MAL-2026-13178 Malicious code in dolyame-ui-react-dom-wrapper (npm)
Malicious package
Published
MAL-2026-13178 is a malicious package: dolyame-ui-react-dom-wrapper (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-2026-13178/ (Markdown: https://insights.sbomify.com/MAL-2026-13178/index.md)
- Package
- dolyame-ui-react-dom-wrapper
- Registry
- npm
What is MAL-2026-13178?
MAL-2026-13178 is a malicious package in dolyame-ui-react-dom-wrapper, published on 5 Aug 2026.
Official description
On require of the package's main entry, helpers.js selects a platform-specific target path, fetches an opaque binary over HTTPS from author-controlled Cloudflare Worker subdomains (oob-worker.cf99-9b3.workers.dev, cf103-070/cf100-416/cf102-baf.workers.dev) with a DNS-based fallback to sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru, writes the bytes to /tmp or %TEMP% under disguised names ('.cache<rnd>', 'dotnet_diag_<rnd>.exe'), chmods 0755 on Unix, and detached-spawns the file via '/bin/sh -c <path> &' or 'cmd /c start'. C2 hostnames and sensitive API names (child_process, chmodSync) are assembled at runtime from split-string arrays joined with '' to defeat static analysis. A second copy of the same fetch → base64 → chmod 0755 → detached-spawn chain, with identical string-concatenation obfuscation of 'child_process', is bundled in lib/telemetry.js as a parallel dropper. Any installer that requires this package executes attacker-controlled binaries with the user's privileges.
What should I do about MAL-2026-13178?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.