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Malicious package

wmwk1abRubyGems

Malicious code in wmwk1ab (RubyGems) Remove it immediately and rotate any exposed credentials.

MAL-2026-9383
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall wmwk1ab

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

d70b6bcc94a659b7a277fca6094ccc5f45ddcc6ca936760284ee9383a258059d

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 wmwk1ab (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 wmwk1ab across your stack and pipelines.

  2. If you installed it — respond

    Remove wmwk1ab 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 wmwk1ab 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 wmwk1ab 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. wmwk1ab 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-2026-04034

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks wmwk1ab-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.

wmwk1ab (RubyGems) malicious package — MAL-2026-9383 | O3 Security