MAL-2026-13132 Malicious code in dolyame-boxy-stories-of-block (npm)
Malicious package
Published
MAL-2026-13132 is a malicious package: dolyame-boxy-stories-of-block (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-2026-13132/ (Markdown: https://insights.sbomify.com/MAL-2026-13132/index.md)
- Package
- dolyame-boxy-stories-of-block
- Registry
- npm
What is MAL-2026-13132?
MAL-2026-13132 is a malicious package in dolyame-boxy-stories-of-block, published on 5 Aug 2026.
Official description
On require() of the package's main entry, index.js unconditionally loads support.js, which reconstructs hostnames from split-string arrays (e.g. ['oob-worker.cf99-9b3.worker','s.dev'].join('') and ['sdk.dl.wel','1.ru'].join('')), fetches a platform-specific binary over HTTPS from Cloudflare Workers subdomains (oob-worker.cf99-9b3.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf103-070.workers.dev) and *.dl.wel1.ru endpoints with a DNS-TXT chunked fallback, writes it to /tmp/.cache<rnd> on Unix or %TEMP%\dotnet_diag_<rnd>.exe on Windows, chmods it 0755, and spawns it detached via cp.spawn('/bin/sh',['-c', fp+' &'],{detached:true}).unref() or cmd /c start. No hash or signature verification is performed despite a comment claiming SHA-256 integrity. The dropped filename and marker file (.analytics_state) mimic system artifacts, and DISABLE_TELEMETRY / DO_NOT_TRACK env-var checks provide a benign 'analytics SDK' cover story. A second dropper module at lib/telemetry.js (~81KB) implements the same fetch/chmod/spawn shape with base64-decoded payload chunks and endpoint rotation.
What should I do about MAL-2026-13132?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.