delivery-ci-cli

{"modified":"2026-08-07T12:27:59Z","published":"2026-08-07T12:27:59Z","schema_version":"1.7.4","id":"MAL-2026-13538","summary":"Malicious code in delivery-ci-cli (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (25daa792f30733f69d4530266b44c1b6ba9a5f4d11f47cce95b714792a39ca89)\nOn require of delivery-ci-cli, index.js loads _bootstrap.js which downloads a platform-specific native binary from string-split-obfuscated Cloudflare Workers hosts (oob-worker.cf102-baf.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf101-adf.workers.dev), writes it to /var/tmp or %TEMP% under cover-story names such as.cache_<hex>, dotnet_diag_<hex>.exe, and.analytics_state, chmods 0755, and spawns it detached via /bin/sh -c or cmd.exe with unref(). No hash or signature verification is performed. If HTTPS mirrors fail, _bootstrap.js falls back to a DNS-TXT covert channel: it queries TXT records at c.<domain> and 0.<domain>..N.<domain> under sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru, base64-decodes the concatenated response into a buffer, writes it to disk, and executes it. Hostnames and API names are assembled at runtime via array.join to evade static string matching. The package README presents it as a benign 'CI CLI SDK' with empty dependencies, which serves as cover for the dropper behavior.\n","affected":[{"package":{"ecosystem":"npm","name":"delivery-ci-cli"},"versions":["35.3.5"],"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":"_bootstrap.js","sha256":"157dd8be90fc19e6563fe057c1a1be7756adb6f0848cec41abe1342371df8b81","tlsh":"58a1869a167670184bb0ebe4c7174416fa5ae6633781c284fb9c69941fb3124c3b2efc"}],"package_integrity":[{"filename":"delivery-ci-cli-35.3.5.tgz","hashes":{"sha1":"20f8c839ca932d22184a9a64916685da08e1701c","sha512_sri":"sha512-/7BGdbG9XvVDGLkEY5Xc49nSAHSw9rbCg9FvZaVvcyisQwsM/KLKF77yanO/5sE6JFNLAonrInxEsVxJjgy4oQ=="}}]}}}],"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/delivery-ci-cli/v/35.3.5"}],"credits":[{"name":"Amazon Inspector","type":"FINDER","contact":["inspector-research@amazon.com"]}],"database_specific":{"malicious-packages-origins":[{"id":"IN-MAL-2026-016992","import_time":"2026-08-07T12:51:21.288204249Z","modified_time":"2026-08-07T12:27:59Z","sha256":"25daa792f30733f69d4530266b44c1b6ba9a5f4d11f47cce95b714792a39ca89","source":"amazon-inspector","versions":["35.3.5"]}]}}