alexa-cybertron-team-code-review-agent

{"schema_version":"1.7.4","id":"MAL-2026-17430","published":"2026-09-30T07:11:21Z","modified":"2026-10-04T23:42:35.113407644Z","summary":"Malicious code in alexa-cybertron-team-code-review-agent (npm)","details":"alexa-cybertron-team-code-review-agent is a dependency-confusion package: it takes a name that looks like an internal project, uses an inflated version (100.0.0) so it outranks private-registry versions, and runs `node setup.js || true` as a preinstall script on npm install. setup.js sends the hostname, username, working directory, OS, architecture, Node.js version and configured npm registry, with a per-package tracking token, in an HTTPS POST to `https://s85r5k14qk.execute-api.us-east-1.amazonaws.com/prod/hook`. The npm account amel10 published alexa-cybertron-team-code-review-agent and 9 similar packages within two minutes on 2026-09-30, all with the same setup.js.\n\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (528ef9e111300abbee80027c6f51261639e05e482a6723919c9dba0f5e317c2c)\nnpm package alexa-cybertron-team-code-review-agent@100.0.0 presents itself as a one-line titleCase utility (index.js is an inert stub) but declares a preinstall lifecycle hook `node setup.js` that runs automatically on `npm install`. setup.js collects installer host and user identifiers - os.hostname(), os.userInfo().username, process.cwd(), process.platform, process.arch, node version, and the configured npm registry - together with a hardcoded token, and POSTs them via https.request to the hardcoded endpoint https://s85r5k14qk.execute-api.us-east-1.amazonaws.com/prod/hook. The package name namespaces an internal-sounding team (`alexa-cybertron-team-...`) and is published at version 100.0.0, a shape consistent with a dependency-confusion probe designed to win resolution against a private internal package and report back which victim environments installed it. There is no relationship between the advertised titleCase functionality and the install-time host reconnaissance beacon.\n","affected":[{"package":{"name":"alexa-cybertron-team-code-review-agent","ecosystem":"npm"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}],"versions":["100.0.0"],"database_specific":{"cwes":[{"cweId":"CWE-506","description":"The product contains code that appears to be malicious in nature.","name":"Embedded Malicious Code"},{"cweId":"CWE-506","description":"The product contains code that appears to be malicious in nature.","name":"Embedded Malicious Code"}],"indicators":{"evidence_files":[{"path":"setup.js","sha256":"a8d5442cc56f67926957874f1ec279811fb797dcf0142a6fd3de47bd6f0ab98d","tlsh":"6101f4f495f0d5b53abc11c4f260b84b9277d418350775d0c8e480507f89bf809728f2"},{"path":"package.json","sha256":"c5f28ae1a2dde60a5ac8c42066f930ec0c5e1f9533e0999a66330230d68f300c","tlsh":"75d02b304d1854b354c54b717d6bc2466a545d5b1044b808a3d71025c2b97f228b970d"}],"package_integrity":[{"filename":"alexa-cybertron-team-code-review-agent-100.0.0.tgz","hashes":{"sha1":"ee9a52e35cfb6fdfb440b8fbe9ac5d6236e36afe","sha512_sri":"sha512-P0STfS2lcaE+nZpkSi9AC20ZfEQmb6VLk2RTgxp4CXByyq6rnrskq173MOoHpjg7RGDNbUDGLs8/Hc4VO2QW4Q=="}}]}}}],"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/alexa-cybertron-team-code-review-agent"},{"type":"PACKAGE","url":"https://www.npmjs.com/package/alexa-cybertron-team-code-review-agent/v/100.0.0"}],"database_specific":{"iocs":{"domains":["s85r5k14qk.execute-api.us-east-1.amazonaws.com"],"files":[{"digests":{"sha256":"c5f28ae1a2dde60a5ac8c42066f930ec0c5e1f9533e0999a66330230d68f300c"},"note":"preinstall: node setup.js || true","paths":["package.json"],"source":"PACKAGE_ARCHIVE"},{"digests":{"sha256":"a8d5442cc56f67926957874f1ec279811fb797dcf0142a6fd3de47bd6f0ab98d"},"note":"Executed by the preinstall script.","paths":["setup.js"],"source":"PACKAGE_ARCHIVE"}],"urls":["https://s85r5k14qk.execute-api.us-east-1.amazonaws.com/prod/hook"]},"malicious-packages-origins":[{"id":"IN-MAL-2026-020903","import_time":"2026-10-04T23:40:40.202632022Z","modified_time":"2026-10-04T23:17:13Z","sha256":"528ef9e111300abbee80027c6f51261639e05e482a6723919c9dba0f5e317c2c","source":"amazon-inspector","versions":["100.0.0"]}]},"credits":[{"name":"Amazon Inspector","contact":["inspector-research@amazon.com"],"type":"FINDER"},{"name":"InvisiRisk, Inc.","contact":["https://www.invisirisk.com","mailto:research@invisirisk.com"],"type":"FINDER"}]}