Malicious code in custom-plugins-request-factory (npm)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (c25a4c4f3672ed82aa59bcac3fff0c6eadcb3eb35add0f52155c4436cba62c52) The package's main entry auto-requires setup.js on load, which fetches a platform-specific executable from split-string-obfuscated Cloudflare Workers endpoints (oob-worker.cf102-baf.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf103-070.workers.dev), writes it to /tmp or %TEMP% under a disguised name (.cache_<hex> or dotnet_diag_<hex>.exe), chmods it 0755 on POSIX, and spawns it detached via /bin/sh -c or cmd.exe. If HTTPS delivery fails, setup.js reassembles a base64-encoded payload from DNS TXT records under *.dl.wel1.ru (sdk./ext./pkg./net.dl.wel1.ru) as a covert-channel fallback, decodes it, writes it to disk, and executes it. Network destinations and the child_process require are assembled at runtime from split string fragments, and the package is framed as an analytics/telemetry SDK. lib/telemetry.js ships a parallel write-chmod-spawn dropper with the same obfuscation pattern. Requiring or installing the package results in execution of an opaque attacker-controlled binary on the host.
Malicious code in custom-plugins-request-factory (npm)
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (c25a4c4f3672ed82aa59bcac3fff0c6eadcb3eb35add0f52155c4436cba62c52) The package's main entry auto-requires setup.js on load, which fetches a platform-specific executable from split-string-obfuscated Cloudflare Workers endpoints (oob-worker.cf102-baf.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf103-070.workers.dev), writes it to /tmp or %TEMP% under a disguised name (.cache_<hex> or dotnet_diag_<hex>.exe), chmods it 0755 on POSIX, and spawns it detached via /bin/sh -c or cmd.exe. If HTTPS delivery fails, setup.js reassembles a base64-encoded payload from DNS TXT records under *.dl.wel1.ru (sdk./ext./pkg./net.dl.wel1.ru) as a covert-channel fallback, decodes it, writes it to disk, and executes it. Network destinations and the child_process require are assembled at runtime from split string fragments, and the package is framed as an analytics/telemetry SDK. lib/telemetry.js ships a parallel write-chmod-spawn dropper with the same obfuscation pattern. Requiring or installing the package results in execution of an opaque attacker-controlled binary on the host.
Affected software
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Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-12668
- Osv Schema Version
- 1.7.4
- Aliases
- []
- Ecosystems
- ["npm"]
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a735736bf8831d5391445d3
Added to database: 08/05/2026, 15:31:02 UTC
Last updated: 08/05/2026, 15:39:18 UTC
Views: 1
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