{"id":"MAL-2026-16253","revision":null,"records":[{"revision":"24ebcbf31d964f0e8d3c667224e896bf","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"MAL-2026-16253","aliases":[],"title":"Malicious code in laycot (npm)","description":"This package is part of a malicious npm campaign published by the `laycot` account. Importing the package automatically launches a detached JavaScript loader that retrieves and executes additional code from npoint.io. The retrieved payload communicates with an attacker-controlled server and implements clipboard collection, keyboard and mouse event collection, filesystem scanning, and theft of Chrome extension storage.\n\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (888eb7470e3887d76a6ecd9ccb3c635fac2e5c9c2726550b2047f7e52d6c6062)\nOn import, index.js unconditionally calls initialize(), which spawns loader.js as a detached, unref'd, stdio-suppressed child process (windowsHide:true) and writes a.pid file to enforce singleton persistence. loader.js issues an HTTPS GET to https://api.npoint.io/641d37178a880b1e8b8f — a free anonymous JSON-hosting service whose content is fully mutable by whoever holds the bin's edit token — base64-decodes the `code` field of the JSON response, and executes it via `new Function('require','__dirname','__filename','module','exports', decodedCode)`, granting the fetched bytes full Node privileges including `require`. The package's declared identity is a cover story: package.json describes laycot as 'all pro layout cat visible smooth' with education/advanced-testing keywords, the README presents it as `runtime-utils`/`image-utils` with a fake `getProcessInfo` API, and the fetch URL is stored in a variable named `API_KEY` to obscure that it is an HTTP endpoint. The shipped code has no functionality matching any of these descriptions; its sole runtime behavior is the remote-fetch-and-eval loader.\n","state":0,"publishedAt":"2026-09-16T23:57:52+00:00","modifiedAt":"2026-09-18T01:15:05.2056445+00:00","affected":[{"ecosystem":"npm","name":"laycot","ranges":[],"versions":["1.3.10"],"rawVersionEvidence":null}],"metrics":[],"references":["https://www.npmjs.com/package/laycot/v/1.3.10"],"sourceUrl":"https://osv.dev/vulnerability/MAL-2026-16253","license":"OSV · upstream source license applies","key":"osv:MAL-2026-16253","identifiers":["MAL-2026-16253"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-13T05:18:48.7948660+00:00","complete":true,"records":1779,"lastAttemptAt":"2026-11-13T05:18:48.794866+00:00","lastSuccessAt":"2026-11-13T05:18:48.9994933+00:00","error":null,"lastVerifiedAt":"2026-11-13T05:18:48.9995061+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-d8fa82e95fdb59244e2f635e667ba17f0796ca0a4f1f4bb8cc31febcd660b76c-1c5172d098efb637fed8eab7555210eb25d4abf20f74026a02377bb1124cd3de","complete":true,"records":424960,"lastAttemptAt":"2026-11-13T05:16:37.7971751+00:00","lastSuccessAt":"2026-11-13T05:16:37.7566327+00:00","error":null,"lastVerifiedAt":"2026-11-13T05:16:37.7971751+00:00","snapshotPublishedAt":"2026-11-13T04:23:58+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-81649827bed04d178218ae3481877efc","complete":false,"records":13793,"lastAttemptAt":"2026-11-13T05:28:42.5594492+00:00","lastSuccessAt":"2026-11-13T05:28:42.555+00:00","error":"563 identifier lookups failed; latest failures include AccessDenied (HTTP 403). Other identifiers were checked independently.","lastVerifiedAt":"2026-11-13T05:28:42.555+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13226,"expectedIdentifiers":13846,"failedIdentifiers":563},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-13T05:18:48.7948660+00:00","complete":true,"records":1123,"lastAttemptAt":"2026-11-13T05:18:48.794866+00:00","lastSuccessAt":"2026-11-13T05:18:49.0004529+00:00","error":null,"lastVerifiedAt":"2026-11-13T05:18:49.0004538+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-77eeb9ad53d240dc91f8e3d507ac52a2","complete":false,"records":13781,"lastAttemptAt":"2026-11-13T05:18:54.2339757+00:00","lastSuccessAt":"2026-11-13T04:18:42.877+00:00","error":"12 identifier lookups failed; latest failures include HttpError (HTTP 503). Other identifiers were checked independently.","lastVerifiedAt":"2026-11-13T04:18:42.877+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13834,"expectedIdentifiers":13846,"failedIdentifiers":12},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-93e76d404e1aeb6a7e8902f5ffa06211fc86dea3b1958e297abb2668aa5e6e8c","complete":true,"records":9952,"lastAttemptAt":"2026-11-13T05:18:48.714791+00:00","lastSuccessAt":"2026-11-12T23:19:15.5239119+00:00","error":null,"lastVerifiedAt":"2026-11-13T05:18:48.714791+00:00","snapshotPublishedAt":"2026-11-12T23:03:02+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-4d60731753a2f72e455d1086e7203d0ef10843936dcc1cf2b45135e2caa204b0","complete":true,"records":2012,"lastAttemptAt":"2026-11-13T05:16:37.937734+00:00","lastSuccessAt":"2026-11-12T18:16:50.7862525+00:00","error":null,"lastVerifiedAt":"2026-11-13T05:16:37.937734+00:00","snapshotPublishedAt":"2026-11-12T17:48:11+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-20d1a8ab073a1c13ab2143dbcadb34ebb8edf1e18e16482b448513662c3d1e12","complete":true,"records":3127,"lastAttemptAt":"2026-11-13T05:18:48.7320885+00:00","lastSuccessAt":"2026-11-12T22:18:31.0338213+00:00","error":null,"lastVerifiedAt":"2026-11-13T05:18:48.7320885+00:00","snapshotPublishedAt":"2026-11-12T22:18:06+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-9c400afecc368c19e27d85b853d7f36c26a1688896f9e96b3e569d052492b938","complete":true,"records":231765,"lastAttemptAt":"2026-11-13T05:18:48.5554824+00:00","lastSuccessAt":"2026-11-13T05:18:46.7416005+00:00","error":null,"lastVerifiedAt":"2026-11-13T05:18:48.5554824+00:00","snapshotPublishedAt":"2026-11-13T04:48:05+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}