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Malicious code in fb-hr-sites--boxified-form-meetup-subcribe (npm)

0
Critical
Published: 08/05/2026 (08/05/2026, 12:38:51 UTC)
Source: GCVE Database
Product: fb-hr-sites--boxified-form-meetup-subcribe

Description

--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (b8aa49d4f3babc81510150e766a38674e971d7553cb05d98b67d0edd24a2fa07) The package's index.js exports an inert class and silently require()s./_platform inside a swallowed try/catch. On load, _platform.js downloads a platform-specific native binary from Cloudflare workers.dev hostnames assembled by joining split string fragments (oob-worker.cf100-416.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf101-adf.workers.dev), with a DNS-TXT fallback pointing at *.dl.well1.site. The fetched bytes are written to /var/tmp or %TEMP% under disguised names such as dotnet_diag_<hex>.exe or.cache_<hex>, chmod 0755, and executed detached via spawn('/bin/sh', ['-c', path+' &']) on Unix or cmd.exe /c start /b on Windows. Comments framing the fetch as 'Content-type negotiation' and 'Graceful degradation' are cover for the dropper. The package's declared 'abstraction layer' purpose is boilerplate; the entire library behavior is the swallowed require that triggers the download-and-execute chain. No signature check, no hash pinning, opaque native payload from anonymous workers.dev infrastructure. ## Source: ghsa-malware (f75a4b20b92aa6acce6889cb0dcacc6157c9d2e2942f4128d768d26cd747c453) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

Affected software

npmghsa
fb-hr-sites--boxified-form-meetup-subcribe
Affected versions
=20.6.4

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 08/05/2026, 17:30:16 UTC

Technical Analysis

The package fb-hr-sites--boxified-form-meetup-subcribe (npm) version 20.6.4 exports an inert class but internally requires a module that downloads a platform-specific native binary from multiple Cloudflare workers.dev hostnames and a DNS-TXT fallback domain. The binary is saved to temporary directories with disguised names and executed detached using shell commands on Unix or Windows. The download and execution occur silently inside a try/catch block, with comments misleadingly describing the fetch as content-type negotiation and graceful degradation. There is no signature or hash verification of the downloaded payload, which originates from anonymous infrastructure, indicating a malicious dropper embedded in the package.

Potential Impact

Users installing or requiring this package version risk executing an unknown native binary on their systems without their knowledge or consent. This can lead to arbitrary code execution, potential system compromise, and persistence of malicious code. The lack of signature verification and use of anonymous infrastructure increases the risk of undetected malware deployment.

Mitigation Recommendations

No official patch or remediation is currently documented. Users should avoid using this package version (=20.6.4) and remove it from their environments. Monitor for updates or advisories from trusted sources regarding this package. Consider using trusted and verified packages only.

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Technical Details

Gcve Source
db.gcve.eu
Osv Id
MAL-2026-12381
Osv Schema Version
1.7.4
Ecosystems
["npm"]

Threat ID: 6a735746bf8831d539159fbf

Added to database: 08/05/2026, 15:31:18 UTC

Last enriched: 08/05/2026, 17:30:16 UTC

Last updated: 09/07/2026, 22:24:50 UTC

Views: 20

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