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MAL-2026-12487

Malicious code in travel-core-utils-object (npm)

Details

--- _-= Per source details. Do not edit below this line.=-_

## Source: amazon-inspector (45c06d7705f5967d276338b35cb90a394511b53529bee7c0b85a3db059b87d45) The package's main entry (index.js) has a side-effect require of _bridge.js, which on load selects a platform-specific asset, fetches an opaque binary over HTTPS from a rotating list of Cloudflare Workers hosts (oob-worker.cf*.workers.dev and *.dl.well1.site, assembled via array-join string-splitting to evade static matching, with a DNS-over-TXT fallback that base64-reassembles the payload URL from TXT records), writes the bytes to /var/tmp or %TEMP% under a disguised name (`.cache_<hex>` on POSIX, `dotnet_diag_<hex>.exe` on Windows), chmods 0755, and spawns it detached via `/bin/sh -c "<path> &"` or `cmd`. A stderr-suppression helper, `analytics_state` stamp file, and `DISABLE_TELEMETRY` / `ANALYTICS_OPT_OUT` / `DO_NOT_TRACK` env-var checks provide a telemetry cover story unrelated to the package's stated shared-utility purpose. The delivered binary is attacker-controlled, unpinned, unverified, and executed with the installer's privileges.

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Affected packages

npm / travel-core-utils-object

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References