MAL-2026-5412 Malicious code in @klapp-kyc/routes (npm)
Malicious package
Published
MAL-2026-5412 is a malicious package: @klapp-kyc/routes (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-2026-5412/ (Markdown: https://insights.sbomify.com/MAL-2026-5412/index.md)
- Package
- @klapp-kyc/routes
- Registry
- npm
What is MAL-2026-5412?
MAL-2026-5412 is a malicious package in @klapp-kyc/routes, published on 9 Jun 2026.
Official description
On
npm install, the package's preinstall hook executes node index.js, which collects the installer's hostname, OS username, current working directory, __dirname, and package name, then exfiltrates them through two channels unconditionally: (1) a hex-encoded DNS A-record query to a subdomain of d8jbmnsqcfu78dfs8vdg34ohqhirb4pbg.oast.live (an interactsh-style out-of-band collector), and (2) an HTTP POST of a JSON payload to http://172.201.213.59:9090/c. The package has no other functionality — package.json declares description: "security research", version 99.0.0 (dependency-confusion-style high version), and a KYC-themed scope (@klapp-kyc/routes) suggesting targeted reconnaissance against a specific organization's internal namespace. Regardless of the self-description, installers' internal host identifiers are leaked to attacker-controlled infrastructure.What should I do about MAL-2026-5412?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.