{"id":"MAL-2026-2899","summary":"Malicious code in chai-use-chains (npm)","details":"chai-use-chains is a malicious npm package that when imported downloads a C2 dropper from https://jsonkeeper[.]com/b/FAWPU and executes it (similar to malware in to chai-await-test).\n\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (82cb30ff865bcb0071b1861dd09c9b8e770861b76d263b30e42aafd54626c39b)\nThe package chai-use-chains was found to contain malicious code.\n","modified":"2026-04-23T21:14:37.942956Z","published":"2026-04-15T22:05:03Z","database_specific":{"malicious-packages-origins":[{"source":"amazon-inspector","sha256":"82cb30ff865bcb0071b1861dd09c9b8e770861b76d263b30e42aafd54626c39b","ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}],"modified_time":"2026-04-23T20:43:56Z","import_time":"2026-04-23T20:49:07.40443128Z"}],"iocs":{"urls":["https://jsonkeeper.com/b/FAWPU"]}},"references":[{"type":"REPORT","url":"https://www.indece.com/en-US/blog/7df041ba-feb1-4d87-918b-7fc2c709d805"}],"affected":[{"package":{"name":"chai-use-chains","ecosystem":"npm","purl":"pkg:npm/chai-use-chains"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}],"database_specific":{"source":"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/chai-use-chains/MAL-2026-2899.json"}}],"schema_version":"1.7.5","credits":[{"name":"Amazon Inspector","contact":["actran@amazon.com"],"type":"FINDER"},{"name":"indece","contact":["https://indece.com"],"type":"FINDER"}]}