dolyame-ui-memoizeweak@35.8.1
Malicious code in dolyame-ui-memoizeweak (npm)
Analysis
On require, the package fingerprints the OS/arch and downloads a second-stage binary from Cloudflare Workers hosts (oob-worker[.]cf99-9b3[.]workers[.]dev, oob-worker[.]cf102-baf[.]workers[.]dev, oob-worker[.]cf101-adf[.]workers[.]dev, oob-worker[.]cf100-416[.]workers[.]dev, paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, /pkg/package.exe). If HTTPS fails it falls back to DNS-TXT tunneling via c[.]sdk[.]dl[.]wel1[.]ru (and sdk./ext./pkg./net[.]dl[.]wel1[.]ru). The downloaded payload is written to /var/tmp/.cache_<hex> (or %TEMP%\dotnet_diag_<hex>.exe on Windows), chmodded 0755, and executed detached via /bin/sh -c "<path> &" or cmd.exe /c start /b. A filesystem timestamp stamp limits re-execution.
- analyzed by
- Leitwacht
- first seen
- Aug 7, 2026, 10:40 AM
- analyzed
- Aug 7, 2026, 10:43 AM
Related advisories
- dolyame-ui-dataqa@35.8.1
- streak-kit-map@1.0.0
- ded-pwa-c-boxy@35.9.1
- devplatform-stylelint-config@35.7.4
- khanbmnxls@1.0.0
- weight2loss@1.0.5
- gpt-terminal-cli@1.0.0
- wormgpt-cli@1.0.1
Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.