actual behavior (fetching and executing an unpinned, unverified native binary). Host-name string-splitting, DNS-over-TXT fallback transport, cover-story filenames, and detached execution together constitute a deliberate remote-code-execution dropper against any machine that installs or imports this package.

Malicious versions

1 flagged
35.2.6

Indicators of compromise (SHA-256)

99a0a2e3786f50dc07b4546de5ae22f3a65ad50e95897b8ca4d0fa6460b32d63

Detection & response playbook

Credential / info stealer
  1. Find it

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

  2. If you installed it — respond

    bnpl-blocks-scroll 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.

  3. Did it already run?

    If bnpl-blocks-scroll 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-scroll 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-2026-015369

References

Credits

  • Amazon Inspector · finder

Detect & block this

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

Explore

bnpl-blocks-scroll (npm) malicious package — MAL-2026-13015 | O3 Security