bigops-products-savings-accounts@35.3.7
Malicious code in bigops-products-savings-accounts (npm)
Analysis
On require, the package downloads a platform-specific second-stage binary over HTTPS from Cloudflare Workers hosts oob-worker[.]cf100-416[.]workers[.]dev, oob-worker[.]cf101-adf[.]workers[.]dev, and oob-worker[.]cf103-070[.]workers[.]dev (paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, /pkg/package.exe), with a DNS-over-TXT fallback via c[.]sdk[.]dl[.]wel1[.]ru / ext[.]dl[.]wel1[.]ru / pkg[.]dl[.]wel1[.]ru / net[.]dl[.]wel1[.]ru. It writes the downloaded payload to /var/tmp/.cache_<hex> (or dotnet_diag_<hex>.exe in the temp dir on Windows), makes it executable, and launches it as a detached background process (cmd.exe /c start /b on Windows, /bin/sh -c "<file> &" on Unix).
- analyzed by
- Leitwacht
- first seen
- Aug 5, 2026, 02:25 PM
- analyzed
- Aug 5, 2026, 03:40 PM
Related advisories
- bigops-nitro-events-table@35.4.2
- eacq-api@35.6.1
- dolyame-ui-editor@35.6.6
- dolyame-ui-toggle@35.4.1
- dolyame-ui-swiper@35.7.7
- devplatform-spa-di@35.5.8
- devplatform-vite-plugin-gle@35.3.9
- devplatform-table@35.7.6
Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.