bigops-voximplant (npm) · Malicious Code
Affects bigops-voximplantSource GCVE Database
Malicious package : remove bigops-voximplant and rotate any secrets on hosts that installed it.
Data as of 6 Aug 2026, 18:24 UTC
Malicious package
Published to npm · OSV MAL-2026-12172
What to do
Remove bigops-voximplant from every project, lockfile and image that pulls it in. Treat any host that installed it as compromised: rotate the credentials, tokens and keys it could read, from a clean machine.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| npmbigops-voximplant | Affected
| Fixed in– |
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Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (e20e151930946a17e9bea02eb51c760264c27138792955452acc4231196ceaae) On require() of bigops-voximplant, index.js loads _ext.js which downloads an OS/arch-specific binary from Cloudflare Workers subdomains whose hostnames are reassembled at runtime from split string fragments (oob-worker.cf102-baf.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf100-416.workers.dev), with a DNS-over-TXT base64 chunked fallback resolving from sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru to bypass HTTPS egress filtering. The fetched bytes are written to /tmp/.cache_<hex> on Unix (or %TEMP%\dotnet_diag_<hex>.exe on Windows), chmod'd 0755 via fs['chmod'+'Sync'], and detached-spawned via /bin/sh -c '<path> &' or cmd /c start /b, with no hash or signature verification and no source-of-truth publisher domain. A second, structurally identical dropper is bundled as lib/telemetry.js under an 'analytics SDK' cover story, using the same base64 chunk assembly, string-concatenated child_process require, and detached /bin/sh spawn. Hosts and dangerous APIs are constructed via runtime string joins ('child_'+'process', split-and-join hostname fragments) to defeat static inspection. The destinations are anonymous Cloudflare Workers and a.ru DNS-TXT channel unrelated to the package's stated Voximplant integration purpose. ## Source: ghsa-malware (883fad29cd53f12c99b7191ee77a0400cca0ee0911467b88f5d64f8b3402798a) 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.