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Dev.to
7/1/2026
The original title is: How "Vibe Coding" Accidentally Turned My EC2 Instance Into a Cryptominer

The original title is: How "Vibe Coding" Accidentally Turned My EC2 Instance Into a Cryptominer

Original: How "Vibe Coding" Accidentally Turned My EC2 Instance Into a Cryptominer

Short summary

A developer discovered his EC2 instance running a Monero cryptominer after a fake npm package named child_process (spoofing Node.js's built-in module) was installed as a dependency. Malware deployed via postinstall scripts executed with root privileges and launched network scanning. Root cause: unrestricted egress (0.0.0.0/0), unpinned dependencies, and missing audits. Solutions: restrict outbound traffic, verify dependency names, pin versions, and audit package.json regularly.

  • Fake npm package (child_process) executed malware via postinstall scripts with root access
  • Vulnerabilities: unpinned dependencies, unrestricted egress (0.0.0.0/0), missing audits
  • Preventative fixes: restrict outbound traffic, verify dependency names against built-ins, pin versions, audit package.json

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