MAL-2026-12242
Malicious code in tinkoff-fb-rf-add-application (npm)
Details
--- _-= Per source details. Do not edit below this line.=-_
## Source: amazon-inspector (788686e9aacdc59ec40f42563a7d9ba5020c75d6c724c8bf59623213b51df780) The package's main entry loads _bootstrap.js on require(), which downloads a platform-specific executable from string-fragment-obfuscated Cloudflare-workers mirrors (assembled at runtime via array-join, e.g. oob-worker.cf*.workers.dev) with a DNS-TXT chunked base64 fallback under *.dl.well1.site (tin/tina/ldr/win subdomains). The fetched bytes are written to /tmp or %TEMP% under a disguised filename impersonating system binaries (dotnet_diag_<tag>.exe on Windows,.cache_<tag> on Unix), chmod 0755, and spawned detached via /bin/sh -c or cmd.exe /c start /b. A lock file.analytics_state and telemetry-shaped env-var opt-outs provide a cover story. The C2 hostnames are constructed from split string fragments to evade static analysis.
Are you affected?
Enter the version of the package you're using.
Affected packages
No fixed version published yet for tinkoff-fb-rf-add-application (npm). Pin to a known-safe version or switch to an alternative.