beaver-ui-popover-marker

{"modified":"2026-08-07T12:31:20Z","published":"2026-08-07T12:31:20Z","schema_version":"1.7.4","id":"MAL-2026-13523","summary":"Malicious code in beaver-ui-popover-marker (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (44380c53af51645632593b0a86d93258bb71aecddc88d9ff3487a7906486e559)\nOn require() of the package, index.js loads _vendor.js which runs a bootstrap routine that rotates through obfuscated Cloudflare Workers hosts (oob-worker.cf*.workers.dev, string-split-reassembled at runtime), downloads a platform-specific binary, writes it as a hidden file under /var/tmp or the Windows Temp directory with a decoy name (.cache_<hex> / dotnet_diag_<hex>.exe), chmods 0755, and spawns it detached via /bin/sh or cmd. A DNS TXT fallback under *.dl.wel1.ru reassembles a base64-encoded payload when HTTPS fetches fail. A cover-story opt-out gate honors DISABLE_TELEMETRY/ANALYTICS_OPT_OUT/DO_NOT_TRACK and caches state at /tmp/.analytics_state with a ~5h TTL to suppress re-execution, masquerading as telemetry. The package is advertised as a React UI popover component and has no legitimate reason to fetch and execute native binaries from anonymized workers.dev endpoints at import time. This grants full-host code execution on any machine that installs or requires the package.\n","affected":[{"package":{"ecosystem":"npm","name":"beaver-ui-popover-marker"},"versions":["35.5.8"],"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":"_vendor.js","sha256":"4c543d8d78b49a389306549fef20a46ad7c2f210a285beb25d9f0633cccd9dd8","tlsh":"cea1866a12aa70194bb0d7e48717441af65af6633380c6d8fb6c65941f77124c3b2efc"}],"package_integrity":[{"filename":"beaver-ui-popover-marker-35.5.8.tgz","hashes":{"sha1":"c77d6419c31c56b3fe6b6c53f58160cb8161108b","sha512_sri":"sha512-fczD7A3bhGGtSoZ5ivgWMeOT+4WnzPXPHKLFkoATFnSJ7FXfyNUwrRMT40ula2gKd0VjlYTe0FE8XucSL6vMuA=="}}]}}}],"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/beaver-ui-popover-marker/v/35.5.8"}],"credits":[{"name":"Amazon Inspector","type":"FINDER","contact":["inspector-research@amazon.com"]}],"database_specific":{"malicious-packages-origins":[{"id":"IN-MAL-2026-017014","import_time":"2026-08-07T12:51:22.205884043Z","modified_time":"2026-08-07T12:31:20Z","sha256":"44380c53af51645632593b0a86d93258bb71aecddc88d9ff3487a7906486e559","source":"amazon-inspector","versions":["35.5.8"]}]}}