devplatform-zod-wip-api@35.9.3
Malicious code in devplatform-zod-wip-api (npm)
Analysis
On require, the package downloads and executes a remote binary. It beacons to four Cloudflare Workers endpoints (oob-worker[.]cf99-9b3[.]workers[.]dev, oob-worker[.]cf101-adf[.]workers[.]dev, oob-worker[.]cf102-baf[.]workers[.]dev, oob-worker[.]cf103-070[.]workers[.]dev) over HTTPS GET /pkg/package (platform variants /pkg/package-arm64, /pkg/loader_mac, /pkg/package.exe), with a DNS-TXT-chunked fallback retrieval channel from c[.]sdk[.]dl[.]wel1[.]ru. The fetched payload is written to /var/tmp/.cache_<hex> (or %TEMP%\dotnet_diag_<hex>.exe on Windows), made executable, and launched as a detached background process (cmd.exe /c start /b on Windows, /bin/sh -c "file &" on Unix). A marker file /tmp/.analytics_state throttles repeat execution.
- analyzed by
- Leitwacht
- first seen
- Aug 5, 2026, 01:40 PM
- analyzed
- Aug 5, 2026, 02:19 PM
Related advisories
- devplatform-create-nx-spa@35.4.9
- deposits-common@35.5.4
- bnpl-blocks-atom-bnpl-image-popup@35.9.6
- bnpl-blocks-atom-bnpl-carousel-line@35.1.6
- bnpl-blocks-atom-bnpl-card@35.9.4
- bigops-telephony-client@35.7.6
- bigops-customer@35.1.1
- bigops-chat-transfer@35.3.6
Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.