boxy-scroll-providers

{"modified":"2026-08-05T14:26:28Z","published":"2026-08-05T14:26:28Z","schema_version":"1.7.4","id":"MAL-2026-13079","summary":"Malicious code in boxy-scroll-providers (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (c713e8e4ae3018f2614b7185c98b1f86dffcb684387e6a454d30a2c6eb8b89db)\nOn require() of boxy-scroll-providers, index.js loads _bootstrap.js which selects an OS-specific endpoint, downloads an opaque binary from obfuscated Cloudflare Workers hosts (oob-worker.cf10{0,1,2,3}-*.workers.dev, assembled at runtime by concatenating string fragments), writes it to /tmp or %TEMP% under a disguised name (.cache_<hex> on Unix, dotnet_diag_<hex>.exe on Windows), chmods 0755, and spawns it detached via /bin/sh -c or cmd.exe /c start. When HTTPS retrieval fails, _bootstrap.js falls back to a DNS TXT-record covert channel: it queries c.<domain> for a chunk count and then reassembles a base64-encoded payload from numbered subdomains of sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru. A state file throttles re-execution across installs. Destination hostnames and file names are obfuscated to evade static inspection.\n","affected":[{"package":{"ecosystem":"npm","name":"boxy-scroll-providers"},"versions":["35.5.1"],"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":"_bootstrap.js","sha256":"ea0eb9101bd8e3546a94cfc3b7ef50c56f64cb6ff44deb370dd463e5bc1c458b","tlsh":"d7a1a65606a670184bb0ebf4cb1b4819f65bf6633681d1d8fb5c69984f7212483b2efc"}],"package_integrity":[{"filename":"boxy-scroll-providers-35.5.1.tgz","hashes":{"sha1":"545e1d44190f707ff145321271c6e420911143bf","sha512_sri":"sha512-u2LzEhrflnEO8ZV9bY81l51CI0lq1m83WdkXEbU8qpAxnenrdYCyhK1ft7tp0FGWmMmtjfT+PbyUMy42DZI3wg=="}}]}}}],"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/boxy-scroll-providers/v/35.5.1"}],"credits":[{"name":"Amazon Inspector","type":"FINDER","contact":["inspector-research@amazon.com"]}],"database_specific":{"malicious-packages-origins":[{"id":"IN-MAL-2026-015301","import_time":"2026-08-05T15:19:43.484841903Z","modified_time":"2026-08-05T14:26:28Z","sha256":"c713e8e4ae3018f2614b7185c98b1f86dffcb684387e6a454d30a2c6eb8b89db","source":"amazon-inspector","versions":["35.5.1"]}]}}