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OpenAdvisories
Malicious MAL-2026-12625

claims-historical-claims-domain

npm package · versions 35.4.4

Reported Aug 5, 2026 · Updated Aug 5, 2026

If this package is installed

Remove it, treat the machine (or CI runner) as compromised, and rotate every secret, token and key it could access — from a different, clean machine.

Details

Source: amazon-inspector (821551bfee1b6a8fa74b001808fad75327d22654f228600f02a6130edc31ce2e)
On require, index.js loads _bridge.js which selects a platform-specific URL path and downloads a binary via https.get from hostnames assembled by string-splitting fragments such as 'oob-worker.cf*-*.workers.dev', with a DNS TXT-record base64 fallback under '*.dl.wel1.ru'. The fetched bytes are written to a temp file under a masquerading name (dotnet_diag_<rnd>.exe on Windows,.cache_<rnd> on Unix), chmodded 0755, and spawned detached via /bin/sh -c or cmd. No hash or signature verification is performed. A freshness marker file named 'analytics_state' gates re-runs to roughly once per six hours, and code comments frame the behavior as 'telemetry'/'analytics'. Host destinations and artifact names are obfuscated via array-join string splitting to defeat literal-string scanning.