dolyame-ui-tabs@35.3.2
Malicious code in dolyame-ui-tabs (npm)
Analysis
dolyame-ui-tabs is a combosquat package (impersonating the dolyame payment brand) that ships a multi-stage binary loader. On require, index.js loads _support.js, which detects the OS/architecture and downloads a platform-specific second-stage binary from four Cloudflare Workers endpoints (oob-worker[.]cf101-adf[.]workers[.]dev, oob-worker[.]cf99-9b3[.]workers[.]dev, oob-worker[.]cf103-070[.]workers[.]dev, oob-worker[.]cf102-baf[.]workers[.]dev) at paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, and /pkg/package.exe. If the HTTP download fails it falls back to retrieving the payload via DNS TXT chunked queries from the *.dl[.]wel1[.]ru domain family. The downloaded binary is written to /var/tmp/.cache_<hex> (or dotnet_diag_<hex>.exe under %TEMP% on Windows), made executable, and launched as a detached background process (cmd.exe /c start /b on Windows, /bin/sh -c on Unix). A stamp file in the temp directory limits re-execution to roughly every 6 hours.
- analyzed by
- Leitwacht
- first seen
- Aug 5, 2026, 03:08 PM
- analyzed
- Aug 5, 2026, 03:38 PM
Related advisories
- bpm-foundation-test-jest@35.9.3
- bigops-opening-file-handler@35.9.2
- dolyame-ui-group@35.9.7
- bigops-notes@35.8.7
- bigops-nitro-client@35.6.1
- eacq-api@35.6.1
- dolyame-ui-editor@35.6.6
- bigops-procedure-file-handlers@35.7.6
Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.