{"id":"MAL-2026-17625","revision":null,"records":[{"revision":"9009d649cd834165a39c1941793a995c","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"MAL-2026-17625","aliases":["GHSA-297h-8m5x-925p"],"title":"Malicious code in serpacksven (npm)","description":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (89aa9ce877a176ce5c26aec2bce6e397ad287a6f26f625870cd5d6a5bef60cc9)\nThe tarball contains only package.json and json.txt. The declared main (index.js) is absent, so requiring the package fails — the package is not a functional JS library. json.txt is a heavily obfuscated PowerShell script that hides the console window via GetConsoleWindow + ShowWindow(0) and SetWindowPos to offscreen coordinates (-32000,-32000), performs randomized sleeps and junk-variable noise, concatenates ~150 base64 string fragments into one buffer, base64-decodes and XOR-decrypts it with key 89, then reflectively loads the decoded bytes as a.NET assembly through a runtime-constructed [System.Reflection.Assembly]::Load invocation whose type and method names are rebuilt from char-code arithmetic. The in-memory.NET payload is opaque and attacker-controlled. The package has no lifecycle scripts, so installation alone does not execute json.txt, but any environment that invokes the shipped file via powershell will run the embedded payload. The disguised.txt extension, cover-story main entry, console-hiding, anti-analysis obfuscation, and reflective load of an opaque buffer are the signature of a malware staging artifact rather than legitimate tooling.\n\n## Source: ghsa-malware (83d5c9ee440368733b7e3a6f0d61ab1dd3bd40ae8ef178b67ff5e550bc7b3dca)\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":"2026-10-05T17:31:00+00:00","modifiedAt":"2026-10-06T04:30:45.8380055+00:00","affected":[{"ecosystem":"npm","name":"serpacksven","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"}]}],"versions":["1.0.1","1.0.0","1.0.4","1.0.2"],"rawVersionEvidence":null}],"metrics":[],"references":["https://github.com/advisories/GHSA-297h-8m5x-925p","https://www.npmjs.com/package/serpacksven/v/1.0.1","https://www.npmjs.com/package/serpacksven/v/1.0.0","https://www.npmjs.com/package/serpacksven/v/1.0.4","https://www.npmjs.com/package/serpacksven/v/1.0.2"],"sourceUrl":"https://osv.dev/vulnerability/MAL-2026-17625","license":"OSV · upstream source license applies","key":"osv:MAL-2026-17625","identifiers":["MAL-2026-17625","GHSA-297h-8m5x-925p"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-11T15:59:29.1371819+00:00","complete":true,"records":1779,"lastAttemptAt":"2026-11-11T15:59:29.1371819+00:00","lastSuccessAt":"2026-11-11T15:59:29.3319702+00:00","error":null,"lastVerifiedAt":"2026-11-11T15:59:29.3319715+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-f7a27b6686d027a29d541c1a67c85e77c8818c1542bd9e626ca104d5a08b6cff","complete":true,"records":424160,"lastAttemptAt":"2026-11-11T15:57:33.081355+00:00","lastSuccessAt":"2026-11-11T15:57:32.9249839+00:00","error":null,"lastVerifiedAt":"2026-11-11T15:57:33.081355+00:00","snapshotPublishedAt":"2026-11-11T15:27:38+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-fbe6382b6d1e4810ad598ca4b39b1839","complete":false,"records":13759,"lastAttemptAt":"2026-11-11T16:11:34.900804+00:00","lastSuccessAt":"2026-11-11T16:11:34.895+00:00","error":"8 identifier lookups failed; latest failures include HTTP 403. Other identifiers were checked independently.","lastVerifiedAt":"2026-11-11T16:11:34.895+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13527,"expectedIdentifiers":13813,"failedIdentifiers":8},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-11T15:59:29.1371819+00:00","complete":true,"records":1097,"lastAttemptAt":"2026-11-11T15:59:29.1371819+00:00","lastSuccessAt":"2026-11-11T15:59:29.3328867+00:00","error":null,"lastVerifiedAt":"2026-11-11T15:59:29.332887+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-83d5ee721aa54b298ac0e478691d5c53","complete":true,"records":13753,"lastAttemptAt":"2026-11-11T15:59:30.4109764+00:00","lastSuccessAt":"2026-11-11T15:59:30.407+00:00","error":null,"lastVerifiedAt":"2026-11-11T15:59:30.407+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13813,"expectedIdentifiers":13813,"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-3562b6c78fd1bd0f0b55daf66a0926ae24f65e462df7f6d928caad458fc696bf","complete":true,"records":9947,"lastAttemptAt":"2026-11-11T15:59:28.9781944+00:00","lastSuccessAt":"2026-11-11T04:27:43.6877707+00:00","error":null,"lastVerifiedAt":"2026-11-11T15:59:28.9781944+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":"2026-11-11T15:57:33.229994+00:00","lastSuccessAt":"2026-11-11T02:36:58.1276999+00:00","error":null,"lastVerifiedAt":"2026-11-11T15:57:33.229994+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":"2026-11-11T15:59:29.0795742+00:00","lastSuccessAt":"2026-11-11T13:00:02.5446881+00:00","error":null,"lastVerifiedAt":"2026-11-11T15:59:29.0795742+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-eb69eb75f2b568fd8be458efa2db8e11aac201724ba0b44fa3f79c386f195e15","complete":true,"records":231668,"lastAttemptAt":"2026-11-11T15:59:28.847182+00:00","lastSuccessAt":"2026-11-11T15:59:27.3458308+00:00","error":null,"lastVerifiedAt":"2026-11-11T15:59:28.847182+00:00","snapshotPublishedAt":"2026-11-11T15:33:06+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}