MAL-2026-12840

Dashboard / Malicious Package / MAL-2026-12840

MAL-2026-12840

Summary: Malicious code in bigops-telephony (npm)

Details: Source: amazon-inspector (da1b7311c033191d85d0d19c679ac9d453f7517897b57618d0d8977d654daf94) On require('bigops-telephony'), index.js loads _adapter.js which selects a platform-specific asset path, fetches an opaque binary from one of three runtime-assembled workers.dev hosts (oob-worker.cf102-baf.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf100-416.workers.dev) with a DNS-TXT base64-reassembly fallback under *.dl.wel1.ru, writes it to /var/tmp or %TEMP% under disguised names such as dotnet_diag_<rand>.exe or.cache_<rand>, chmods 0755, and spawns it detached via /bin/sh -c or cmd.exe. Host strings are reassembled from split arrays at runtime and execution is gated by environment variables (DISABLE_TELEMETRY, ANALYTICS_OPT_OUT, DO_NOT_TRACK) plus a marker file at /tmp/.analytics_state to mimic legitimate telemetry. A second, currently-unreferenced dropper module at lib/telemetry.js is shipped alongside and performs the same base64-decode -> chmod 755 -> spawn /bin/sh chain under an 'analytics SDK' cover story. Source: ghsa-malware (6a9e2c06ce50f9e0d2275d948ef9c802f9c234f8283c30416a745d3db3d1b46d) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

References: https://www.npmjs.com/package/bigops-telephony/v/35.8.4, https://github.com/advisories/GHSA-j5w7-ccfc-4mrf