{"answers":{"affected":"1 open source package ship an affected version, including ded-pwa-c-boxy.","exploited":"There is no known exploitation of MAL-2026-13533 in the wild and no public exploit code.","fix":"Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.","what":"MAL-2026-13533 is a malicious package in ded-pwa-c-boxy, published on 7 Aug 2026."},"fix_prompt":"MAL-2026-13533 is a malicious package: ded-pwa-c-boxy (npm). Every version was published to cause harm.\n\nTask:\n1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.\n2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.\n3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.\n4. If the package is not used anywhere, say so and change nothing.\n\nReference: https://insights.sbomify.com/MAL-2026-13533/ (Markdown: https://insights.sbomify.com/MAL-2026-13533/index.md)","id":"MAL-2026-13533","markdown":"https://insights.sbomify.com/MAL-2026-13533/index.md","name":"MAL-2026-13533","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"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_\u003chex\u003e / dotnet_diag_\u003chex\u003e.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.","ecosystems":["npm"],"exploits":{"exploitdb":null,"first_seen":null,"github_poc":null,"max_poc_stars":null,"metasploit":null,"nuclei":null,"refs":[],"tier":null},"has_fix":false,"headline":"Malicious code in ded-pwa-c-boxy (npm)","id":"MAL-2026-13533","indexable":true,"kev":null,"kind":"malicious","links":{"ecosystem":"npm","product":null,"products":[],"type":null,"year":"2026"},"n_packages":1,"n_references":null,"packages":[{"ecosystem":"npm","fixed":[],"introduced":[],"last_affected":[],"package":"ded-pwa-c-boxy","purl":"pkg:npm/ded-pwa-c-boxy","source":"MAL-2026-13533"}],"products":null,"published":"2026-08-07","related":[],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"OpenSSF Malicious Packages","prefix":"MAL"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":null,"updated":null,"vendors":null},"summary":null,"url":"https://insights.sbomify.com/MAL-2026-13533/"}