claims-policy-details-api-adapters

{"modified":"2026-08-05T14:02:06Z","published":"2026-08-05T14:02:06Z","schema_version":"1.7.4","id":"MAL-2026-12639","summary":"Malicious code in claims-policy-details-api-adapters (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (e2500b36f91161fd5530acaf1ddc9c5af050b9d874dae9924f686f45f2dbe721)\nOn require of the package, index.js loads _loader.js which downloads a platform-specific binary from string-split-obfuscated hosts (oob-worker.cf103-070.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf101-adf.workers.dev) with a DNS-TXT chunked-base64 fallback channel across sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru. The fetched bytes are written to /tmp or %TEMP% under cover names such as.cache_<hex> or dotnet_diag_<hex>.exe, chmodded to 0755, and spawned detached via spawn(\"/bin/sh\", [\"-c\", <path> + \" &\"], {detached:true, stdio:\"ignore\"}). Hostnames are assembled from split arrays (e.g. [\"oob-worker.cf103-070.wo\",\"rke\",\"rs.dev\"].join(\"\")) and no hash or signature verification is performed despite comments referencing SHA-256 integrity. The DNS-TXT retrieval path queries c.<domain> for a chunk count and N.<domain> for base64 chunks that are concatenated and decoded to a Buffer, providing a covert channel that bypasses URL/domain egress controls.\n","affected":[{"package":{"ecosystem":"npm","name":"claims-policy-details-api-adapters"},"versions":["35.3.1"],"database_specific":{"cwes":[{"cweId":"CWE-506","description":"The product contains code that appears to be malicious in nature.","name":"Embedded Malicious Code"}],"indicators":{"evidence_files":[{"path":"_loader.js","sha256":"5971ac06f917e4b3aa669a4de5558b306197ef78ae532269f6060d3e4c84efd5","tlsh":"d1a1b75b066671198bb0dbe4c71b8816f65ee6633380c198fb9c69985f73124c2b2dfc"}],"package_integrity":[{"filename":"claims-policy-details-api-adapters-35.3.1.tgz","hashes":{"sha1":"a5e203cf68700ab1bf9ad53b14d13f681ffc0436","sha512_sri":"sha512-xZtSjHeDlMmNT2Q9A1S77qluTVwmw3ukexT3hbuhg3lhcLD5kPFyZyCxiXXCINMqgHWZQeOtgDtPSGPgHUvB3A=="}}]}}}],"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/claims-policy-details-api-adapters/v/35.3.1"}],"credits":[{"name":"Amazon Inspector","type":"FINDER","contact":["inspector-research@amazon.com"]}],"database_specific":{"malicious-packages-origins":[{"id":"IN-MAL-2026-015137","import_time":"2026-08-05T14:20:05.843913463Z","modified_time":"2026-08-05T14:02:06Z","sha256":"e2500b36f91161fd5530acaf1ddc9c5af050b9d874dae9924f686f45f2dbe721","source":"amazon-inspector","versions":["35.3.1"]}]}}