{"answers":{"affected":"1 open source package ship an affected version, including testingsmthb1g.","exploited":"There is no known exploitation of MAL-2026-14142 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-2026-14142 is a malicious package in testingsmthb1g, published on 18 Aug 2026."},"fix_prompt":"MAL-2026-14142 is a malicious package: testingsmthb1g (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-2026-14142/ (Markdown: https://insights.sbomify.com/MAL-2026-14142/index.md)","id":"MAL-2026-14142","markdown":"https://insights.sbomify.com/MAL-2026-14142/index.md","name":"MAL-2026-14142","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"scripts/postinstall.js runs at npm install and performs an install-time dropper chain. A URL stored as an integer array is XOR-decoded (key 'stf2026') to https://github.com/bebraz1/qPzM50V1AKG0rVlH/releases/download/null/main.exe — a personal GitHub account unrelated to the package publisher, at a random-named repository with a mutable 'null' release tag. On Windows, the script downloads this binary to the TEMP directory and spawns it detached with stdio ignored. On WSL/virtualized Linux, the script detects the environment via /proc/version and WSL_DISTRO_NAME, assembles an XOR-decoded PowerShell command line, and executes it via exec() to fetch and run the same payload on the Windows host, escaping the Linux sandbox. In parallel, the script POSTs a platform label to a hardcoded bare-IP endpoint http://193.70.34.101:20099/vote whose hostname is constructed via split-join to evade string matching. The destination URL, PowerShell command, and shell fragments are all XOR-obfuscated integer arrays reconstructed at runtime.","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 testingsmthb1g (npm)","id":"MAL-2026-14142","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":"testingsmthb1g","purl":"pkg:npm/testingsmthb1g","source":"MAL-2026-14142"}],"products":null,"published":"2026-08-18","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-2026-14142/"}