MAL-2026-12524 Malicious code in cards-forms-clone-cards-core-clone (npm)

Malicious package Published
Package
cards-forms-clone-cards-core-clone
Registry
npm

What is MAL-2026-12524?

MAL-2026-12524 is a malicious package in cards-forms-clone-cards-core-clone, published on 5 Aug 2026.

Official description

On require(), index.js loads platform.js, which selects a platform-specific asset URL from obfuscated hostnames assembled via split-then-join string fragments (oob-worker.cf102-baf.workers.dev, cf103-070, cf99-9b3, cf100-416 workers.dev hosts, plus a DNS-TXT chunked fallback to *.dl.wel1.ru), downloads the payload, writes it to a hidden temp file, chmods it 0755 (or names it dotnet_diag*.exe on Windows), and spawns it detached via /bin/sh -c or cmd.exe /c start /b. A stamp file named.analytics_state and env gates DISABLE_TELEMETRY/ANALYTICS_OPT_OUT/DO_NOT_TRACK provide a telemetry cover story; the package's advertised purpose is a base framework module unrelated to any such behavior. String-fragment obfuscation of the destination hosts and the masquerading filenames are deliberate evasion.

What should I do about MAL-2026-12524?

Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.

Sources

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