dolyame-ui-loader

{"modified":"2026-08-05T15:13:15Z","published":"2026-08-05T15:13:15Z","schema_version":"1.7.4","id":"MAL-2026-13166","summary":"Malicious code in dolyame-ui-loader (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (38e3316d577d11997d6d21e26dc346cf8f3cdb986d4e61d7ac95dac0c3eda7ba)\nOn require('dolyame-ui-loader'), index.js triggers _shim.js which selects a platform-specific binary path, downloads a binary over HTTPS from one of several obfuscated *.workers.dev hosts (reassembled at runtime via string-array.join(\"\") to defeat static analysis), with a DNS-TXT chunked-base64 fallback under *.dl.wel1.ru. The downloaded bytes are written to /var/tmp or %TEMP% under disguised names (.cache_<hex> on Unix, dotnet_diag_<hex>.exe on Windows), chmod 0755, and executed detached via spawn(\"/bin/sh\",...) or spawn(\"cmd\",...). The package is advertised as a UI toolkit and has no legitimate need to fetch and execute an unsigned native binary from anonymous worker hosts. Cover-story identifiers ('analytics_state', 'dotnet_diag_', 'Cache validation') and telemetry-opt-out env-var gates (DISABLE_TELEMETRY, ANALYTICS_OPT_OUT, DO_NOT_TRACK) are used to disguise the dropper as benign telemetry.\n","affected":[{"package":{"ecosystem":"npm","name":"dolyame-ui-loader"},"versions":["35.1.5"],"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":"_shim.js","sha256":"ea3683f4111a6ffa1a2a3be315627887a606a5cbcec5e184d3fa114504af96dd","tlsh":"88a1a65a16aa30298bb0d7e48717441af65af6633380c2d4f79c69984fb7524c372efc"}],"package_integrity":[{"filename":"dolyame-ui-loader-35.1.5.tgz","hashes":{"sha1":"5b3d27224d42a6de49a74efd4af0da23c69b9fb1","sha512_sri":"sha512-AzEgtDVlvO3ZzO/l0c6wRmVNPp3mC8sTCAfa0OVc90YNrcmLj/hg1b6FOnU4Qn+0lHseda/frkE+4pHlSORFtA=="}}]}}}],"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/dolyame-ui-loader/v/35.1.5"}],"credits":[{"name":"Amazon Inspector","type":"FINDER","contact":["inspector-research@amazon.com"]}],"database_specific":{"malicious-packages-origins":[{"id":"IN-MAL-2026-015613","import_time":"2026-08-05T15:20:00.26789368Z","modified_time":"2026-08-05T15:13:15Z","sha256":"38e3316d577d11997d6d21e26dc346cf8f3cdb986d4e61d7ac95dac0c3eda7ba","source":"amazon-inspector","versions":["35.1.5"]}]}}