devplatform-test-pvm-is-even@35.9.5
Malicious code in devplatform-test-pvm-is-even (npm)
Analysis
On require, the package loads a runtime module that fingerprints the host platform/architecture and downloads a second-stage binary from Cloudflare Workers endpoints (oob-worker[.]cf101-adf[.]workers[.]dev, oob-worker[.]cf103-070[.]workers[.]dev, oob-worker[.]cf102-baf[.]workers[.]dev, oob-worker[.]cf100-416[.]workers[.]dev) at paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, and /pkg/package.exe, with a DNS TXT fallback channel (c[.]sdk[.]dl[.]wel1[.]ru). The downloaded payload is written to /var/tmp/.cache_<hex> (or dotnet_diag_<hex>.exe in the temp directory on Windows), made executable, and launched as a detached background process via cmd.exe /c start /b or /bin/sh -c "... &".
- analyzed by
- Leitwacht
- first seen
- Aug 5, 2026, 01:40 PM
- analyzed
- Aug 5, 2026, 02:09 PM
Related advisories
- devplatform-test-pvm-is-odd@35.3.9
- bigops-watchdog-angular@35.4.8
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- vitest-preview-pro@10.0.3
- @or-sdk/base@0.44.6
- @or-sdk/sdk-api@0.29.4
- @onereach/ui-components-vue2@27.0.4
- @or-sdk/providers@0.3.8
Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.