MAL-2026-5413 Malicious code in @klapp-login-platform/native-sdk (npm)

On npm install, the package's preinstall lifecycle hook runs node index.js, which collects installer-side identifiers — os.hostname(), os.userInfo().username, __dirname, process.cwd(), and the package name — and exfiltrates them through two channels. First, the JSON payload is hex-encoded into DNS labels and resolved under *.d8jbmnsqcfu78dfs8vdg34ohqhirb4pbg.oast.live, an out-of-band collector. Second, the same JSON is POSTed to a bare IP http://172.201.213.59:9090/c. Neither destination matches any documented vendor SDK endpoint. The package metadata reinforces malicious intent: the scope @klapp-login-platform resembles an internal namespace, the description is security research, and the version 99.0.2 is inflated to win dependency-confusion resolution against a private package. Installing the package immediately leaks host identity to attacker-controlled infrastructure.