{"id":"MAL-2026-17512","revision":null,"records":[{"revision":"2d890b1aea1b46708f280ef1f5e1bcb9","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"MAL-2026-17512","aliases":[],"title":"Malicious code in lite-matte (npm)","description":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (4e7b0ae9e42c334c1c22627e60add7a2c5a0d558a2ab65a3af0043e27bb0e686)\npackage.json declares `\"postinstall\": \"wscript.exe 4444.vbs\"`, causing `npm install` to auto-execute a ~765KB Windows Script Host file shipped in the tarball. 4444.vbs is heavily obfuscated: it reconstructs COM ProgIDs (ADODB.Stream, MSXML2.XMLHTTP) at runtime via a Chr/XOR helper, uses XOR-masked hex tables for AES S-boxes and SHA-256 round constants, and stores its real payload as ~700 Base64-shaped chunks in an `ArtifactBundleHX` array decrypted through AES-256-CBC followed by ChaCha20-IETF. The decrypted PowerShell loader is written to `%TEMP%` and handed off to powershell.exe with comments indicating process hollowing. The declared package purpose (a trivial 60-line zod-based email domain checker at src/index.js) is unrelated to the dropper, and the README explicitly states 'No installation scripts. No network requests.' while the manifest ships exactly that. Header cover story labels the script 'Verdant Signals Corp. Device Telemetry Aggregator'.\n","state":0,"publishedAt":"2026-10-04T23:27:39+00:00","modifiedAt":"2026-10-04T23:45:20.5098812+00:00","affected":[{"ecosystem":"npm","name":"lite-matte","ranges":[],"versions":["1.0.0"],"rawVersionEvidence":null}],"metrics":[],"references":["https://www.npmjs.com/package/lite-matte/v/1.0.0"],"sourceUrl":"https://osv.dev/vulnerability/MAL-2026-17512","license":"OSV · upstream source license applies","key":"osv:MAL-2026-17512","identifiers":["MAL-2026-17512"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-11T17:59:29.7133238+00:00","complete":true,"records":1779,"lastAttemptAt":"2026-11-11T17:59:29.7133238+00:00","lastSuccessAt":"2026-11-11T17:59:29.8786336+00:00","error":null,"lastVerifiedAt":"2026-11-11T17:59:29.8786343+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-de3b77103708811b6494d2ff7c979037d73ae579742cd1649a5c765137ae5083-66440cb8d957f26a0d8f3a03b6765fa8b16e4c6b9cb48b55edd1ea7f4548f7f5","complete":true,"records":424194,"lastAttemptAt":"2026-11-11T17:57:32.9124856+00:00","lastSuccessAt":"2026-11-11T17:57:32.763439+00:00","error":null,"lastVerifiedAt":"2026-11-11T17:57:32.9124856+00:00","snapshotPublishedAt":"2026-11-11T17:27:49+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-8e2a34a18d694453aff340dede947f74","complete":false,"records":13759,"lastAttemptAt":"2026-11-11T18:10:43.0838006+00:00","lastSuccessAt":"2026-11-11T18:10:43.078+00:00","error":null,"lastVerifiedAt":"2026-11-11T18:10:43.078+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13584,"expectedIdentifiers":13813,"failedIdentifiers":0},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-11T17:59:29.7133238+00:00","complete":true,"records":1097,"lastAttemptAt":"2026-11-11T17:59:29.7133238+00:00","lastSuccessAt":"2026-11-11T17:59:29.8793973+00:00","error":null,"lastVerifiedAt":"2026-11-11T17:59:29.8793975+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-9169816ed33d4259981dbb50309d6730","complete":false,"records":13753,"lastAttemptAt":"2026-11-11T18:01:00.7925805+00:00","lastSuccessAt":"2026-11-11T16:59:52.052+00:00","error":"100 identifier lookups failed; latest failures include request timeout. Other identifiers were checked independently.","lastVerifiedAt":"2026-11-11T16:59:52.052+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13713,"expectedIdentifiers":13813,"failedIdentifiers":100},{"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-3562b6c78fd1bd0f0b55daf66a0926ae24f65e462df7f6d928caad458fc696bf","complete":true,"records":9947,"lastAttemptAt":"2026-11-11T17:59:29.6525853+00:00","lastSuccessAt":"2026-11-11T04:27:43.6877707+00:00","error":null,"lastVerifiedAt":"2026-11-11T17:59:29.6525853+00:00","snapshotPublishedAt":"2026-11-11T03:32:46+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-456002455e0ab94bb92c95476d4e6d175c104cd594749982afd96c893728ecbc","complete":true,"records":2010,"lastAttemptAt":"2026-11-11T17:57:32.9596215+00:00","lastSuccessAt":"2026-11-11T02:36:58.1276999+00:00","error":null,"lastVerifiedAt":"2026-11-11T17:57:32.9596215+00:00","snapshotPublishedAt":"2026-11-11T01:17:51+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-baa8362b4daf9e5f39d5563775a55935e7b442c0735d33274a921579ce4a0d66","complete":true,"records":3093,"lastAttemptAt":"2026-11-11T17:59:29.6681473+00:00","lastSuccessAt":"2026-11-11T13:00:02.5446881+00:00","error":null,"lastVerifiedAt":"2026-11-11T17:59:29.6681473+00:00","snapshotPublishedAt":"2026-11-11T12:47:47+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-757d3692f9a7b34792dad960197f3cc953a54db59b7d0ffe3835a0ed9926f76b","complete":true,"records":231690,"lastAttemptAt":"2026-11-11T17:59:29.4500285+00:00","lastSuccessAt":"2026-11-11T17:59:27.5166432+00:00","error":null,"lastVerifiedAt":"2026-11-11T17:59:29.4500285+00:00","snapshotPublishedAt":"2026-11-11T17:48:14+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}