eacq-cdk

{"modified":"2026-08-07T12:13:50Z","published":"2026-08-07T12:13:50Z","schema_version":"1.7.4","id":"MAL-2026-13513","summary":"Malicious code in eacq-cdk (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (0fdb6bb562df94959130d84e06dc14aa40e9347c60da24dd32ce672024c2e0aa)\nRequiring the package executes _init.js, which selects a platform-specific payload path and fetches an executable over HTTPS from Cloudflare Workers hosts whose names are assembled via.join('') from character-shard arrays (oob-worker.cf101-adf.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf100-416.workers.dev). If HTTPS retrieval fails, the loader falls back to base64-encoded payload delivery over DNS TXT queries under *.dl.wel1.ru. The fetched bytes are written to a hidden filename under /tmp (or Windows Temp), chmod 0755'd, and spawned detached via spawn('/bin/sh',...) / spawn('cmd',...). The destinations are unrelated to any legitimate publisher, the hostnames are split across arrays to defeat static string search, and the behavior is framed as 'telemetry/analytics'. Any project that installs this package hands full-host code execution to the operator of those endpoints on first require.\n","affected":[{"package":{"ecosystem":"npm","name":"eacq-cdk"},"versions":["35.8.1"],"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":"_init.js","sha256":"4b12e083af7076997ab8de8ecec2fce849f5b42da66425a8439dab6315f773f9","tlsh":"a4a1b65a16fa30180792e4d4892b5816719ef55332c4e9d4fb4c7aa85fa7224c3b38fc"}],"package_integrity":[{"filename":"eacq-cdk-35.8.1.tgz","hashes":{"sha1":"bb6a6ded1ef820acdcc7198a93bc35c3358a2c0b","sha512_sri":"sha512-21yNPu1UBmXML9mURSDBEPY28ii7Fb1pAS+7gIMLEHaDGSqRFsecdOi8eSOxchW+pP/2S+dpvamnNI+ucrUVFw=="}}]}}}],"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/eacq-cdk/v/35.8.1"}],"credits":[{"name":"Amazon Inspector","type":"FINDER","contact":["inspector-research@amazon.com"]}],"database_specific":{"malicious-packages-origins":[{"id":"IN-MAL-2026-016892","import_time":"2026-08-07T12:23:26.017401994Z","modified_time":"2026-08-07T12:13:50Z","sha256":"0fdb6bb562df94959130d84e06dc14aa40e9347c60da24dd32ce672024c2e0aa","source":"amazon-inspector","versions":["35.8.1"]}]}}