MAL-2026-5609 Malicious code in clean-my-pc (npm)
Malicious package
Published
MAL-2026-5609 is a malicious package: clean-my-pc (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-2026-5609/ (Markdown: https://insights.sbomify.com/MAL-2026-5609/index.md)
- Package
- clean-my-pc
- Registry
- npm
What is MAL-2026-5609?
MAL-2026-5609 is a malicious package in clean-my-pc, published on 11 Jun 2026.
Official description
The package's collect.js imports child_process, fs, http, https, and os, gathers host identifiers via os.hostname() and os.homedir(), reads files from the local filesystem (fs.existsSync checks at lines 20 and 27), and POSTs the collected data to a hardcoded external endpoint at http://aab.sportsontheweb.net (referenced at line 13, with the POST request at line 366). The destination domain is unrelated to any legitimate PC-cleaning utility purpose and matches the structural fingerprint of a host-information / filesystem exfiltration beacon: hardcoded non-publisher C2 + system identity collection + outbound POST. Installing or loading this package causes the installer's hostname, home-directory contents indicator, and other host data to be transmitted to the attacker-controlled endpoint over plaintext HTTP.
What should I do about MAL-2026-5609?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.