MAL-2026-14448 Malicious code in classroomhomework (npm)

The package's index.html impersonates Google Classroom (title, gstatic favicon, hardcoded student email [email protected], decoy schedule/gradebook code explicitly commented // --- decoy classroom functionality below ---) as a cover for a remote-fetch-and-execute primitive. Embedded JavaScript reconstructs a fragmented path from a _paths array (["/gh/", "s0n-1m-", "cr1n3/", "sc13nc3/", "assets/", "index.html"]) joined at runtime to form /gh/s0n-1m-cr1n3/sc13nc3/assets/index.html, prefixes a jsDelivr mirror host, fetches the URL, and writes the response body into a new browser tab via document.write, which parses and executes it as HTML/JS. A setTimeout fires the fetch automatically 500 ms after page load, and a hidden class code modal (m1..m5) triggers the same fetch on demand. Because the jsDelivr path targets a personal GitHub repository (s0n-1m-cr1n3/sc13nc3) pinned to no commit, the operator can swap the delivered payload at any time. The split-string obfuscation of the destination and the author-labeled decoy UI show intent to conceal the delivery channel behind a Google Classroom facade.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.