dolyame-ui-tag@35.9.9
Malicious code in dolyame-ui-tag (npm)
Analysis
dolyame-ui-tag@35.9.9 is a multi-stage binary dropper disguised as a React components package. On require, index.js loads _ext.js, which downloads a platform-specific binary payload over HTTPS from Cloudflare Workers endpoints oob-worker[.]cf101-adf[.]workers[.]dev, oob-worker[.]cf99-9b3[.]workers[.]dev, and oob-worker[.]cf100-416[.]workers[.]dev at /pkg/package (or /pkg/package-arm64, /pkg/loader_mac, /pkg/package.exe depending on OS/arch), with a DNS-TXT chunked fallback loader from c[.]sdk[.]dl[.]wel1[.]ru and related *.dl[.]wel1[.]ru hosts. 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 via /bin/sh -c "<file> &" or cmd.exe /c start /b. A state-stamp file (/tmp/.analytics_state) throttles re-execution. The package ships no React component code; its sole behaviour is fetching and executing a remote second-stage binary.
- analyzed by
- Leitwacht
- first seen
- Aug 5, 2026, 03:08 PM
- analyzed
- Aug 5, 2026, 03:26 PM
Related advisories
- dolyame-ui-types@35.8.2
- devplatform-spa-plugin-s3@35.5.9
- devplatform-select-user@35.4.4
- devplatform-snarkdown@35.2.1
- devplatform-nx-husky@35.7.7
- devplatform-react-query-clients@35.7.7
- bigops-storio-ngrx-component-store@35.3.4
- dolyame-boxy-desktop-bnpl-hero-title@35.4.2
Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.