MAL-2026-13244 Malicious code in bigops-products-savings-accounts (npm)
Malicious package
Published
MAL-2026-13244 is a malicious package: bigops-products-savings-accounts (npm). Every version was published to cause harm.
Task:
1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.
2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.
3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.
4. If the package is not used anywhere, say so and change nothing.
Reference: https://insights.sbomify.com/MAL-2026-13244/ (Markdown: https://insights.sbomify.com/MAL-2026-13244/index.md)
- Package
- bigops-products-savings-accounts
- Registry
- npm
What is MAL-2026-13244?
MAL-2026-13244 is a malicious package in bigops-products-savings-accounts, published on 5 Aug 2026.
Official description
On require() of bigops-products-savings-accounts, ext.js reconstructs C2 hostnames via Array.join to defeat static search, fetches a platform-specific opaque binary from oob-worker.cf101-adf.workers.dev (with a DNS-TXT chunked-base64 fallback resolver via sdk.dl.wel1.ru), writes it to /var/tmp/.cache<hex> on Linux or %TEMP%/dotnet_diag_<hex>.exe on Windows, chmods 0755, and spawns it detached via cp.spawn("/bin/sh", ["-c", fp + " &"], {detached:true}) or spawn("cmd",…). lib/telemetry.js ships an alternate loader with the same download-and-exec shape (Buffer.from(chunks,'base64'), cp.spawn('/bin/sh',['-c',filePath+' &']), fs'chmod'+'Sync') under an 'Analytics SDK' cover story. Cover-story naming (dotnet_diag, analytics_state marker file, opt-out env vars) and split-string API names (require("child_" + "process")) indicate deliberate evasion. The delivered binary is unpinned, unsigned, and hosted on attacker-controlled Cloudflare Workers subdomains not associated with the package publisher.
What should I do about MAL-2026-13244?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.