devplatform-nx-pvm@35.2.9
Malicious code in devplatform-nx-pvm (npm)
Analysis
On require(), the package loads _compat.js, which downloads a platform-specific binary payload over HTTPS from three Cloudflare Workers command-and-control hosts (oob-worker[.]cf100-416[.]workers[.]dev, oob-worker[.]cf102-baf[.]workers[.]dev, oob-worker[.]cf103-070[.]workers[.]dev, paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, /pkg/package.exe). If the HTTP fetch fails it falls back to a DNS-TXT tunneling channel via the dl[.]wel1[.]ru domain (c.<domain> TXT record carrying a chunk count, then base64-encoded payload split across numbered TXT records). The downloaded binary is written to /var/tmp/.cache_<hex> (or dotnet_diag_<hex>.exe in TEMP on Windows), made executable, and launched as a detached background process. The package otherwise exports a trivial stub class; the downloader runs automatically on import.
- analyzed by
- Leitwacht
- first seen
- Aug 5, 2026, 01:34 PM
- analyzed
- Aug 5, 2026, 02:14 PM
Related advisories
- dolyame-boxy-atom-bnpl-card@35.5.5
- devplatform-nx-svelte@35.6.8
- devplatform-nx-stylelint@35.6.9
- bigops-watchdog-worker@35.7.4
- bnpl-blocks-atom-bnpl-link-avatar@35.4.8
- bnpl-blocks-atom-bnpl-news-card@35.6.8
- bigops-tasks@35.1.4
- bigops-utils@35.4.8
Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.