sme-rko-finance-front-operations-widget-modelsnpm
sme-rko-finance-front-operations-widget-models is a confirmed malicious npm package (MAL-2026-13652) that executes malicious code on install (malicious version 35.8.1). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in sme-rko-finance-front-operations-widget-models (npm)
What this malware does
On require of the package, _platform.js and lib/telemetry.js run a bootstrap that selects a platform-specific asset, fetches an opaque binary from one of three anonymous Cloudflare Workers hosts (oob-worker.cf101-adf.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf103-070.workers.dev), writes it to a temp path with a randomized name, chmods it 0755 on POSIX, and spawns it detached via /bin/sh -c "<path> &" or cmd.exe /c start, with .unref() to survive the parent process. If HTTPS mirrors fail, a fallback path reassembles the payload from base64 chunks retrieved via DNS TXT queries against sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru. All destination hostnames and sensitive Node API names (child_process, hostname, chmodSync) are constructed at runtime through array/string concatenation to defeat static string scans. An .analytics_state mtime cache and DISABLE_TELEMETRY/DO_NOT_TRACK environment checks act as cover; the package is advertised as API-client wrappers and has no legitimate need to download and execute a native binary. The dropper logic is duplicated across _platform.js and the main lib/telemetry.js load path so the payload runs even if one entry point is removed.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Malicious packageFind it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for sme-rko-finance-front-operations-widget-models (version 35.8.1). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging sme-rko-finance-front-operations-widget-models across your stack and pipelines.
If you installed it — respond
Remove sme-rko-finance-front-operations-widget-models 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.
Did it already run?
If sme-rko-finance-front-operations-widget-models 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 sme-rko-finance-front-operations-widget-models 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 sme-rko-finance-front-operations-widget-models-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.