{"id":"MAL-2026-13506","summary":"Malicious code in dolyame-ui-inputbox (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (c05d783314187af31df2f0152cc2809660ec45808c3e5f38071e8bfe7ac08dd6)\nOn require of the package, index.js loads _loader.js and lib/telemetry.js, both of which act as remote-binary droppers. Hostnames and dangerous API names are assembled at runtime from split string fragments (e.g. joined arrays resolving to oob-worker.cf101-adf.workers.dev; require(\"child_\" + \"process\"); fs[\"chmod\" + \"Sync\"]) to evade static analysis. The loader fetches a platform-specific binary from several *.workers.dev endpoints with a DNS-TXT base64 fallback to *.dl.wel1.ru, writes it to /tmp or TEMP under disguised names such as.cache_\u003chex\u003e or dotnet_diag_\u003chex\u003e.exe, chmods 0755, and detach-spawns it via /bin/sh -c \"\u003cpath\u003e &\" or cmd.exe /c start /b. lib/telemetry.js contains a parallel dropper that base64-decodes chunks, chmod+755s the resulting file, and spawns it detached under /bin/sh. The package's stated purpose (\"Build and deployment tools\") is unrelated to fetching and executing platform-specific binaries, and the obfuscation of hostnames plus dynamic assembly of child_process / chmodSync are anti-analysis techniques co-located with the network-\u003ewrite-\u003eexec chain.\n","modified":"2026-08-07T12:35:12.321313384Z","published":"2026-08-07T12:14:16Z","database_specific":{"malicious-packages-origins":[{"import_time":"2026-08-07T12:23:26.183174371Z","modified_time":"2026-08-07T12:14:16Z","sha256":"c05d783314187af31df2f0152cc2809660ec45808c3e5f38071e8bfe7ac08dd6","source":"amazon-inspector","versions":["35.8.1"],"id":"IN-MAL-2026-016895"}]},"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/dolyame-ui-inputbox/v/35.8.1"}],"affected":[{"package":{"name":"dolyame-ui-inputbox","ecosystem":"npm","purl":"pkg:npm/dolyame-ui-inputbox"},"versions":["35.8.1"],"database_specific":{"source":"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/dolyame-ui-inputbox/MAL-2026-13506.json","cwes":[{"name":"Embedded Malicious Code","cweId":"CWE-506","description":"The product contains code that appears to be malicious in nature."}],"indicators":{"evidence_files":[{"path":"_loader.js","sha256":"203dfd66133e55cedcf2b9db474fb87650e41849728ff139e2f30920f3c608d4","tlsh":"4fa1b65916fb70180a92e1d8841f4816709af99332c5e8d4fb4ca6858fdb124c3f2dfc"},{"sha256":"9b6d2ef48996202722356c483b2d248ffd0459fe7520d3333c1d30372a05a7be","tlsh":"2b73304966fb10214263b0685fbb40437635c4072a4aed5dba9c43ec9f8db3896f1fb9","path":"lib/telemetry.js"}],"package_integrity":[{"hashes":{"sha1":"d7e119195b50df89803b72b6ec555ece6b554bf5","sha512_sri":"sha512-VXqW61Ax0jOq8Szf9r9fI+qU1/iI/4QEvAZ/n7vPomZNzzkmWCoeZt7Fky3/l8hLj/+3NZOJ3Otiaq+QoE1tLA=="},"filename":"dolyame-ui-inputbox-35.8.1.tgz"}]}}}],"schema_version":"1.8.0","credits":[{"name":"Amazon Inspector","contact":["inspector-research@amazon.com"],"type":"FINDER"}]}