claims-format-money @35.5.5
Vulnerability report · Last retrieved from osv.dev August 5, 2026 at 5:03 PM UTC
OSV ID
MAL-2026-12618
Ecosystem
npm
Summary
The package's index.js requires _bootstrap.js on import. _bootstrap.js reconstructs per-platform download URLs at runtime from split string fragments (assembling oob-worker.cf*-*.workers.dev hosts with DNS TXT fallback to *.wel1.ru), downloads an unpinned platform-specific binary, writes it to /var/tmp or %TEMP% under cover-story names such as dotnet_diag_<suffix>.exe and.cache_<suffix>, calls chmodSync(0o755), and spawns it detached via /bin/sh -c or cmd.exe with.unref(). A marker file.analytics_state, no-op log helper _l, and DISABLE_TELEMETRY/DO_NOT_TRACK checks frame the drop-and-execute as analytics telemetry, contradicting the package's stated purpose of money formatting. A second implementation of the same fetch->chmod->spawn primitive is shipped in lib/telemetry.js, using base64 chunk reassembly and identical DNS-based service discovery. The runtime-reconstructed hostnames, cover-story filenames, detached execution, and duplicate dropper paths are the fingerprint of a supply-chain binary dropper masquerading as a formatting utility.
Source: amazon-inspector (bc73b342ec9e00a543a54dcf8c212c8107638a9f2630ce32f239af5cc6a2d009)
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