MAL-2026-13065
Dashboard / Malicious Package / MAL-2026-13065
MAL-2026-13065
Summary: Malicious code in boxy-maker-sticky (npm)
Details: Source: amazon-inspector (dc3701b8f91a045a21b2a07ba76082afea03e4aea2c9a87a1c1e40e2de88c3b0) On require() of boxy-maker-sticky, index.js loads _runtime.js which reconstructs C2 hostnames from split string fragments ("oob-worker.cf103-0"+"70.worke"+"rs.dev" and "sdk.dl.we"+"l1.ru"), performs an https.get against those hosts to download a platform-specific binary, writes it to a temp directory under a disguised filename (dotnet_diag_<rand>.exe on Windows,.cache_<rand> on POSIX), chmods it 0755, and spawns it detached via cmd.exe or /bin/sh -c with.unref(). A DNS-TXT chunked fallback path resolves further payload data through *.dl.wel1.ru. A.analytics_state file is written as a persistence/timestamp marker. The fetched content is unpinned, unverified, and unrelated to any stated package purpose; hostname obfuscation via runtime string joining is deliberate evasion. The behavior fires automatically on module load, giving whoever controls the origin hosts arbitrary code execution on the installer's machine.
Affected packages
Package
Name: boxy-maker-sticky
Purl: pkg:npm/boxy-maker-sticky
Affected ranges
Type: N/A
Events:
