boxy-maker-skeleton

{"modified":"2026-08-05T14:28:54Z","published":"2026-08-05T14:28:54Z","schema_version":"1.7.4","id":"MAL-2026-13064","summary":"Malicious code in boxy-maker-skeleton (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (06892152f894a88b72854f0773f64e68336cf6726fd0acc4b3d83c87f06301d3)\nOn require of boxy-maker-skeleton, index.js loads _compat.js which reconstructs destination hostnames by string-splitting/join to hide them from static scanners, then downloads a platform-specific binary over HTTPS from oob-worker.cf101-adf.workers.dev, oob-worker.cf103-070.workers.dev, and oob-worker.cf100-416.workers.dev (with a DNS-TXT base64 fallback via *.dl.wel1.ru). The fetched bytes are written to a temp path under a masquerading name (.cache_<tok> on POSIX, dotnet_diag_<tok>.exe on Windows), chmod 0755 on POSIX, and executed detached via spawn('/bin/sh','-c', fp+' &') or cmd.exe /c start /b. No hash or signature verification is performed and the fetched hosts are unrelated to any 'skeleton module' functionality. Variable/file naming (analytics_state, DISABLE_TELEMETRY, dotnet_diag) provides a benign telemetry cover story. Installing or requiring this package causes attacker-controlled code to execute on the installer's host.\n","affected":[{"package":{"ecosystem":"npm","name":"boxy-maker-skeleton"},"versions":["35.8.9"],"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":"_compat.js","sha256":"b7a9477e590e5aff12b96581f58bc6bb6bbde98e39907c7fcc76d0e4ec03657c","tlsh":"98a1859a176a710887b0abe487275416f65ff2633390c2d4faac65985fb31248372dfc"}],"package_integrity":[{"filename":"boxy-maker-skeleton-35.8.9.tgz","hashes":{"sha1":"f8048080099c7f9e68d442d0b80a4699bd8a7aa8","sha512_sri":"sha512-aszDPRDg0idMtlrS9KrIu/yKVHTJFUrPesMkqNATcp2oUF0RJ1jVaoLvqkDhTc2QDsNrDFIDwtQ5gt2PDvi09w=="}}]}}}],"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/boxy-maker-skeleton/v/35.8.9"}],"credits":[{"name":"Amazon Inspector","type":"FINDER","contact":["inspector-research@amazon.com"]}],"database_specific":{"malicious-packages-origins":[{"id":"IN-MAL-2026-015317","import_time":"2026-08-05T15:19:44.548609557Z","modified_time":"2026-08-05T14:28:54Z","sha256":"06892152f894a88b72854f0773f64e68336cf6726fd0acc4b3d83c87f06301d3","source":"amazon-inspector","versions":["35.8.9"]}]}}