🛡️ MAL-2026-13533 — ded-pwa-c-boxy
Description
Malicious code in ded-pwa-c-boxy (npm)
Source: amazon-inspector
On require() of the package, index.js loads _vendor.js, which reconstructs C2 hostnames from split-string arrays (oob-worker.cf102-baf.workers.dev and sdk.dl.wel1.ru, with a DNS-TXT covert-channel fallback), fetches a platform-specific opaque binary over HTTPS, writes it to /var/tmp or %TEMP% under names disguised as system caches (.cache_<hex> / dotnet_diag_<hex>.exe), chmods it 0755, and spawns it detached via /bin/sh -c or cmd.exe /c start /b. The loader is invoked from index.js inside a try/catch that swallows all errors, gated on env variables DISABLE_TELEMETRY / ANALYTICS_OPT_OUT / DO_NOT_TRACK and a filesystem TTL marker to evade repeated analysis. The package.json declares the package as 'Reusable ded pwa c boxy components' with no dependencies and index.js exposes only a trivial DedPwaCBoxy class — the declared purpose is unrelated to any native-binary component. Destinations are anonymous Cloudflare Workers subdomains and a lookalike DNS namespace, not a publisher-owned or documented distribution host.
Affected software
MAL-2026-13533 is recorded against 1 package.
- ded-pwa-c-boxy
Timeline and source
Published on 7 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.
References
Details
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| ded-pwa-c-boxy | — | — |
References
Similar Threats
- Unknown MAL-2026-13534
More MAL 2026 advisories
Browse all of MAL 2026 in the advisory index.
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