VYPR

npm · Malicious package advisory

Malware

ksp-client-registry

MAL-2026-17771

Malicious code in ksp-client-registry (npm)

Details


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## Source: amazon-inspector (3b11a639f5149e4b1c17e64eb78f226abece5ed03152b5933333a3cb56284018)
The npm package [email protected] ships a prebuilt native addon at prebuilds/linux-x64/addon.node that is loaded by the package main (index.js require of./prebuilds/linux-x64/addon). On load the addon reads the HOSTNAME, npm_package_name, and npm_config_registry environment variables and opens a raw TCP socket to the hardcoded IP 64.181.165.115, sending them in an HTTP request of the form 'POST /dc HTTP/1.0' with a body shaped as 'h=<hostname>&p=<package>&u=<user>&r=<registry>'. ELF strings corroborate the behavior: '64.181.165.115', 'POST /dc HTTP/1.0', 'Host: 64.181.165.115', 'HOSTNAME', 'npm_package_name', 'npm_config_registry', and imports of socket/connect/send/fork/getenv/inet_pton. package.json declares a postinstall ('node postinstall.js') providing an install-time footprint, and any require() of the package triggers the beacon regardless. The addon exposes no legitimate N-API functionality beyond module registration. The implausibly high version (100.100.100) and generic registry-style name are consistent with a dependency-confusion probe designed to be resolved in place of an internal package and to report back the victim host, internal package name, and configured registry URL to the operator.

Compromised versions (2)

  • 100.100.100
  • 100.100.101

Any computer that installed or ran a compromised version should be considered fully compromised. Rotate every secret on that machine from a clean environment.