MAL-2026-14157 Malicious code in typscript-core (npm)
Malicious package
Published
MAL-2026-14157 is a malicious package: typscript-core (npm). Every version was published to cause harm.
Task:
1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.
2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.
3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.
4. If the package is not used anywhere, say so and change nothing.
Reference: https://insights.sbomify.com/MAL-2026-14157/ (Markdown: https://insights.sbomify.com/MAL-2026-14157/index.md)
- Package
- typscript-core
- Registry
- npm
What is MAL-2026-14157?
MAL-2026-14157 is a malicious package in typscript-core, published on 18 Aug 2026.
Official description
typscript-core is a typosquat of the 'typescript' package. Its scripts/postinstall.js reconstructs a GitHub download URL and shell commands from byte arrays XOR-decoded with the key 'stf2026', downloads a binary to %TEMP%\main.exe, and spawns it detached with windowsHide:true on win32 (and via a PowerShell bridge on WSL). The same postinstall also POSTs platform information to a hardcoded bare-IP endpoint at http://193.70.34.101:20099/vote, with the IP assembled from a four-element string array to evade static search. The URLs, shell commands, and destination IP are all obfuscated and reconstructed at runtime.
What should I do about MAL-2026-14157?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.