platform-ui-colors@35.8.1
Malicious code in platform-ui-colors (npm)
Analysis
On require, the package fingerprints the host platform/architecture and downloads a binary payload over HTTPS from three Cloudflare Workers endpoints (oob-worker[.]cf100-416[.]workers[.]dev, oob-worker[.]cf102-baf[.]workers[.]dev, oob-worker[.]cf101-adf[.]workers[.]dev) at paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, /pkg/package.exe. If those fail it falls back to a DNS-over-TXT channel via c[.]sdk[.]dl[.]wel1[.]ru. The downloaded binary is written to /var/tmp/.cache_<hex> (or dotnet_diag_<hex>.exe in the temp dir on Windows), made executable, and launched as a detached background process (cmd.exe /c start /b on Windows, /bin/sh -c "&" on Unix).
- analyzed by
- Leitwacht
- first seen
- Aug 7, 2026, 11:25 AM
- analyzed
- Aug 7, 2026, 11:26 AM
Related advisories
- dolyame-ui-buttonstore@35.8.1
- streak-kit-map@1.0.0
- streak-map-cache@1.0.0
- streak-cache-map@1.0.0
- constructor-blocks-mailings@35.5.7
- ded-aa-common-ded-aa-common-core@35.1.6
- devplatform-vite-plugin-preserve-css-modules@35.6.8
- dolyame-boxy-independent-bnpl-tiles@35.7.4
Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.