{"id":"MAL-2026-17296","summary":"Malicious code in test-agency-assignment-01 (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (2098eadf99f0ffe4dc04f478ed085034d30415cb52201be4f36f688298abc46e)\nThe tarball contains only package.json and an 8.4 MB Go-compiled Windows executable, Kelimasow.exe (sha256 875c7641dc980538f3c3d8b344d173f97cf64a5d97dcf88d8e2932c83b876b92). package.json declares scripts.postinstall = \"Kelimasow.exe\", so npm install auto-executes this binary on any Windows host. The package has no library code (main points at a nonexistent index.js), no README, no source, no build system, and empty description/author/repository fields, so there is no advertised purpose that would justify shipping an opaque native executable and no way to inspect what the binary does before it runs. Auto-executing a bundled opaque native binary from a package lifecycle hook, with no accompanying source or declared purpose, is the canonical install-time-RCE dropper shape.\n","modified":"2026-09-29T23:30:05.061856778Z","published":"2026-09-29T23:05:53Z","database_specific":{"malicious-packages-origins":[{"import_time":"2026-09-29T23:17:35.445384579Z","modified_time":"2026-09-29T23:05:53Z","sha256":"2098eadf99f0ffe4dc04f478ed085034d30415cb52201be4f36f688298abc46e","source":"amazon-inspector","versions":["1.0.5"],"id":"IN-MAL-2026-020693"}]},"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/test-agency-assignment-01/v/1.0.5"}],"affected":[{"package":{"name":"test-agency-assignment-01","ecosystem":"npm","purl":"pkg:npm/test-agency-assignment-01"},"versions":["1.0.5"],"database_specific":{"cwes":[{"cweId":"CWE-506","description":"The product contains code that appears to be malicious in nature.","name":"Embedded Malicious Code"}],"indicators":{"evidence_files":[{"sha256":"77515e56e3703711c39daf49067f3141f00f74ca8ceddb99bacfb931b3bd3e26","tlsh":"30d0a7234411557325f446640935a51ab512cf1f60b41c0bb1f3191851e3a724898b07","path":"package.json"}],"package_integrity":[{"filename":"test-agency-assignment-01-1.0.5.tgz","hashes":{"sha512_sri":"sha512-1C322l2snArCescGGHIWJ0SVLPhXxjVfAoP7TeTOa+r9LaSdDdTHegl0XC3rs3Uita3q1PcP8GGMAxr8cmtR7w==","sha1":"21b861376702dd51d6a8db6c8787c1a8aae0641a"}}]},"source":"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/test-agency-assignment-01/MAL-2026-17296.json"}}],"schema_version":"1.9.0","credits":[{"name":"Amazon Inspector","contact":["inspector-research@amazon.com"],"type":"FINDER"}]}