bigops-info-notices

{"modified":"2026-08-05T08:44:18Z","published":"2026-08-05T08:44:18Z","schema_version":"1.7.4","id":"MAL-2026-12170","summary":"Malicious code in bigops-info-notices (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (729d2cb33896f2398098de3285076599a473dfad68fa61e94a65f3f4453f3240)\nOn require of the package, index.js side-loads _bootstrap.js inside a try/catch. _bootstrap.js selects a platform-specific endpoint, fetches an opaque binary over HTTPS from one of several Cloudflare Workers hosts whose hostnames are reconstructed via array-join concatenation (e.g., [\"oob-worker.cf99-9\",\"b3.workers\",\".d\",\"ev\"].join(\"\")), writes the payload to a temp path under a disguised name (dotnet_diag_*.exe,.cache_*,.analytics_state), chmods it 0755, and detach-executes it via spawn(\"/bin/sh\", [\"-c\", fp + \" &\"], {detached:true}) on Unix or spawn(\"cmd\",...) on Windows. A DNS-TXT covert channel over sdk.dl.wel1.ru (also assembled via join) serves as a fallback delivery path, reading a chunk-count TXT record from c.<domain> and reassembling base64 chunks from N.<domain>. The package manifest describes it as an \"Internal bigops info notices module for platform services\" with a stub API and no dependencies, consistent with a dependency-confusion or typosquat lure whose sole effect on install/require is to drop and execute an attacker-controlled binary.\n","affected":[{"package":{"ecosystem":"npm","name":"bigops-info-notices"},"versions":["35.9.8"],"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":"_bootstrap.js","sha256":"feae6e9fabaeeea2fde4c64c517e66ac5f4acba0b44fae73b53721a643843650","tlsh":"fba1879a0165701d4bb0ebe0c61b8826f65af6633781d294f75ca9984fb3524c371efc"},{"path":"index.js","sha256":"6aa7b2d6d91a1212ec15e1f9746284a4b29bceed92ed1ca11803f3e280f802d5","tlsh":"30f02b9e16def972c6b4a3eade620092f95284214f874154be9850ef0ef18100399eba"}],"package_integrity":[{"filename":"bigops-info-notices-35.9.8.tgz","hashes":{"sha1":"0c5ec96abdf991fccdfb143470bfc77b4eeff722","sha512_sri":"sha512-xmkPt4uL6UsUBQIKQpqz0eBK1fKgvTaO1FFmmUA+AGxx1zGn/RmxNVeXO+FNTLGx4Cfv/V/pq9VnAOpdowYGKQ=="}}]}}}],"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/bigops-info-notices/v/35.9.8"}],"credits":[{"name":"Amazon Inspector","type":"FINDER","contact":["inspector-research@amazon.com"]}],"database_specific":{"malicious-packages-origins":[{"id":"IN-MAL-2026-014396","import_time":"2026-08-05T09:28:06.137972746Z","modified_time":"2026-08-05T08:44:18Z","sha256":"729d2cb33896f2398098de3285076599a473dfad68fa61e94a65f3f4453f3240","source":"amazon-inspector","versions":["35.9.8"]}]}}