{"id":"MAL-2026-3769","revision":null,"records":[{"revision":"21b2e8342556411c94ac0a05d63a9972","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"MAL-2026-3769","aliases":["GHSA-8558-w8j5-67wq"],"title":"Malicious code in prettier-lint-lenz (npm)","description":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (28f7035dda69170600724a31f4b3543e02ac23c9153f3a62c35f2ee5264eef44)\nPackage impersonates the popular `prettier` formatter — README and description are copied verbatim from the real Prettier project, but the package ships no formatter code. Instead, `package.json` declares `\"postinstall\": \"node index.mjs\"`, which on Windows POSTs an install beacon to a hardcoded bare-IP C2 (`http://204.10.194.64:5000/api/nonce`), copies a bundled `prettier-lint/` directory to `%LOCALAPPDATA%\\prettier-lint`, and executes `ctll.mjs` from the deployed location. `ctll.mjs` writes a hidden VBScript runner and registers a Windows Scheduled Task named `CdllProtect` with a LogonTrigger (`schtasks /Create /XML`) that relaunches `cdll.mjs` via `wscript.exe //nologo` in a hidden window on every user logon, with 999 retries and no execution time limit. The deployed `cdll.mjs` polls the clipboard every ~250ms via `powershell.exe Get-Clipboard -Raw` and POSTs the raw clipboard text as JSON to the same hardcoded endpoint over plain HTTP on every change, exfiltrating passwords, 2FA codes, wallet addresses, and any copied text. All three components (install-time beacon, deployed worker, persistence) share the attacker-controlled endpoint `204.10.194.64:5000`.\n\n## Source: ghsa-malware (999f12054e9fb865c3b9176056498b16329b0406f230b1bf23f6a1384d8cd63b)\nAny computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.\n","state":0,"publishedAt":"2026-05-14T19:25:15+00:00","modifiedAt":"2026-09-23T03:45:06.8937747+00:00","affected":[{"ecosystem":"npm","name":"prettier-lint-lenz","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"}]}],"versions":["1.0.0","2.6.4"],"rawVersionEvidence":null}],"metrics":[],"references":["https://www.npmjs.com/package/prettier-lint-lenz/v/1.0.0","https://www.npmjs.com/package/prettier-lint-lenz/v/2.6.4","https://github.com/advisories/GHSA-8558-w8j5-67wq"],"sourceUrl":"https://osv.dev/vulnerability/MAL-2026-3769","license":"OSV · upstream source license applies","key":"osv:MAL-2026-3769","identifiers":["MAL-2026-3769","GHSA-8558-w8j5-67wq"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-12T20:18:28.6757759+00:00","complete":true,"records":1779,"lastAttemptAt":"2026-11-12T20:18:28.6757759+00:00","lastSuccessAt":"2026-11-12T20:18:28.9399625+00:00","error":null,"lastVerifiedAt":"2026-11-12T20:18:28.9399638+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-64752486c567b55b31fb0d7225f5222bcd0019564ac0ac5f0649e242c7b19299-10dbd7e8374437942fae8107ee9412aa31306596e1009af478aed343a0964c7f","complete":true,"records":424825,"lastAttemptAt":"2026-11-12T20:16:25.334281+00:00","lastSuccessAt":"2026-11-12T20:16:25.0113103+00:00","error":null,"lastVerifiedAt":"2026-11-12T20:16:25.334281+00:00","snapshotPublishedAt":"2026-11-12T19:27:19+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-367b55e188c64747ba0c4df3151c2af5","complete":true,"records":13777,"lastAttemptAt":"2026-11-12T20:18:32.2142141+00:00","lastSuccessAt":"2026-11-12T20:18:32.208+00:00","error":null,"lastVerifiedAt":"2026-11-12T20:18:32.208+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13830,"expectedIdentifiers":13830,"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":"2026-11-12T20:18:28.6757759+00:00","complete":true,"records":1123,"lastAttemptAt":"2026-11-12T20:18:28.6757759+00:00","lastSuccessAt":"2026-11-12T20:18:28.9407518+00:00","error":null,"lastVerifiedAt":"2026-11-12T20:18:28.9407519+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-7b81ed9b00664b57bd36260af1e82a93","complete":true,"records":13777,"lastAttemptAt":"2026-11-12T20:18:30.1210334+00:00","lastSuccessAt":"2026-11-12T20:18:30.116+00:00","error":null,"lastVerifiedAt":"2026-11-12T20:18:30.116+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13830,"expectedIdentifiers":13830,"failedIdentifiers":0},{"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-3aa2f7b2e0461b3b0ca26add25992529eb0c3a0bcda31696dca7b573cde1382c","complete":true,"records":9949,"lastAttemptAt":"2026-11-12T20:18:28.623289+00:00","lastSuccessAt":"2026-11-12T20:18:28.3432186+00:00","error":null,"lastVerifiedAt":"2026-11-12T20:18:28.623289+00:00","snapshotPublishedAt":"2026-11-12T19:48:11+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":"2026-11-12T20:16:25.491187+00:00","lastSuccessAt":"2026-11-12T18:16:50.7862525+00:00","error":null,"lastVerifiedAt":"2026-11-12T20:16:25.491187+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-0d57668ba92a2918d0664e89ea91d467f8e6a2bc6330923eb883b74ac42a14ec","complete":true,"records":3125,"lastAttemptAt":"2026-11-12T20:18:28.6390801+00:00","lastSuccessAt":"2026-11-12T15:18:36.6112732+00:00","error":null,"lastVerifiedAt":"2026-11-12T20:18:28.6390801+00:00","snapshotPublishedAt":"2026-11-12T14:48:37+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-aacb2ea0a84f684226fd5e421ed31635112d695f522f1d5914b6afab8cc7f03c","complete":true,"records":231724,"lastAttemptAt":"2026-11-12T20:18:18.7339404+00:00","lastSuccessAt":"2026-11-12T20:18:18.1230476+00:00","error":null,"lastVerifiedAt":"2026-11-12T20:18:18.7339404+00:00","snapshotPublishedAt":"2026-11-12T19:33:03+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}