bigops-watchdog-angular@35.4.8
Malicious code in bigops-watchdog-angular (npm)
Analysis
On require, the package loads a bundled dropper that fingerprints the host platform/architecture and downloads a platform-specific second-stage binary from a rotating set of Cloudflare Workers endpoints (oob-worker[.]cf102-baf[.]workers[.]dev, oob-worker[.]cf100-416[.]workers[.]dev, oob-worker[.]cf99-9b3[.]workers[.]dev, oob-worker[.]cf101-adf[.]workers[.]dev) at paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, or /pkg/package.exe. If the HTTP downloads fail it retrieves the payload via DNS TXT records from 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 <path> & on Unix).
- analyzed by
- Leitwacht
- first seen
- Aug 5, 2026, 01:00 PM
- analyzed
- Aug 5, 2026, 01:29 PM
Related advisories
- @nasddatax/common@1.0.21
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- @or-sdk/base@0.44.6
- @or-sdk/sdk-api@0.29.4
- @onereach/ui-components-vue2@27.0.4
- @or-sdk/providers@0.3.8
- @or-sdk/event-manager@1.1.7
- @or-sdk/contacts@4.7.7
Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.