bnpl-blocks-desktop-bnpl-news-cardsnpm
bnpl-blocks-desktop-bnpl-news-cards is a confirmed malicious npm package (MAL-2026-12933) that opens a backdoor for remote access (malicious version 35.3.8). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in bnpl-blocks-desktop-bnpl-news-cards (npm)
What this malware does
On require(), index.js loads shim.js which reconstructs C2 hostnames from split string arrays (Cloudflare Workers subdomains oob-worker.cf99-9b3.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf101-adf.workers.dev) with a DNS-TXT fallback resolver chain (sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, net.dl.wel1.ru), downloads a platform-specific binary via https.get to /pkg/package or /pkg/package.exe, writes it to /var/tmp/.cache<hex> on Unix or %TEMP%\dotnet_diag_<hex>.exe on Windows, chmods it 0755, and spawns it detached via /bin/sh -c or cmd with.unref(). Filesystem stamp and env-var checks are used to avoid repeat execution. Cover-story comments ("analytics", "telemetry", "CDN compatibility") accompany the obfuscated destinations. The behavior has no relation to the package's stated purpose.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Backdoor / remote accessFind it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for bnpl-blocks-desktop-bnpl-news-cards (version 35.3.8). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging bnpl-blocks-desktop-bnpl-news-cards across your stack and pipelines.
If you installed it — respond
bnpl-blocks-desktop-bnpl-news-cards 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.
Did it already run?
If bnpl-blocks-desktop-bnpl-news-cards was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.
How O3 protects you
O3 blocks bnpl-blocks-desktop-bnpl-news-cards before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.
Frequently asked questions
Campaign
References
Credits
- Amazon Inspector · finder
Detect & block this
O3 blocks bnpl-blocks-desktop-bnpl-news-cards-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the C2 callback and severs the channel.