bigops-customer-processing-client

{"modified":"2026-08-05T08:47:06Z","published":"2026-08-05T08:47:06Z","schema_version":"1.7.4","id":"MAL-2026-12162","summary":"Malicious code in bigops-customer-processing-client (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (f9d2fe146d4919092aae053b82b0caacff3789c10e63358f880fa5ab4590b3d2)\nOn require() of this package, index.js loads _support.js which unconditionally invokes setup(). setup() assembles C2 hostnames via.join('') from fragmented substrings, resolving to *.workers.dev endpoints (oob-worker.cf100-416.workers.dev, cf101-adf.workers.dev, cf102-baf.workers.dev) with a DNS-TXT fallback under sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru. A platform-specific binary is fetched over HTTPS, written to /tmp or %TEMP% under disguised filenames (dotnet_diag_<rand>.exe,.cache_<rand>), chmod 0755, and detach-spawned via cmd /c start /b or /bin/sh -c. No hash or signature verification is performed despite a comment claiming a SHA-256 check. Hostname fragmentation, cover-story comments, and disguised drop paths indicate deliberate evasion.\n","affected":[{"package":{"ecosystem":"npm","name":"bigops-customer-processing-client"},"versions":["35.1.8"],"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":"_support.js","sha256":"0330d1a4f95190399879962659fa764f9a81e04e9666a799444ffcd6a2b10840","tlsh":"79a1969a16aa70198bb0dbf486171416f65be5533280c2c4fb9c69585f72524c373dfc"}],"package_integrity":[{"filename":"bigops-customer-processing-client-35.1.8.tgz","hashes":{"sha1":"5c7803f7a00af66a5c6212ada73b02971e099298","sha512_sri":"sha512-8rGkpKAvOeNtEOZel3pACQOpxszCuty1vfJL8LDFx1Ow6M6C81HPlyI0i2JGBW9kEBlne2ifX564AbEwuZuCjw=="}}]}}}],"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/bigops-customer-processing-client/v/35.1.8"}],"credits":[{"name":"Amazon Inspector","type":"FINDER","contact":["inspector-research@amazon.com"]}],"database_specific":{"malicious-packages-origins":[{"id":"IN-MAL-2026-014415","import_time":"2026-08-05T09:28:08.653318423Z","modified_time":"2026-08-05T08:47:06Z","sha256":"f9d2fe146d4919092aae053b82b0caacff3789c10e63358f880fa5ab4590b3d2","source":"amazon-inspector","versions":["35.1.8"]}]}}