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Malicious package

zpx52503jbRubyGems

Malicious code in zpx52503jb (RubyGems) Remove it immediately and rotate any exposed credentials.

MAL-2026-9677
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall zpx52503jb

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

af39f53096f4f6d92684ef1fcb9852ad4fdd1082e10292cb97559ffa3526f0c4

Detection & response playbook

Malicious package
  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for zpx52503jb (version 0.0.1). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging zpx52503jb across your stack and pipelines.

  2. If you installed it — respond

    Remove zpx52503jb from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.

  3. Did it already run?

    If zpx52503jb was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.

  4. How O3 protects you

    O3 blocks zpx52503jb before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.

Frequently asked questions

No. zpx52503jb on RubyGems has been identified as a malicious package (version 0.0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-04328

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks zpx52503jb-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.

zpx52503jb (RubyGems) malicious package — MAL-2026-9677 | O3 Security